https://restorerivers.eu/wiki/api.php?action=feedcontributions&feedformat=atom&user=NIVA+DK 2026-04-04T12:06:45Z User contributions MediaWiki 1.39.7 https://restorerivers.eu/wiki/index.php?title=Case_study:Rehabilitation_of_the_river_Seger%C3%A5ga&diff=47880 2021-02-17T13:30:32Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status}}<br /> {{Location<br /> |Location=66.71876048455148, 13.2851743630509<br /> }}<br /> {{Project overview<br /> |Status=In progress<br /> |Themes=Environmental flows and water resources, Flood risk management, Habitat and biodiversity, Hydromorphology, Water quality<br /> |Country=Norway<br /> |Main contact forename=Kjetil<br /> |Main contact surname=Hansen<br /> |Contact organisation=Rødøy<br /> |Partner organisations=Norwegian Institute for Nature Research (NINA),<br /> |Multi-site=No<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Removing inorganic material.JPG<br /> |Caption=Removing inorganic material (sludge/fine sand. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=After measures in the lower part of river.JPG<br /> |Caption=After removal of the inorganic material (sludge/fine sand), reinfoorcement of river bank and gravel for spawning grounds. Photo: Kristin B. Klausen, local watercoordinator.<br /> }}<br /> {{Case study image<br /> |File name=Excavation of sediment ponds.JPG<br /> |Caption=Excavation of sediment ponds in the upper part of the river. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=Sediment pond after measure.JPG<br /> |Caption=Sediment pond. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=Excavation of sediment pond in the middel part.JPG<br /> |Caption=Excavation of sediment ponds in the middle part of the river. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=Sediment pond in the middle part after measure.jpg<br /> |Caption=Sediment ponds in the middle part of the river after measure. Photo: Kristin B. Klausen, local watercoordinator.<br /> }}<br /> {{Case study image<br /> |File name=Construction of fishing ladder.jpg<br /> |Caption=Construction of fishing ladder. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=Fish ladder after measure.JPG<br /> |Caption=Fish ladder after measure. Photo: Kristin B. Klausen, local watercoordinator.<br /> }}<br /> {{Case study image<br /> |File name=Digging of ditches and reinforcement of ditches.JPG<br /> |Caption=Digging of ditches and reinforcement of ditches. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=After digging of ditches and reinforcement of ditches.jpg<br /> |Caption=After digging of ditches and reinforcement of ditches. Photo: Kristin B. Klausen, local watercoordinator.<br /> }}<br /> {{Case study image<br /> |File name=Gravel for spawning grounds.jpg<br /> |Caption=Gravel for spawning grounds. Photo: Kristin B. Klausen, local watercoordinator.<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{Hydromorphological quality element table row<br /> |Element=Substrate conditions<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=Yes<br /> |Quantitative monitoring=No<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{Hydromorphological quality element table row<br /> |Element=Width &amp; depth variation<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=Yes<br /> |Quantitative monitoring=No<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{Biological quality element table row<br /> |Element=Fish: Abundance<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{Biological quality element table row<br /> |Element=Fish: Age structure<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates: Diversity<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates: Abundance<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{Physico-chemical quality element table row<br /> |Element=PH<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references<br /> |Link=https://brage.nina.no/nina-xmlui/handle/11250/2446580<br /> |Description=Plan for rehabilitation of the river<br /> }}<br /> {{Additional links and references<br /> |Link=https://brage.nina.no/nina-xmlui/handle/11250/2436896<br /> |Description=Fish biological survey<br /> }}<br /> {{Additional links and references<br /> |Link=https://niva.brage.unit.no/niva-xmlui/handle/11250/2478427<br /> |Description=Survey of physico-chemical quality elements and biology<br /> }}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:Rehabilitation_of_the_river_Seger%C3%A5ga&diff=47879 2021-02-17T13:27:51Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status}}<br /> {{Location<br /> |Location=66.71876048455148, 13.2851743630509<br /> }}<br /> {{Project overview}}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Removing inorganic material.JPG<br /> |Caption=Removing inorganic material (sludge/fine sand. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=After measures in the lower part of river.JPG<br /> |Caption=After removal of the inorganic material (sludge/fine sand), reinfoorcement of river bank and gravel for spawning grounds. Photo: Kristin B. Klausen, local watercoordinator.<br /> }}<br /> {{Case study image<br /> |File name=Excavation of sediment ponds.JPG<br /> |Caption=Excavation of sediment ponds in the upper part of the river. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=Sediment pond after measure.JPG<br /> |Caption=Sediment pond. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=Excavation of sediment pond in the middel part.JPG<br /> |Caption=Excavation of sediment ponds in the middle part of the river. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=Sediment pond in the middle part after measure.jpg<br /> |Caption=Sediment ponds in the middle part of the river after measure. Photo: Kristin B. Klausen, local watercoordinator.<br /> }}<br /> {{Case study image<br /> |File name=Construction of fishing ladder.jpg<br /> |Caption=Construction of fishing ladder. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=Fish ladder after measure.JPG<br /> |Caption=Fish ladder after measure. Photo: Kristin B. Klausen, local watercoordinator.<br /> }}<br /> {{Case study image<br /> |File name=Digging of ditches and reinforcement of ditches.JPG<br /> |Caption=Digging of ditches and reinforcement of ditches. Photo: Kjetil Hansen, Rødøy municipality<br /> }}<br /> {{Case study image<br /> |File name=After digging of ditches and reinforcement of ditches.jpg<br /> |Caption=After digging of ditches and reinforcement of ditches. Photo: Kristin B. Klausen, local watercoordinator.<br /> }}<br /> {{Case study image<br /> |File name=Gravel for spawning grounds.jpg<br /> |Caption=Gravel for spawning grounds. Photo: Kristin B. Klausen, local watercoordinator.<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{Hydromorphological quality element table row<br /> |Element=Substrate conditions<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=Yes<br /> |Quantitative monitoring=No<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{Hydromorphological quality element table row<br /> |Element=Width &amp; depth variation<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=Yes<br /> |Quantitative monitoring=No<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{Biological quality element table row<br /> |Element=Fish: Abundance<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{Biological quality element table row<br /> |Element=Fish: Age structure<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates: Diversity<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates: Abundance<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{Physico-chemical quality element table row<br /> |Element=PH<br /> |Monitored before=Yes<br /> |Monitored after=No<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Awaiting results<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references<br /> |Link=https://brage.nina.no/nina-xmlui/handle/11250/2446580<br /> |Description=Plan for rehabilitation of the river<br /> }}<br /> {{Additional links and references<br /> |Link=https://brage.nina.no/nina-xmlui/handle/11250/2436896<br /> |Description=Fish biological survey<br /> }}<br /> {{Additional links and references<br /> |Link=https://niva.brage.unit.no/niva-xmlui/handle/11250/2478427<br /> |Description=Survey of physico-chemical quality elements and biology<br /> }}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_Grobruelva&diff=47877 2021-02-17T09:36:37Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Approved<br /> }}<br /> {{Location<br /> |Location=59.818737807261, 10.337757078153<br /> }}<br /> {{Project overview<br /> |Status=In progress<br /> |Themes=Fisheries, Habitat and biodiversity, Land use management - agriculture, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Ingvild<br /> |Main contact surname=Tandberg<br /> |Contact organisation=Vannområde Indre Oslofjord Vest<br /> |Contact organisation url=http://https://www.vannportalen.no/vannregioner/glomma/vannomrader-glomma/indre-oslofjord-vest/<br /> |Multi-site=No<br /> |Project summary=This project aimes to improve the habitat conditions of fast-growing sea trout (salmo trutta) in the Grobruelva river in the Lier municipality (Viken). They are impaired by re-routing of side arms, regulation of the main channel and pollution (roads and agriculture). First measures to counter pollution have been implemented (new pipe for sewage runoff). Habitat improving measures are planned, but have not been conducted yet. More information is expected soon and will be updated.<br /> |Project title=Restoration of Grobruelva<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Grobruelva.jpg<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Grobruelva<br /> |WFD water body code=009-170-R<br /> |WFD water body name=Åro watercourse<br /> |Heavily modified water body=No<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |River corridor land use=Intensive agriculture (arable), Urban, Coniferous woodland (semi natural),<br /> |Average bankfull channel width category=2 - 5 m<br /> |Average bankfull channel depth category=Less than 0.5 m<br /> |Mean discharge category=1 - 10 m³/s<br /> |Average channel gradient category=0.001 - 0.01<br /> }}<br /> {{Project background<br /> |Project started=2017/08/01<br /> |Total cost category=100 - 500 k€<br /> |Total1 cost=350<br /> |Funding sources=Land owners, municipality and Norwegian Environmental Agency<br /> |Investigation and design Lead organisation=Vannområdet Indre Oslofjord Vest<br /> |Investigation and design Other contact forename=Ingvild<br /> |Investigation and design Other contact surname=Tandberg<br /> |Stakeholder engagement Lead organisation=Vannområdet Indre Oslofjord Vest<br /> |Stakeholder engagement Other contact forename=Ingvild<br /> |Stakeholder engagement Other contact surname=Tandberg<br /> |Works1 and supervision cost category=100 - 500 k€<br /> |Works and supervision Lead organisation=Vannområdet Indre Oslofjord Vest; For some measures: Lierskogen Vel, Lier municipality and Buskerud JFF<br /> |Works and supervision Other contact forename=Ingvild<br /> |Works and supervision Other contact surname=Tandberg<br /> |Post-project management and maintenance Lead organisation=Vannområdet Indre Oslofjord Vest<br /> |Post-project management and maintenance Other contact forename=Ingvild<br /> |Post-project management and maintenance Other contact surname=Tandberg<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation, Pollution (eutrophication), River regulation<br /> |Hydromorphological quality elements=Relocation of sidearms, Regulation of main channel<br /> |Physico-chemical quality elements=Pollution ( e.g. phosphorus, litter )<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Installation of gravel habitat (gravel and stones)<br /> |Floodplain / River corridor=Removal of retainment structure (Rotubekken), improvement of fish migration (at Sagvollfossen)<br /> |Other technical measure=New pipe for sewage runoff along a side beck of Grobruelva<br /> |Management interventions=Removal of litter (especially car tires)<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:Restoration_of_Grobruelva&diff=47876 2021-02-17T09:35:44Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.818737807261, 10.337757078153<br /> }}<br /> {{Project overview<br /> |Status=In progress<br /> |Themes=Fisheries, Habitat and biodiversity, Land use management - agriculture, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Ingvild<br /> |Main contact surname=Tandberg<br /> |Contact organisation=Vannområde Indre Oslofjord Vest<br /> |Contact organisation url=http://https://www.vannportalen.no/vannregioner/glomma/vannomrader-glomma/indre-oslofjord-vest/<br /> |Multi-site=No<br /> |Project summary=This project aimes to improve the habitat conditions of fast-growing sea trout (salmo trutta) in the Grobruelva river in the Lier municipality (Viken). They are impaired by re-routing of side arms, regulation of the main channel and pollution (roads and agriculture). Habitat improving measures are planned, but not conducted yet. More information is expected soon and will be updated.<br /> |Project title=Restoration of Grobruelva<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Grobruelva.jpg<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Grobruelva<br /> |WFD water body code=009-170-R<br /> |WFD water body name=Åro watercourse<br /> |Heavily modified water body=No<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |River corridor land use=Intensive agriculture (arable), Urban, Coniferous woodland (semi natural),<br /> |Average bankfull channel width category=2 - 5 m<br /> |Average bankfull channel depth category=Less than 0.5 m<br /> |Mean discharge category=1 - 10 m³/s<br /> |Average channel gradient category=0.001 - 0.01<br /> }}<br /> {{Project background<br /> |Project started=2017/08/01<br /> |Total cost category=100 - 500 k€<br /> |Total1 cost=350<br /> |Funding sources=Land owners, municipality and Norwegian Environmental Agency<br /> |Investigation and design Lead organisation=Vannområdet Indre Oslofjord Vest<br /> |Investigation and design Other contact forename=Ingvild<br /> |Investigation and design Other contact surname=Tandberg<br /> |Stakeholder engagement Lead organisation=Vannområdet Indre Oslofjord Vest<br /> |Stakeholder engagement Other contact forename=Ingvild<br /> |Stakeholder engagement Other contact surname=Tandberg<br /> |Works1 and supervision cost category=100 - 500 k€<br /> |Works and supervision Lead organisation=Vannområdet Indre Oslofjord Vest; For some measures: Lierskogen Vel, Lier municipality and Buskerud JFF<br /> |Works and supervision Other contact forename=Ingvild<br /> |Works and supervision Other contact surname=Tandberg<br /> |Post-project management and maintenance Lead organisation=Vannområdet Indre Oslofjord Vest<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation, Pollution (eutrophication), River regulation<br /> |Hydromorphological quality elements=Relocation of sidearms, Regulation of main channel<br /> |Physico-chemical quality elements=Pollution ( e.g. phosphorus, litter )<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=information expected soon<br /> |Management interventions=information expected soon<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Skoleveien&diff=47838 2021-02-12T14:17:13Z

<p>NIVA DK: Deleted all input as this was a test</p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location}}<br /> {{Project overview<br /> |Project title=DUMMY_TEST_Skoleveien<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Multi-site=No<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream_1&diff=47774 2021-02-04T10:08:57Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979130567644255, 11.241640180908345<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NINA, NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project title=TEST_Deculverting the Texas Valley Stream 1<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2311,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturreservat<br /> |Protected species present=No<br /> |Invasive species present=Yes<br /> |Species=Canadian pondweed (Elodea canadensis ),<br /> }}<br /> {{Project background<br /> |Reach length directly affected=150<br /> |Project started=2015/04/06<br /> |Works started=2016/04/12<br /> |Works completed=2016/11/16<br /> |Project completed=2020/02/10<br /> |Total cost category=10 - 50 k€<br /> |Benefit to cost ratio=5<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet),<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |Stakeholder1 engagement cost category=Less than 1 k€<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=Freshwater flow regime,<br /> |Biological quality elements=Fish, Invertebrates,<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=Yes<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Physico-chemical quality element table row<br /> |Element=PH<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Inconclusive<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{Other response table row<br /> |Element=Increased recreation<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references<br /> |Link=https://www.niva.no/rapporter/overvaking-i-referanseelver<br /> |Description=Home page for the restoration project<br /> }}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream_1&diff=47773 2021-02-04T10:07:40Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979130567644255, 11.241640180908345<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NINA, NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project title=TEST_Deculverting the Texas Valley Stream 1<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2311,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturreservat<br /> |Protected species present=No<br /> |Invasive species present=Yes<br /> |Species=Canadian pondweed (Elodea canadensis ),<br /> }}<br /> {{Project background<br /> |Reach length directly affected=150<br /> |Project started=2015/04/06<br /> |Works started=2016/04/12<br /> |Works completed=2016/11/16<br /> |Project completed=2020/02/10<br /> |Total cost category=10 - 50 k€<br /> |Benefit to cost ratio=5<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet),<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |Stakeholder1 engagement cost category=Less than 1 k€<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=Freshwater flow regime,<br /> |Biological quality elements=Fish, Invertebrates,<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=Yes<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Physico-chemical quality element table row<br /> |Element=PH<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Inconclusive<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{Other response table row<br /> |Element=Increased recreation<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream_1&diff=47772 2021-02-04T10:06:17Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979130567644255, 11.241640180908345<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NINA, NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project title=TEST_Deculverting the Texas Valley Stream 1<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2311,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturreservat<br /> |Protected species present=No<br /> |Invasive species present=Yes<br /> |Species=Canadian pondweed (Elodea canadensis ),<br /> }}<br /> {{Project background<br /> |Reach length directly affected=150<br /> |Project started=2015/04/06<br /> |Works started=2016/04/12<br /> |Works completed=2016/11/16<br /> |Project completed=2020/02/10<br /> |Total cost category=10 - 50 k€<br /> |Benefit to cost ratio=5<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet),<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |Stakeholder1 engagement cost category=Less than 1 k€<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=Freshwater flow regime,<br /> |Biological quality elements=Fish, Invertebrates,<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{Other response table row<br /> |Element=Increased recreation<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=No<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream_1&diff=47769 2021-02-04T10:03:25Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979130567644255, 11.241640180908345<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NINA, NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project title=TEST_Deculverting the Texas Valley Stream 1<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2311,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturreservat<br /> |Protected species present=No<br /> |Invasive species present=Yes<br /> |Species=Canadian pondweed (Elodea canadensis ),<br /> }}<br /> {{Project background<br /> |Reach length directly affected=150<br /> |Project started=2015/04/06<br /> |Works started=2016/04/12<br /> |Works completed=2016/11/16<br /> |Project completed=2020/02/10<br /> |Total cost category=10 - 50 k€<br /> |Benefit to cost ratio=5<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet),<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |Stakeholder1 engagement cost category=Less than 1 k€<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=Freshwater flow regime,<br /> |Biological quality elements=Fish, Invertebrates,<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream_1&diff=47767 2021-02-04T10:00:17Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979130567644255, 11.241640180908345<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NINA, NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project title=TEST_Deculverting the Texas Valley Stream 1<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2311,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturreservat<br /> |Protected species present=No<br /> |Invasive species present=Yes<br /> |Species=Canadian pondweed (Elodea canadensis ),<br /> }}<br /> {{Project background<br /> |Reach length directly affected=150<br /> |Project started=2015/04/06<br /> |Works started=2016/04/12<br /> |Works completed=2016/11/16<br /> |Project completed=2020/02/10<br /> |Total cost category=10 - 50 k€<br /> |Benefit to cost ratio=5<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet),<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |Stakeholder1 engagement cost category=Less than 1 k€<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream_1&diff=47766 2021-02-04T09:55:37Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979130567644255, 11.241640180908345<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NINA, NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project title=TEST_Deculverting the Texas Valley Stream 1<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2311,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturreservat<br /> |Protected species present=No<br /> |Invasive species present=Yes<br /> |Species=Canadian pondweed (Elodea canadensis ),<br /> }}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream_1&diff=47765 2021-02-04T09:44:44Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979130567644255, 11.241640180908345<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NINA, NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project title=TEST_Deculverting the Texas Valley Stream 1<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=File:RiverWiki_TEST_image1.jpg&diff=47764 2021-02-04T09:44:18Z

<p>NIVA DK: NIVA DK uploaded a new version of File:RiverWiki TEST image1.jpg</p> <hr /> <div>The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream_1&diff=47763 2021-02-04T09:39:49Z

<p>NIVA DK: Created page with &quot;{{Case study status |Approval status=Draft }} {{Location |Location=59.979130567644255, 11.241640180908345 }} {{Project overview |Project title=TEST_Deculverting the Texas Vall...&quot;</p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979130567644255, 11.241640180908345<br /> }}<br /> {{Project overview<br /> |Project title=TEST_Deculverting the Texas Valley Stream 1<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Multi-site=No<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Skoleveien&diff=47757 2021-02-03T09:30:15Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.978223649342254, 11.236775234658735<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Country=Norway<br /> |Main contact forename=Therese Fosholt<br /> |Main contact surname=Moe<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Multi-site=No<br /> |Project summary=This is just a test for a RiverWiki introduction webinar. This case will be deleted.<br /> |Project title=DUMMY_TEST_Skoleveien<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=002.D1<br /> }}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Skoleveien&diff=47756 2021-02-03T09:26:51Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.978223649342254, 11.236775234658735<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=Norwegian Institute for Water Research (NIVA)<br /> |Multi-site=No<br /> |Picture description=This is just a test. This case will be deleted. 2<br /> |Project title=DUMMY_TEST_Skoleveien<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=002.D1<br /> }}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream&diff=47755 2021-02-02T21:22:35Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97907967211411, 11.241643046299629<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA, NINA<br /> |Multi-site=No<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Deculverting the Texas Valley Stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2311,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Physico-chemical quality element table row<br /> |Element=Oxygen balance<br /> |Monitored before=Yes<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream&diff=47754 2021-02-02T20:43:54Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97907967211411, 11.241643046299629<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA, NINA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Deculverting the Texas Valley Stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2311,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Physico-chemical quality element table row<br /> |Element=Oxygen balance<br /> |Monitored before=Yes<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream&diff=47753 2021-02-02T20:41:36Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97907967211411, 11.241643046299629<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA, NINA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Deculverting the Texas Valley Stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2311,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream&diff=47752 2021-02-02T20:37:38Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97907967211411, 11.241643046299629<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA, NINA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Deculverting the Texas Valley Stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2311,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream&diff=47751 2021-02-02T20:32:38Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97907967211411, 11.241643046299629<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA, NINA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Deculverting the Texas Valley Stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream&diff=47750 2021-02-02T20:27:00Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97907967211411, 11.241643046299629<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA, NINA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project title=TEST_Deculverting the Texas Valley Stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=File:RiverWiki_TEST_image1.jpg&diff=47749 2021-02-02T20:26:26Z

<p>NIVA DK: NIVA DK uploaded a new version of File:RiverWiki TEST image1.jpg</p> <hr /> <div>The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Deculverting_the_Texas_Valley_Stream&diff=47748 2021-02-02T20:23:26Z

<p>NIVA DK: Created page with &quot;{{Case study status |Approval status=Draft }} {{Location |Location=59.97907967211411, 11.241643046299629 }} {{Project overview |Project title=TEST_Deculverting the Texas Valle...&quot;</p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97907967211411, 11.241643046299629<br /> }}<br /> {{Project overview<br /> |Project title=TEST_Deculverting the Texas Valley Stream<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Multi-site=No<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Daylighting_the_Texas_Valley_stream&diff=47747 2021-02-02T19:59:39Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979076201741584, 11.241601638935451<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA,<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. Newly restored stretch of stream Texas Valley, one year after implementation of restoration measures, i.e. March 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Daylighting the Texas Valley stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2321,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=150<br /> |Project started=2015/02/02<br /> |Works started=2016/05/08<br /> |Works completed=2016/11/22<br /> |Project completed=2020/11/23<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm Municpality<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Biological quality elements=Fish, Macroalgae, Invertebrates,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Case study monitoring documents<br /> |Monitoring document=Monitoring report for Webinar.pdf<br /> }}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=File:Monitoring_report_for_Webinar.pdf&diff=47746 2021-02-02T19:59:33Z

<p>NIVA DK: NIVA DK uploaded a new version of File:Monitoring report for Webinar.pdf</p> <hr /> <div>Monitoring report for ecological status in the Texas Valley stream 2020.</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Daylighting_the_Texas_Valley_stream&diff=47745 2021-02-02T19:57:50Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979076201741584, 11.241601638935451<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA,<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. Newly restored stretch of stream Texas Valley, one year after implementation of restoration measures, i.e. March 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Daylighting the Texas Valley stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2321,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=150<br /> |Project started=2015/02/02<br /> |Works started=2016/05/08<br /> |Works completed=2016/11/22<br /> |Project completed=2020/11/23<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm Municpality<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Biological quality elements=Fish, Macroalgae, Invertebrates,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Daylighting_the_Texas_Valley_stream&diff=47744 2021-02-02T19:55:18Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979076201741584, 11.241601638935451<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA,<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. Newly restored stretch of stream Texas Valley, one year after implementation of restoration measures, i.e. March 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Daylighting the Texas Valley stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2321,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=150<br /> |Project started=2015/02/02<br /> |Works started=2016/05/08<br /> |Works completed=2016/11/22<br /> |Project completed=2020/11/23<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm Municpality<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Biological quality elements=Fish, Macroalgae, Invertebrates,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Daylighting_the_Texas_Valley_stream&diff=47743 2021-02-02T19:53:44Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979076201741584, 11.241601638935451<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA,<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. Newly restored stretch of stream Texas Valley, one year after implementation of restoration measures, i.e. March 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Daylighting the Texas Valley stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2321,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=150<br /> |Project started=2015/02/02<br /> |Works started=2016/05/08<br /> |Works completed=2016/11/22<br /> |Project completed=2020/11/23<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm Municpality<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Biological quality elements=Fish, Macroalgae, Invertebrates,<br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Daylighting_the_Texas_Valley_stream&diff=47742 2021-02-02T19:51:46Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979076201741584, 11.241601638935451<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA,<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. Newly restored stretch of stream Texas Valley, one year after implementation of restoration measures, i.e. March 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Daylighting the Texas Valley stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2321,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=150<br /> |Project started=2015/02/02<br /> |Works started=2016/05/08<br /> |Works completed=2016/11/22<br /> |Project completed=2020/11/23<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm Municpality<br /> }}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Daylighting_the_Texas_Valley_stream&diff=47741 2021-02-02T19:48:37Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979076201741584, 11.241601638935451<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA,<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. Newly restored stretch of stream Texas Valley, one year after implementation of restoration measures, i.e. March 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Daylighting the Texas Valley stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R,<br /> |WFD (national) typology=REL2321,<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Daylighting_the_Texas_Valley_stream&diff=47740 2021-02-02T19:42:17Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979076201741584, 11.241601638935451<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA,<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. Newly restored stretch of stream Texas Valley, one year after implementation of restoration measures, i.e. March 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=TEST_Daylighting the Texas Valley stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Daylighting_the_Texas_Valley_stream&diff=47739 2021-02-02T19:35:00Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979076201741584, 11.241601638935451<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA,<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. Newly restored stretch of stream Texas Valley, one year after implementation of restoration measures, i.e. March 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project title=TEST_Daylighting the Texas Valley stream<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=File:RiverWiki_TEST_image1.jpg&diff=47738 2021-02-02T19:33:56Z

<p>NIVA DK: NIVA DK uploaded a new version of File:RiverWiki TEST image1.jpg</p> <hr /> <div>The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:TEST_Daylighting_the_Texas_Valley_stream&diff=47737 2021-02-02T19:29:45Z

<p>NIVA DK: Created page with &quot;{{Case study status |Approval status=Draft }} {{Location |Location=59.979076201741584, 11.241601638935451 }} {{Project overview |Project title=TEST_Daylighting the Texas Valle...&quot;</p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.979076201741584, 11.241601638935451<br /> }}<br /> {{Project overview<br /> |Project title=TEST_Daylighting the Texas Valley stream<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Multi-site=No<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site}}<br /> {{Project background}}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47735 2021-02-02T15:48:51Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=River continuity<br /> |Biological quality elements=Fish, benthic algae, macroinvertebrates<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{Hydromorphological quality element table row<br /> |Element=Quantity &amp; dynamics of flow<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{Biological quality element table row<br /> |Element=Fish<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{Biological quality element table row<br /> |Element=Macroalgae<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=Yes<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Case study monitoring documents<br /> |Monitoring document=Monitoring report for Webinar.pdf<br /> |Description=Monitoring report ecological status<br /> }}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references<br /> |Link=www.niva.no/en/projectweb/alnaelvaprosjektet<br /> |Description=Project website (in Norwegian)<br /> }}<br /> {{Additional links and references<br /> |Link=www.niva.no/rapporter/overvaking-i-referanseelver<br /> |Description=Comparable reference rivers (in Norwegian)<br /> }}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information<br /> |Information=This page is only a test page, used to make a webinar by the Norwegian Institute for Water Research (NIVA), for the Norwegian Environment Agency (Miljødirektoratet). The page will be deleted after the webinar (Feb 2021). For questions, please contact Therese Fosholt Moe: tfm@niva.no.<br /> }}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47734 2021-02-02T15:46:32Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=River continuity<br /> |Biological quality elements=Fish, benthic algae, macroinvertebrates<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{Hydromorphological quality element table row<br /> |Element=Quantity &amp; dynamics of flow<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{Biological quality element table row<br /> |Element=Fish<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{Biological quality element table row<br /> |Element=Macroalgae<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=Yes<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Case study monitoring documents<br /> |Monitoring document=Monitoring report for Webinar.pdf<br /> |Description=Monitoring report ecological status<br /> }}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references<br /> |Link=www.niva.no/en/projectweb/alnaelvaprosjektet<br /> |Description=Project website (in Norwegian)<br /> }}<br /> {{Additional links and references<br /> |Link=www.niva.no/rapporter/overvaking-i-referanseelver<br /> |Description=Comparable reference rivers (in Norwegian)<br /> }}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47733 2021-02-02T15:44:51Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=River continuity<br /> |Biological quality elements=Fish, benthic algae, macroinvertebrates<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{Hydromorphological quality element table row<br /> |Element=Quantity &amp; dynamics of flow<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{Biological quality element table row<br /> |Element=Fish<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{Biological quality element table row<br /> |Element=Macroalgae<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=Yes<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Case study monitoring documents<br /> |Monitoring document=Monitoring report for Webinar.pdf<br /> |Description=Monitoring report ecological status<br /> }}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references<br /> |Link=www.niva.no/en/projectweb/alnaelvaprosjektet<br /> |Description=Project website<br /> }}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47732 2021-02-02T15:43:19Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=River continuity<br /> |Biological quality elements=Fish, benthic algae, macroinvertebrates<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{Hydromorphological quality element table row<br /> |Element=Quantity &amp; dynamics of flow<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{Biological quality element table row<br /> |Element=Fish<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{Biological quality element table row<br /> |Element=Macroalgae<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=Yes<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Case study monitoring documents<br /> |Monitoring document=Monitoring report for Webinar.pdf<br /> |Description=Monitoring report ecological status<br /> }}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=File:Monitoring_report_for_Webinar.pdf&diff=47731 2021-02-02T15:43:11Z

<p>NIVA DK: Monitoring report for ecological status in the Texas Valley stream 2020.</p> <hr /> <div>Monitoring report for ecological status in the Texas Valley stream 2020.</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=File:Monitoring_report_NIVA_7485-2020.pdf&diff=47730 2021-02-02T15:38:20Z

<p>NIVA DK: Monitoring report of ecological status after daylighting of the Texas Valley stream above the Texas Valley.</p> <hr /> <div>Monitoring report of ecological status after daylighting of the Texas Valley stream above the Texas Valley.</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47729 2021-02-02T15:34:00Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=River continuity<br /> |Biological quality elements=Fish, benthic algae, macroinvertebrates<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{Hydromorphological quality element table row<br /> |Element=Quantity &amp; dynamics of flow<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{Biological quality element table row<br /> |Element=Fish<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{Biological quality element table row<br /> |Element=Macroalgae<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=Yes<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Case study monitoring documents<br /> |Monitoring document=https://niva.brage.unit.no/niva-xmlui/handle/11250/2652556<br /> |Description=Monitoring report ecological status<br /> }}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47728 2021-02-02T15:23:19Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=RiverWiki TEST image1.jpg<br /> |Picture description=2. The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=River continuity<br /> |Biological quality elements=Fish, benthic algae, macroinvertebrates<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{Hydromorphological quality element table row<br /> |Element=Quantity &amp; dynamics of flow<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{Biological quality element table row<br /> |Element=Fish<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{Biological quality element table row<br /> |Element=Macroalgae<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=Yes<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=File:RiverWiki_TEST_image1.jpg&diff=47727 2021-02-02T15:20:24Z

<p>NIVA DK: The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.</p> <hr /> <div>The Texas Valley stream one year after daylighting. July 26th 2017. Photo: Kari Nordkvinne/NIVA.</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47726 2021-02-02T15:11:36Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=0515.jpg<br /> |Picture description=Test photo.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=River continuity<br /> |Biological quality elements=Fish, benthic algae, macroinvertebrates<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{Hydromorphological quality element table row<br /> |Element=Quantity &amp; dynamics of flow<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{Biological quality element table row<br /> |Element=Fish<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{Biological quality element table row<br /> |Element=Macroalgae<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{Physico-chemical quality element table row<br /> |Element=Nutrient concentrations<br /> |Monitored before=Yes<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47725 2021-02-02T15:10:45Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=0515.jpg<br /> |Picture description=Test photo.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=River continuity<br /> |Biological quality elements=Fish, benthic algae, macroinvertebrates<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{Hydromorphological quality element table row<br /> |Element=Quantity &amp; dynamics of flow<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{Biological quality element table row<br /> |Element=Fish<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{Biological quality element table row<br /> |Element=Invertebrates<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{Biological quality element table row<br /> |Element=Macroalgae<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=Improvement<br /> }}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47724 2021-02-02T15:09:16Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=0515.jpg<br /> |Picture description=Test photo.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=River continuity<br /> |Biological quality elements=Fish, benthic algae, macroinvertebrates<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{Hydromorphological quality element table row<br /> |Element=Quantity &amp; dynamics of flow<br /> |Monitored before=No<br /> |Monitored after=Yes<br /> |Qualitative monitoring=No<br /> |Quantitative monitoring=Yes<br /> |Control site used=Yes<br /> |Result=No change<br /> }}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47723 2021-02-02T15:07:17Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=0515.jpg<br /> |Picture description=Test photo.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=River continuity<br /> |Biological quality elements=Fish, benthic algae, macroinvertebrates<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures<br /> |Bank and bed modifications measure=Deculverting,<br /> |Floodplain / River corridor=Erosion protection,<br /> |Other technical measure=construction of recreational facilities (trails and footbridges),<br /> |Social measures=Volunteer engagement,<br /> }}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47722 2021-02-02T15:03:42Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=0515.jpg<br /> |Picture description=Test photo.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations<br /> |Specific mitigation=Urbanisation,<br /> |Hydromorphological quality elements=River continuity<br /> |Biological quality elements=Fish, benthic algae, macroinvertebrates<br /> |Physico-chemical quality elements=Nutrient concentrations,<br /> |Other motivation=Recreation,<br /> }}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK https://restorerivers.eu/wiki/index.php?title=Case_study:DUMMY_TEST_Daylighting_Sorum&diff=47721 2021-02-02T14:58:11Z

<p>NIVA DK: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=59.97902200445053, 11.241623321765823<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Economic aspects, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Spatial planning, Water quality, Urban<br /> |Country=Norway<br /> |Main contact forename=Kari<br /> |Main contact surname=Nordkvinne<br /> |Contact organisation=County Governor of Oslo og Viken<br /> |Contact organisation url=https://www.statsforvalteren.no/en/oslo-og-viken/<br /> |Partner organisations=NIVA<br /> |Multi-site=No<br /> |Project picture=0515.jpg<br /> |Picture description=Test photo.<br /> |Project summary=Daylighting of a previously culverted stream in a suburban area. The culvert was old and under dimensioned, thus it had to be either exchanged with a larger culvert, or removed. Based on a cost-benefit analysis, the latter was chosen, and the land owner decided on three main goals for the daylighting: 1) improve the water quality to good ecological status, 2) reduce bank erosion after removing the culvert, 3) increase the natural recreational area within this suburban zone. <br /> <br /> The project was planned and prospected in 2015, the daylighting, flood protection and reconstruction of the riparian zone was conducted in 2016, and monitoring was conducted in 2017 and 2020.<br /> |Monitoring surveys and results=Assessments of the ecological status based on nutrients, benthic algae, macroinvertebrates and fish were conducted twice, in 2017 and in 2020. The overall ecological status in 2017 and 2020 was bad due to lack of fish. This is due to a fish barrier (culvert) further down. However, macroinvertebrates increased from poor (2017) to good ecological status (2020), and benthic algae showed good status both years, thus these two organism groups had a good effect of the daylighting. Nutrients showed moderate status both years (Tot N and Tot P), which was the same as the upstream reference stretch. <br /> <br /> Embankments were set in place to reduce the risk of bank erosion after daylighting, as this could lead to negative impacts on local buildings and infrastructure. 2 years of continuous monitoring of particle runoff in the daylighted stretch was compared to similar measurements at the upstream open section, and there were no differences in particle runoff from the two stretches. <br /> <br /> To assess the recreational use of the area, the local bicycle club registered number of people using the new pathway and bench area every Saturday 10:00-14:00 from May-Oct 2017 and 2020. This showed an initial peak of users right after opening, then a slight decrease in 2017. However, the use was clearly higher in 2020, and the area was used by at least 9 people in the time registered every weekend in 2020.<br /> |Lessons learn=Opening the stream has had very good reviews from the local residents and on the ecological status for benthic algae and macroinvertebrates. The bank erosion measures seem to work well after installment, but were built in a period of heavy rain, causing surplus erosion that could have been avoided. If fish status is to be improved, then the downstream culvert also needs to reopen. The costs of these measures were similar to building a new culvert, but yearly maintenance costs have so far been lower, and the recreational benefits are positive. The local bicycle club also have some ownership of the area now, through their monitoring, which has resulted in their free involvement in keeping the area free of garbage.<br /> |Project title=DUMMY_TEST_Daylighting_Sorum<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment}}<br /> {{Site<br /> |Name=Texasbekken<br /> |WFD water body code=006-189-R<br /> |WFD (national) typology=REL1411<br /> |WFD water body name=Texasbekken oppstrøms Texasdalen<br /> |Pre-project morphology=Closed culvert,<br /> |Reference morphology=Naturally straight,<br /> |Desired post project morphology=Naturally straight,<br /> |Heavily modified water body=No<br /> |Site designation=Norway - Naturminne<br /> |Local site designation=World Hertiage Site,<br /> |Protected species present=No<br /> |Invasive species present=No<br /> |Dominant hydrology=Artificially regulated,<br /> |Dominant substrate=Clay,<br /> |River corridor land use=Tall herb/rank vegetation,<br /> }}<br /> {{Project background<br /> |Reach length directly affected=200<br /> |Project started=2015/04/06<br /> |Works started=2016/05/02<br /> |Works completed=2016/11/15<br /> |Project completed=2020/12/16<br /> |Total cost category=50 - 100 k€<br /> |Funding sources=Norwegian Environment Agency (Miljødirektoratet), Lillestrøm kommune<br /> |Investigation and design cost category=1 - 10 k€<br /> |Investigation and design Lead organisation=Norwegian Institute for Nature Research (NINA)<br /> |Investigation and design Other contact forename=Berit<br /> |Investigation and design Other contact surname=Köhler<br /> |stk engagement cost=1500<br /> |Stakeholder engagement Lead organisation=Norwegian Institute for Water Research (NIVA)<br /> |Stakeholder engagement Other contact forename=Ingrid<br /> |Stakeholder engagement Other contact surname=Nesheim<br /> }}<br /> {{Motivations}}<br /> {{Measures}}<br /> {{Hydromorphological quality elements header}}<br /> {{End table}}<br /> {{Biological quality elements header}}<br /> {{End table}}<br /> {{Physico-chemical quality elements header}}<br /> {{End table}}<br /> {{Other responses header}}<br /> {{End table}}<br /> {{Monitoring documents}}<br /> {{Monitoring documents end}}<br /> {{Additional Documents}}<br /> {{Additional Documents end}}<br /> {{Additional links and references header}}<br /> {{Additional links and references footer}}<br /> {{Supplementary Information}}<br /> {{Toggle content end}}</div>

NIVA DK