https://restorerivers.eu/wiki/api.php?action=feedcontributions&feedformat=atom&user=AlexBE 2026-04-25T21:47:59Z User contributions MediaWiki 1.39.7 https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35325 2015-07-22T13:19:29Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 3.6 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> <br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> <br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community. <br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to future restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Photo intro.jpg<br /> |Caption=Bocq: Rehabilitation projects<br /> }}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Barriers location on the Bocq catchment pre and post Walphy project<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=BocqYvoir effacement2.jpg<br /> |Caption=Bocq at Yvoir: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=BocqYvoir effacement.jpg<br /> |Caption=Bocq at Yvoir: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=P8030038.JPG<br /> |Caption=Bocq at Spontin: Rock ramp<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<br /> }}<br /> {{Case study image<br /> |File name=BocqGemenne bois.jpg<br /> |Caption=Bocq at Gemenne: Wood addition<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Bocq<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:P8030038.JPG&diff=35324 2015-07-22T13:17:14Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:BocqGemenne_bois.jpg&diff=35323 2015-07-22T13:16:24Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:BocqYvoir_effacement2.jpg&diff=35322 2015-07-22T13:15:57Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:BocqYvoir_effacement.jpg&diff=35321 2015-07-22T13:15:24Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Eau_Blanche_River_(Walphy_-_LIFE_project)&diff=35320 2015-07-22T12:37:22Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.089284099568594, 4.537276402115822<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur, <br /> |Multi-site=Yes<br /> |Project picture=P8030001.JPG<br /> |Picture description=Eau Blanche at Nismes: meandering channel (one year post completion)<br /> |Project summary=n the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Eau Blanche is a medium-size gravel-bed river. Its downstream reach (13 km) is characterized by a low gradient (1-2 ‰), a low energy (specific stream power at the bankfull stage: 20 W/m²) and a wide floodplain (around 600 m). Its channel have been straightened and embanked over the last few centuries (sinuosity index decreased from 1.6 to 1.1), which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Eau Blanche catchment has led to several restoration projects on a total length 6 km. They consist of measures of different ambitions such as reconnecting remnant meander, meandering river channel and habitat diversification. In addition, we undertook locally to improve fish shelters and spawning areas.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> <br /> Hydromorphology was evaluated on three restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). The most positive effects were observed for the most ambitious projects (meandering river channel and reconnecting remnant meander compared to habitat diversification). <br /> <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. As for hydromorphology, we might conclude that the most ambitious rehabilitation measures have resulted in the most positive effects. However, it would be prudent to await the results of the next monitoring surveys (4 years post-completion).<br /> <br /> The geomorphological monitoring has focused on the effect of rehabilitation measures on river dynamic (bedload transport, bank erosion) and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community.<br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to future restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=EB rectification.jpg<br /> |Caption=Straightening of the Eau blanche river<br /> }}<br /> {{Case study image<br /> |File name=EB-Nismes.jpg<br /> |Caption=Remeandering river channel at Nismes<br /> }}<br /> {{Case study image<br /> |File name=EB Nismes chantier.JPG<br /> |Caption=Remeandering river channel at Nismes<br /> }}<br /> {{Case study image<br /> |File name=EB-Mariembourg deflectors.jpg<br /> |Caption=Habitat diversification at Mariembourg<br /> }}<br /> {{Case study image<br /> |File name=EB-Mariembourg bois.jpg<br /> |Caption=Habitat diversification at Mariembourg<br /> }}<br /> {{Case study image<br /> |File name=EB Mariembourg 2010.jpg<br /> |Caption=Habitat diversification at Mariembourg<br /> }}<br /> {{Case study image<br /> |File name=EB BoussuAmont chantier.JPG<br /> |Caption=Reconnecting a remnant meander at Boussu-en-Fagne<br /> }}<br /> {{Case study image<br /> |File name=EB boussu.jpg<br /> |Caption=Reconnecting a remnant meander at Boussu-en-Fagne<br /> }}<br /> {{Case study image<br /> |File name=EB Boussu2012.jpg<br /> |Caption=Reconnecting a remnant meander at Boussu-en-Fagne (1 year post-completion)<br /> }}<br /> {{Case study image<br /> |File name=EB Boussu peche.JPG<br /> |Caption=Electrofishing at Boussu-en-Fagne<br /> }}<br /> {{Case study image<br /> |File name=EB Nismes sentier.JPG<br /> |Caption=Educational pathway at Nismes<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Eau Blanche<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Eau_Blanche_River_(Walphy_-_LIFE_project)&diff=35319 2015-07-22T12:36:08Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.089284099568594, 4.537276402115822<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur, <br /> |Multi-site=Yes<br /> |Project picture=P8030001.JPG<br /> |Picture description=Eau Blanche at Nismes: meandering channel (one year post completion)<br /> |Project summary=n the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Eau Blanche is a medium-size gravel-bed river. Its downstream reach (13 km) is characterized by a low gradient (1-2 ‰), a low energy (specific stream power at the bankfull stage: 20 W/m²) and a wide floodplain (around 600 m). Its channel have been straightened and embanked over the last few centuries (sinuosity index decreased from 1.6 to 1.1), which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Eau Blanche catchment has led to several restoration projects on a total length 6 km. They consist of measures of different ambitions such as reconnecting remnant meander, meandering river channel and habitat diversification. In addition, we undertook locally to improve fish shelters and spawning areas.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> <br /> Hydromorphology was evaluated on three restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). The most positive effects were observed for the most ambitious projects (meandering river channel and reconnecting remnant meander compared to habitat diversification). <br /> <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. As for hydromorphology, we might conclude that the most ambitious rehabilitation measures have resulted in the most positive effects. However, it would be prudent to await the results of the next monitoring surveys (4 years post-completion).<br /> <br /> The geomorphological monitoring has focused on the effect of rehabilitation measures on river dynamic (bedload transport, bank erosion) and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community.<br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to future restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=EB rectification.jpg<br /> |Caption=Straightening of the Eau blanche river<br /> }}<br /> {{Case study image<br /> |File name=EB-Nismes.jpg<br /> |Caption=Remeandering river channel at Nismes<br /> }}<br /> {{Case study image<br /> |File name=EB Nismes chantier.JPG<br /> |Caption=Remeandering river channel at Nismes<br /> }}<br /> {{Case study image<br /> |File name=EB-Mariembourg deflectors.jpg<br /> |Caption=Habitat diversification at Mariembourg<br /> }}<br /> {{Case study image<br /> |File name=EB-Mariembourg bois.jpg<br /> |Caption=Habitat diversification at Mariembourg<br /> }}<br /> {{Case study image<br /> |File name=EB Mariembourg 2010.jpg<br /> |Caption=Habitat diversification at Mariembourg<br /> }}<br /> {{Case study image<br /> |File name=EB BoussuAmont chantier.JPG<br /> |Caption=Reconnecting a remnant meander at Boussu-en-Fagne<br /> }}<br /> {{Case study image<br /> |File name=EB boussu.jpg<br /> |Caption=Reconnecting a remnant meander at Boussu-en-Fagne<br /> }}<br /> {{Case study image<br /> |File name=EB Boussu2012.jpg<br /> |Caption=Reconnecting a remnant meander at Boussu-en-Fagne (1 year post-completion)<br /> }}<br /> {{Case study image<br /> |File name=EB Boussu peche.JPG<br /> |Caption=Electrofishing at Boussu-en-Fagne<br /> }}<br /> {{Case study image<br /> |File name=EB Nismes sentier.JPG<br /> |Caption=Educational pathway ar<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Eau Blanche<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB_Nismes_sentier.JPG&diff=35318 2015-07-22T12:33:28Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB_BoussuAmont_chantier.JPG&diff=35317 2015-07-22T12:32:29Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB_Boussu_peche.JPG&diff=35316 2015-07-22T12:31:20Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB_Boussu2012.jpg&diff=35315 2015-07-22T12:30:06Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB_rectification.jpg&diff=35314 2015-07-22T12:29:30Z

<p>AlexBE: AlexBE uploaded a new version of &amp;quot;File:EB rectification.jpg&amp;quot;</p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Eau_Blanche_River_(Walphy_-_LIFE_project)&diff=35313 2015-07-22T11:52:22Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.089284099568594, 4.537276402115822<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur, <br /> |Multi-site=Yes<br /> |Project picture=P8030001.JPG<br /> |Picture description=Eau Blanche at Nismes: meandering channel (one year post completion)<br /> |Project summary=n the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Eau Blanche is a medium-size gravel-bed river. Its downstream reach (13 km) is characterized by a low gradient (1-2 ‰), a low energy (specific stream power at the bankfull stage: 20 W/m²) and a wide floodplain (around 600 m). Its channel have been straightened and embanked over the last few centuries (sinuosity index decreased from 1.6 to 1.1), which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Eau Blanche catchment has led to several restoration projects on a total length 6 km. They consist of measures of different ambitions such as reconnecting remnant meander, meandering river channel and habitat diversification. In addition, we undertook locally to improve fish shelters and spawning areas.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> <br /> Hydromorphology was evaluated on three restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). The most positive effects were observed for the most ambitious projects (meandering river channel and reconnecting remnant meander compared to habitat diversification). <br /> <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. As for hydromorphology, we might conclude that the most ambitious rehabilitation measures have resulted in the most positive effects. However, it would be prudent to await the results of the next monitoring surveys (4 years post-completion).<br /> <br /> The geomorphological monitoring has focused on the effect of rehabilitation measures on river dynamic (bedload transport, bank erosion) and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community.<br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to future restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=EB rectification.jpg<br /> |Caption=Straightening of the Eau blanche river<br /> }}<br /> {{Case study image<br /> |File name=EB-Nismes.jpg<br /> |Caption=Remeandering river channel at Nismes<br /> }}<br /> {{Case study image<br /> |File name=EB Nismes chantier.JPG<br /> |Caption=Remeandering river channel at Nismes<br /> }}<br /> {{Case study image<br /> |File name=EB-Mariembourg deflectors.jpg<br /> |Caption=Habitat diversification at Mariembourg<br /> }}<br /> {{Case study image<br /> |File name=EB-Mariembourg bois.jpg<br /> |Caption=Habitat diversification at Mariembourg<br /> }}<br /> {{Case study image<br /> |File name=EB Mariembourg 2010.jpg<br /> |Caption=Habitat diversification at Mariembourg<br /> }}<br /> {{Case study image<br /> |File name=EB boussu.jpg<br /> |Caption=Reconnecting a remnant meander at Boussu-en-Fagne<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Eau Blanche<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB_Boussu2011.jpg&diff=35312 2015-07-22T11:48:50Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB_boussu.jpg&diff=35311 2015-07-22T11:47:12Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB_Mariembourg_2010.jpg&diff=35310 2015-07-22T11:46:32Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB_rectification.jpg&diff=35309 2015-07-22T11:45:04Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB-Mariembourg_bois.jpg&diff=35308 2015-07-22T11:43:50Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB-Mariembourg_deflectors.jpg&diff=35307 2015-07-22T11:41:58Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB_Nismes_chantier.JPG&diff=35306 2015-07-22T11:41:10Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:EB-Nismes.jpg&diff=35305 2015-07-22T11:39:17Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Eau_Blanche_River_(Walphy_-_LIFE_project)&diff=35286 2015-07-16T15:31:30Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.089284099568594, 4.537276402115822<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur, <br /> |Multi-site=Yes<br /> |Project picture=P8030001.JPG<br /> |Picture description=Eau Blanche at Nismes: meandering channel (one year post completion)<br /> |Project summary=n the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Eau Blanche is a medium-size gravel-bed river. Its downstream reach (13 km) is characterized by a low gradient (1-2 ‰), a low energy (specific stream power at the bankfull stage: 20 W/m²) and a wide floodplain (around 600 m). Its channel have been straightened and embanked over the last few centuries (sinuosity index decreased from 1.6 to 1.1), which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Eau Blanche catchment has led to several restoration projects on a total length 6 km. They consist of measures of different ambitions such as reconnecting remnant meander, meandering river channel and habitat diversification. In addition, we undertook locally to improve fish shelters and spawning areas.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> <br /> Hydromorphology was evaluated on three restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). The most positive effects were observed for the most ambitious projects (meandering river channel and reconnecting remnant meander compared to habitat diversification). <br /> <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. As for hydromorphology, we might conclude that the most ambitious rehabilitation measures have resulted in the most positive effects. However, it would be prudent to await the results of the next monitoring surveys (4 years post-completion).<br /> <br /> The geomorphological monitoring has focused on the effect of rehabilitation measures on river dynamic (bedload transport, bank erosion) and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community.<br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to future restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Eau Blanche<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Subcatchment:Eau_Blanche&diff=35284 2015-07-16T15:30:24Z

<p>AlexBE: Created page with &quot;{{Catchment and subcatchment |River basin district=Meuse |Rvr basin=Meuse |River name=Eau Blanche |Area category=100 - 1000 km² |Area exact=259 |Maximum altitude category=200...&quot;</p> <hr /> <div>{{Catchment and subcatchment<br /> |River basin district=Meuse<br /> |Rvr basin=Meuse<br /> |River name=Eau Blanche<br /> |Area category=100 - 1000 km²<br /> |Area exact=259<br /> |Maximum altitude category=200 - 500 m<br /> |Max altitude exact=305<br /> |Subcatchment dominant geology=Shale, limestone<br /> |Ecoregion=Western Plains, <br /> |Subcatchment dominant land cover=Grassland, pasture<br /> |Waterbody ID=MM05R, MM06R, MM07R<br /> |Subcatchment Location=50.089211822268446, 4.537443704903126<br /> }}</div>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Eau_Blanche_River_(Walphy_-_LIFE_project)&diff=35277 2015-07-16T15:06:15Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.089284099568594, 4.537276402115822<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur, <br /> |Multi-site=Yes<br /> |Project picture=P8030001.JPG<br /> |Picture description=Eau Blanche at Nismes: meandering channel (one year post completion)<br /> |Project summary=n the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Eau Blanche is a medium-size gravel-bed river. Its downstream reach (13 km) is characterized by a low gradient (1-2 ‰), a low energy (specific stream power at the bankfull stage: 20 W/m²) and a wide floodplain (around 600 m). Its channel have been straightened and embanked over the last few centuries (sinuosity index decreased from 1.6 to 1.1), which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Eau Blanche catchment has led to several restoration projects on a total length 6 km. They consist of measures of different ambitions such as reconnecting remnant meander, meandering river channel and habitat diversification. In addition, we undertook locally to improve fish shelters and spawning areas.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> <br /> Hydromorphology was evaluated on three restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). The most positive effects were observed for the most ambitious projects (meandering river channel and reconnecting remnant meander compared to habitat diversification). <br /> <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. As for hydromorphology, we might conclude that the most ambitious rehabilitation measures have resulted in the most positive effects. However, it would be prudent to await the results of the next monitoring surveys (4 years post-completion).<br /> <br /> The geomorphological monitoring has focused on the effect of rehabilitation measures on river dynamic (bedload transport, bank erosion) and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community.<br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to future restoration projets in Wallonia.<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Eau_Blanche_River_(Walphy_-_LIFE_project)&diff=35276 2015-07-16T15:05:20Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.089284099568594, 4.537276402115822<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Multi-site=Yes<br /> |Project picture=P8030001.JPG<br /> |Picture description=Eau Blanche at Nismes: meandering channel (one year post completion)<br /> |Project summary=n the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Eau Blanche is a medium-size gravel-bed river. Its downstream reach (13 km) is characterized by a low gradient (1-2 ‰), a low energy (specific stream power at the bankfull stage: 20 W/m²) and a wide floodplain (around 600 m). Its channel have been straightened and embanked over the last few centuries (sinuosity index decreased from 1.6 to 1.1), which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Eau Blanche catchment has led to several restoration projects on a total length 6 km. They consist of measures of different ambitions such as reconnecting remnant meander, meandering river channel and habitat diversification. In addition, we undertook locally to improve fish shelters and spawning areas.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> <br /> Hydromorphology was evaluated on three restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). The most positive effects were observed for the most ambitious projects (meandering river channel and reconnecting remnant meander compared to habitat diversification). <br /> <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. As for hydromorphology, we might conclude that the most ambitious rehabilitation measures have resulted in the most positive effects. However, it would be prudent to await the results of the next monitoring surveys (4 years post-completion).<br /> <br /> The geomorphological monitoring has focused on the effect of rehabilitation measures on river dynamic (bedload transport, bank erosion) and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community.<br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to future restoration projets in Wallonia.<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35253 2015-07-16T14:20:36Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 3.6 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> <br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> <br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community. <br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to future restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Photo intro.jpg<br /> |Caption=Bocq: Rehabilitation projects<br /> }}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Barriers location on the Bocq catchment pre and post Walphy project<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Bocq<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Eau_Blanche_River_(Walphy_-_LIFE_project)&diff=35252 2015-07-16T14:18:53Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.089284099568594, 4.537276402115822<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Multi-site=Yes<br /> |Project picture=P8030001.JPG<br /> |Picture description=Eau Blanche at Nismes: meandering channel (one year post completion)<br /> |Project summary=n the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Eau Blanche is a medium-size gravel-bed river. Its downstream reach (13 km) is characterized by a low gradient (1-2 ‰), a low energy (specific stream power at the bankfull stage: 20 W/m²) and a wide floodplain (around 600 m). Its channel have been straightened and embanked over the last few centuries (sinuosity index decreased from 1.6 to 1.1), which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Eau Blanche catchment has led to several restoration projects on a total length 6 km. They consist of measures of different ambitions such as reconnecting remnant meander, meandering river channel and habitat diversification. In addition, we undertook locally to improve fish shelters and spawning areas. <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>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:P8030001.JPG&diff=35251 2015-07-16T14:18:20Z

<p>AlexBE: AlexBE uploaded a new version of &amp;quot;File:P8030001.JPG&amp;quot;</p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:P8030001.JPG&diff=35248 2015-07-16T12:23:34Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Eau_Blanche_River_(Walphy_-_LIFE_project)&diff=35247 2015-07-16T09:48:54Z

<p>AlexBE: Created page with &quot;{{Case study status |Approval status=Draft }} {{Location |Location=50.089284099568594, 4.537276402115822 }} {{Project overview |Project title=Eau Blanche River (Walphy - LIFE ...&quot;</p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.089284099568594, 4.537276402115822<br /> }}<br /> {{Project overview<br /> |Project title=Eau Blanche River (Walphy - LIFE project)<br /> |Status=Complete<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Multi-site=Yes<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35245 2015-07-16T09:13:33Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 13.3 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> <br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> <br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community. <br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to future restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Photo intro.jpg<br /> |Caption=Bocq: Rehabilitation projects<br /> }}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Barriers location on the Bocq catchment pre and post Walphy project<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Bocq<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35244 2015-07-16T09:10:33Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 13,3 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> <br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> <br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community. <br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to future restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Photo intro.jpg<br /> |Caption=Bocq: Rehabilitation projects<br /> }}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Barriers location on the Bocq catchment pre and post Walphy project<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Bocq<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35243 2015-07-16T09:09:34Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> <br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> <br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 13,3 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> <br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> <br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community. <br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to future restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Photo intro.jpg<br /> |Caption=Bocq: Rehabilitation projects<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Barriers location pre and post Walphy project<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Bocq<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35242 2015-07-16T09:00:18Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 13,3 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community. <br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to futur restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Photo intro.jpg<br /> |Caption=Bocq: Rehabilitation projects<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Barriers location pre and post Walphy project<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Bocq<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:Cartes_obstacles.jpg&diff=35241 2015-07-16T08:59:39Z

<p>AlexBE: AlexBE uploaded a new version of &amp;quot;File:Cartes obstacles.jpg&amp;quot;</p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:Cartes_obstacles.jpg&diff=35240 2015-07-16T08:56:56Z

<p>AlexBE: AlexBE uploaded a new version of &amp;quot;File:Cartes obstacles.jpg&amp;quot;: Reverted to version as of 08:55, 16 July 2015</p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:Cartes_obstacles.jpg&diff=35239 2015-07-16T08:55:41Z

<p>AlexBE: AlexBE uploaded a new version of &amp;quot;File:Cartes obstacles.jpg&amp;quot;: Reverted to version as of 08:54, 16 July 2015</p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:Cartes_obstacles.jpg&diff=35238 2015-07-16T08:55:23Z

<p>AlexBE: AlexBE uploaded a new version of &amp;quot;File:Cartes obstacles.jpg&amp;quot;</p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:Cartes_obstacles.jpg&diff=35237 2015-07-16T08:54:21Z

<p>AlexBE: AlexBE uploaded a new version of &amp;quot;File:Cartes obstacles.jpg&amp;quot;</p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35236 2015-07-16T08:40:56Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 13,3 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> <br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> <br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community. <br /> <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> <br /> - Finally, we hope the project to give a boost to futur restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Photo intro.jpg<br /> |Caption=Bocq: Rehabilitation projects<br /> }}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Bocq catchment: Barriers location<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Bocq<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35235 2015-07-16T08:39:03Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 13,3 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc.<br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> |Lessons learn=- Despite the short period of time (5 years) of this project, we realized afterwards the importance of achieving a multi-scale assessment and an initial state (pre-restoration) prior to restoration work.<br /> - We implemented a wide range of demonstration techniques and we compared them in terms of cost-effectiveness (see the Manual of River Restoration Techniques on http://www.walphy.be/index.php?page=guide-technique).<br /> - Most of the restoration projects could be implemented without acquiring the land but rather through negociations with the local community. This underlines the importance of engaging the local community. <br /> - The time span of the project allowed us only 1-2 years of monitoring (post-restoration). Fortunately, the SPW funded a long-term monitoring (&gt;3 years), which is crucial for accurate evaluation of success, especially for biological indicators.<br /> - Finally, we hope the project to give a boost to futur restoration projets in Wallonia.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Photo intro.jpg<br /> |Caption=Bocq: Rehabilitation projects<br /> }}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Bocq catchment: Barriers location<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Bocq<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35232 2015-07-15T15:51:47Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 13,3 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc. <br /> <br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Photo intro.jpg<br /> |Caption=Bocq: Rehabilitation projects<br /> }}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Bocq catchment: Barriers location<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Bocq<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Subcatchment:Bocq&diff=35231 2015-07-15T15:49:28Z

<p>AlexBE: Created page with &quot;{{Catchment and subcatchment |River basin district=Meuse |Rvr basin=Meuse |River name=Bocq |Area category=100 - 1000 km² |Area exact=237 |Maximum altitude category=200 - 500 ...&quot;</p> <hr /> <div>{{Catchment and subcatchment<br /> |River basin district=Meuse<br /> |Rvr basin=Meuse<br /> |River name=Bocq<br /> |Area category=100 - 1000 km²<br /> |Area exact=237<br /> |Maximum altitude category=200 - 500 m<br /> |Max altitude exact=305<br /> |Subcatchment dominant geology=Limestone, sandstone<br /> |Ecoregion=Western Plains, <br /> |Subcatchment dominant land cover=Grassland, cropland, forest<br /> |Waterbody ID=MM28R and MM30R<br /> |Subcatchment Location=50.32244741143264, 5.005525723099709<br /> }}</div>

AlexBE https://restorerivers.eu/wiki/index.php?title=Subcatchment:Meuse&diff=35230 2015-07-15T15:45:31Z

<p>AlexBE: Undo revision 35229 by AlexBE (talk)</p> <hr /> <div>{{Catchment and subcatchment<br /> |River basin district=Meuse<br /> |Rvr basin=Meuse<br /> |River name=Meuse<br /> |Area category=more than 10000 km²<br /> |Area exact=465<br /> |Maximum altitude category=100 - 200 m<br /> |Max altitude exact=200<br /> |Subcatchment dominant geology=chalk and loess<br /> |Ecoregion=Western Plains,<br /> |Subcatchment dominant land cover=Intensive agriculture,Urban<br /> }}</div>

AlexBE https://restorerivers.eu/wiki/index.php?title=Subcatchment:Meuse&diff=35229 2015-07-15T15:40:50Z

<p>AlexBE: </p> <hr /> <div>{{Catchment and subcatchment<br /> |River basin district=Meuse<br /> |Rvr basin=Meuse<br /> |River name=Bocq<br /> |Area category=100 - 1000 km²<br /> |Area exact=237<br /> |Maximum altitude category=200 - 500 m<br /> |Max altitude exact=305<br /> |Subcatchment dominant geology=Limestones and sandstones<br /> |Ecoregion=Western Plains,<br /> |Subcatchment dominant land cover=Grassland, cropland and forest<br /> |Waterbody ID=MM28R and MM30R<br /> |Subcatchment Location=50.32314739071531, 5.00474888831377<br /> }}</div>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35228 2015-07-15T15:27:59Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 13,3 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc. <br /> <br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Photo intro.jpg<br /> |Caption=Bocq: Rehabilitation projects<br /> }}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Bocq catchment: Barriers location<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<br /> }}<br /> {{Image gallery end}}<br /> {{Toggle button}}<br /> {{Toggle content start}}<br /> {{Case study subcatchment<br /> |Subcatchment=Meuse<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>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35227 2015-07-15T15:17:09Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 13,3 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc. <br /> <br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Photo intro.jpg<br /> |Caption=Bocq: Rehabilitation projects<br /> }}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Bocq catchment: Barriers location<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<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 /> {{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>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:Photo_intro.jpg&diff=35226 2015-07-15T15:16:35Z

<p>AlexBE: AlexBE uploaded a new version of &amp;quot;File:Photo intro.jpg&amp;quot;</p> <hr /> <div></div>

AlexBE https://restorerivers.eu/wiki/index.php?title=Case_study:Bocq_river_(Walphy_-_LIFE_project)&diff=35225 2015-07-15T15:15:23Z

<p>AlexBE: </p> <hr /> <div>{{Case study status<br /> |Approval status=Draft<br /> }}<br /> {{Location<br /> |Location=50.3225058504644, 5.0085898116230965<br /> }}<br /> {{Project overview<br /> |Status=Complete<br /> |Project web site url=walphy.be<br /> |Themes=Habitat and biodiversity, Hydromorphology, Monitoring<br /> |Country=Belgium<br /> |Main contact forename=Alexandre<br /> |Main contact surname=Peeters<br /> |Main contact id=AlexBE<br /> |Contact organisation=Service Public de Wallonie (SPW)<br /> |Contact organisation url=walphy.be<br /> |Partner organisations=University of Liege, University of Namur<br /> |Multi-site=Yes<br /> |Project picture=Photo intro.jpg<br /> |Picture description=Overview of the restoration projects undertaken on the Bocq catchment<br /> |Project summary=In the context of fulfilling the Water Framework Directive requirements, the LIFE+ project Walphy allowed experimental restoration projects to be undertaken on two medium-size catchments of the Meuse basin in Wallonia (Belgium) between 2009 and 2014: the Bocq catchment and the Eau Blanche Catchment. This five-year long project was funded by the European Union and the Service Public de Wallonie (SPW). It involved three institutions: the SPW was in charge of the experimental restoration projects while the Universities of Liège and Namur were responsible for evaluating the success of the restoration projects.<br /> The Bocq is a medium-size gravel-bed river which has been strongly impacted by numerous barriers, impeding the free movement of fish and bedload (an average of one weir every 1.8 km). In addition, some river reaches have been straightened over the last few centuries, which has led to significant loss of habitat.<br /> A multi-scale assessment of hydromorphological conditions of the Bocq catchment has led to a large-scale restoration project implemented mainly in the lower and middle course of the Bocq River itself. 22 barriers (mainly old weirs of an average height of 1.35 m) have been removed or modified in order to reconnect the Bocq with the Meuse and to improve access to areas of spawning grounds. To date, only two barriers remain in the middle Bocq. In addition, 13,3 km of modified reaches were improved through a wide range of rehabilitation techniques such as designing sinuous channels, re-instating spawning grounds, improving fish shelters, improving culvert bed, etc. <br /> <br /> |Monitoring surveys and results=The success of the restoration projects was evaluated on the basis of a multi-disciplinary monitoring.<br /> Hydromorphology was evaluated on five restored sites using microhabitat survey and three indices of physical quality. For all sites, hydromorphology was significantly improved 10-20 months post-rehabilitation, through the diversification of flows (depth, substrate, water velocity) and the creation of habitats (e.g. fish shelters, spawning areas and woody debris). <br /> Biological quality, based on macroinvertebrates and fish communities, has generally showed a status quo or a slight increase 10-20 months post-completion. Nevertheless, ambitious rehabilitation measures such as weir removal and meanders restoration have resulted in the most positive effects, while less ambitious measures such as habitat diversification have led to more contrasted results. In addition, restoration of the longitudinal connectivity was beneficial for Grayling, designated as Natura 2000 species, and for eels, concerned with the Benelux convention.<br /> The geomorphological monitoring has focused on the effect of barriers on sediment transport and the effectiveness of spawning gravel rehabilitation.<br /> }}<br /> {{Image gallery}}<br /> {{Case study image<br /> |File name=Cartes obstacles.jpg<br /> |Caption=Bocq catchment: Barriers location<br /> }}<br /> {{Case study image<br /> |File name=Aminthe.jpg<br /> |Caption=Bocq at Yvoir: Pre-barrages<br /> }}<br /> {{Case study image<br /> |File name=PB250037 stitch.jpg<br /> |Caption=Bocq at Spontin: Weir removal<br /> }}<br /> {{Case study image<br /> |File name=IMG 0046 stitch.jpg<br /> |Caption=Bocq at Braibant: Bypass channel<br /> }}<br /> {{Case study image<br /> |File name=Bocq Yvoir14oct-2011 27.jpg<br /> |Caption=Bocq at Yvoir: Fish passage<br /> }}<br /> {{Case study image<br /> |File name=P9030117.JPG<br /> |Caption=Leignon at Ciney: Habitat diversification<br /> }}<br /> {{Case study image<br /> |File name=IMG 5616.JPG<br /> |Caption=Bocq at Emptinale: Designing sinuous channel<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 /> {{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>

AlexBE https://restorerivers.eu/wiki/index.php?title=File:Bocq_Yvoir14oct-2011_27.jpg&diff=35224 2015-07-15T15:13:59Z

<p>AlexBE: </p> <hr /> <div></div>

AlexBE