Case study:Tolka Valley Park at Finglas - Revision history

Alexrrc at 14:54, 2 January 2019

2019-01-02T14:54:24Z

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	{{Measures		{{Measures
	\|~~Floodplain / River corridor~~=~~Removal and~~ modification ~~of weirs~~		\|Bank and bed modifications measure=Weir removal, Weir modification,
	\|Social measures=Increased number of facilities		\|Social measures=Increased number of facilities
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NickRRC at 13:06, 20 September 2013

2013-09-20T13:06:38Z

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	\|Approval status=~~Draft~~		\|Approval status=Approved
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SFW Rob at 17:58, 6 September 2013

2013-09-06T17:58:00Z

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	Restoration overview: The re-colonisation by young, wild Atlantic salmon was spotted by Inland Fisheries Ireland in 3 locations in the Tolka. This is attributed mainly to the removal and modification of weirs as part of the “Tolka River's flood relief scheme” to allow migratory species, such as salmon, to migrate along the river corridor. As salmon can only survive in clean water, their presence also reflects efforts to reduce pollution levels in the river and effectiveness of the restoration measures aiming to improve water quality. Dublin now has 3 rivers producing wild salmon stocks (the Liffey, Dodder and Tolka), making it the only European capital city to hold such an accolade.		Restoration overview: The re-colonisation by young, wild Atlantic salmon was spotted by Inland Fisheries Ireland in 3 locations in the Tolka. This is attributed mainly to the removal and modification of weirs as part of the “Tolka River's flood relief scheme” to allow migratory species, such as salmon, to migrate along the river corridor. As salmon can only survive in clean water, their presence also reflects efforts to reduce pollution levels in the river and effectiveness of the restoration measures aiming to improve water quality. Dublin now has 3 rivers producing wild salmon stocks (the Liffey, Dodder and Tolka), making it the only European capital city to hold such an accolade.
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LauraRRC at 09:21, 2 August 2013

2013-08-02T09:21:35Z

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	\|Contact organisation url=www.dublincity.ie		\|Contact organisation url=www.dublincity.ie
	\|Multi-site=Yes		\|Multi-site=Yes
	\|Project summary=The Tolka Valley Park was constructed in 1999-2000 to address misconnections and domestic effluents as a result of poor management in the area. The project aimed to attenuate pollutants and reduce malodours in order to enhance the amenity value of the site by creating of a new park with wetland and ponds for local biodiversity and people. A pilot study was completed with insigths to develop the project plan for the Tolka Valley Park.		\|Project summary=The Tolka Valley Park along the River Tolka was constructed in 1999-2000 to address misconnections and domestic effluents as a result of poor management in the area. The project aimed to attenuate pollutants and reduce malodours in order to enhance the amenity value of the site by creating of a new park with wetland and ponds for local biodiversity and people. A pilot study was completed with insigths to develop the project plan for the Tolka Valley Park.

	Restoration measures included riparian planting to slow flows and prevent erosion, installation of geotextile to help the drainage of paths, construction of wetlands and sustainable urban drainage ponds, remedial planting to take up leachates and creation of new habitat. Landfill management issues addressed were on-going leachate introducing gravel filtration strips and vegetation buffers, as well as associated issues (i.e. methane, anaerobic conditions and methane issues). Creation of the wetlands was a 3 stage process. Actions aimed to attenuate and treat road runoff external to site and capture runoff within the site while controlling flooding. The new wetlands provide more habitat diversity for wildlife with visual interest for people.		Restoration measures included riparian planting to slow flows and prevent erosion, installation of geotextile to help the drainage of paths, construction of wetlands and sustainable urban drainage ponds, remedial planting to take up leachates and creation of new habitat. Landfill management issues addressed were on-going leachate introducing gravel filtration strips and vegetation buffers, as well as associated issues (i.e. methane, anaerobic conditions and methane issues). Creation of the wetlands was a 3 stage process. Actions aimed to attenuate and treat road runoff external to site and capture runoff within the site while controlling flooding. The new wetlands provide more habitat diversity for wildlife with visual interest for people.

	Restoration overview: The re-colonisation by young, wild Atlantic salmon was spotted by Inland Fisheries Ireland in 3 locations in the Tolka. This is attributed mainly to the removal and modification of weirs as part of the “Tolka River's flood relief scheme” to allow migratory species, such as salmon, to migrate along the river corridor. As salmon can only survive in clean water, their presence also reflects efforts to reduce pollution levels in the river and effectiveness of the restoration measures aiming to improve water quality. Dublin now has 3 rivers producing wild salmon stocks (the Liffey, Dodder and Tolka), making it the only European capital city to hold such an accolade.		Restoration overview: The re-colonisation by young, wild Atlantic salmon was spotted by Inland Fisheries Ireland in 3 locations in the Tolka. This is attributed mainly to the removal and modification of weirs as part of the “Tolka River's flood relief scheme” to allow migratory species, such as salmon, to migrate along the river corridor. As salmon can only survive in clean water, their presence also reflects efforts to reduce pollution levels in the river and effectiveness of the restoration measures aiming to improve water quality. Dublin now has 3 rivers producing wild salmon stocks (the Liffey, Dodder and Tolka), making it the only European capital city to hold such an accolade.

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LauraRRC at 09:12, 2 August 2013

2013-08-02T09:12:05Z

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	\|Contact organisation url=www.dublincity.ie		\|Contact organisation url=www.dublincity.ie
	\|Multi-site=Yes		\|Multi-site=Yes
	\|Project summary=~~Constructed~~ 1999-2000 to address misconnections and domestic effluents. ~~Restoration actions~~ aimed to attenuate pollutants and reduce malodours to enhance the amenity value of the ~~pond~~ by creating of a new wetland for local biodiversity. A pilot study was completed ~~before~~ the ~~site was restored~~.		\|Project summary=The Tolka Valley Park was constructed in 1999-2000 to address misconnections and domestic effluents as a result of poor management in the area. The project aimed to attenuate pollutants and reduce malodours in order to enhance the amenity value of the site by creating of a new park with wetland and ponds for local biodiversity and people. A pilot study was completed with insigths to develop the project plan for the Tolka Valley Park.

			Restoration measures included riparian planting to slow flows and prevent erosion, installation of geotextile to help the drainage of paths, construction of wetlands and sustainable urban drainage ponds, remedial planting to take up leachates and creation of new habitat. Landfill management issues addressed were on-going leachate introducing gravel filtration strips and vegetation buffers, as well as associated issues (i.e. methane, anaerobic conditions and methane issues). Creation of the wetlands was a 3 stage process. Actions aimed to attenuate and treat road runoff external to site and capture runoff within the site while controlling flooding. The new wetlands provide more habitat diversity for wildlife with visual interest for people.

			Restoration overview: The re-colonisation by young, wild Atlantic salmon was spotted by Inland Fisheries Ireland in 3 locations in the Tolka. This is attributed mainly to the removal and modification of weirs as part of the “Tolka River's flood relief scheme” to allow migratory species, such as salmon, to migrate along the river corridor. As salmon can only survive in clean water, their presence also reflects efforts to reduce pollution levels in the river and effectiveness of the restoration measures aiming to improve water quality. Dublin now has 3 rivers producing wild salmon stocks (the Liffey, Dodder and Tolka), making it the only European capital city to hold such an accolade.

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LauraRRC at 09:04, 2 August 2013

2013-08-02T09:04:50Z

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	\|Specific mitigation=pollution from landfill site		\|Specific mitigation=pollution from landfill site
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	{{Measures}}		{{Measures
			\|Floodplain / River corridor=Removal and modification of weirs
			\|Social measures=Increased number of facilities
			}}
	{{Hydromorphological quality elements header}}		{{Hydromorphological quality elements header}}
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LauraRRC at 09:02, 2 August 2013

2013-08-02T09:02:53Z

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LauraRRC at 09:02, 2 August 2013

2013-08-02T09:02:37Z

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	\|Specific mitigation=pollution ~~from landfill site~~		\|Specific mitigation=pollution
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LauraRRC at 09:02, 2 August 2013

2013-08-02T09:02:21Z

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			\|Specific mitigation=pollution from landfill site
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LauraRRC at 09:01, 2 August 2013

2013-08-02T09:01:24Z

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	{{Additional Documents end}}		{{Additional Documents end}}
	{{Additional links and references header}}		{{Additional links and references header}}
			{{Additional links and references
			\|Link=www.dublincity.ie/RecreationandCulture/DublinCityParks/VisitaPark/Pages/TolkaValleyPark.aspx
			\|Description=Dublin City Council local parks: the Tolka Valley Park
			}}
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	{{Supplementary Information}}		{{Supplementary Information}}