Case study:Rodley weir by pass channel - Revision history

UlrikaRRC at 14:03, 24 July 2014

2014-07-24T14:03:13Z

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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.therrc.co.uk/newsletters/rrn_43.pdf
			\|Description=RRC newsletter issue 43 including an article on the Rodley weir by-pass channel
			}}
	{{Additional links and references footer}}		{{Additional links and references footer}}
	{{Supplementary Information}}		{{Supplementary Information}}
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NickRRC at 14:31, 24 June 2014

2014-06-24T14:31:02Z

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	\|Other motivation=Water quality		\|Other motivation=Water quality
	}}		}}
	{{Measures}}		{{Measures
			\|Bank and bed modifications measure=Building nature-like bypass channel,
			\|Other technical measure=Created bird hides and pond banks on Rodley Nature Reserve using site-won materials
			}}
	{{Hydromorphological quality elements header}}		{{Hydromorphological quality elements header}}
	{{End table}}		{{End table}}

NickRRC at 14:28, 24 June 2014

2014-06-24T14:28:37Z

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	\|Monitoring Other contact surname=Turner		\|Monitoring Other contact surname=Turner
	}}		}}
	{{Motivations}}		{{Motivations
			\|Specific mitigation=Barriers to fish migration,
			\|Hydromorphological quality elements=Continuity for organisms, Continuity of sediment transport, Channel pattern/planform, Quantity & dynamics of flow, Substrate conditions, Width & depth variation,
			\|Biological quality elements=Fish,
			\|Other motivation=Water quality
			}}
	{{Measures}}		{{Measures}}
	{{Hydromorphological quality elements header}}		{{Hydromorphological quality elements header}}

Dr Turner at 10:37, 12 November 2013

2013-11-12T10:37:25Z

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	\|Works and supervision Lead organisation=MMB		\|Works and supervision Lead organisation=MMB
	\|Post-project1 management and maintenance cost category=1 - 10 k€		\|Post-project1 management and maintenance cost category=1 - 10 k€
	\|Post-project management and maintenance Lead organisation=~~Yokshire~~ water		\|Post-project management and maintenance Lead organisation=Yorkshire water
	\|Post-project management and maintenance Other contact forename=Kathryn		\|Post-project management and maintenance Other contact forename=Kathryn
	\|Post-project management and maintenance Other contact surname=Turner		\|Post-project management and maintenance Other contact surname=Turner

Dr Turner at 10:37, 12 November 2013

2013-11-12T10:37:12Z

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 |Species=Otter, European eel, brown trout, salmon,
 }}
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+{{Project background
 {{Motivations}}
 {{Measures}}

Ascarr at 11:50, 11 November 2013

2013-11-11T11:50:07Z

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	{{Site		{{Site
	\|Name=Rodley Nature Reserve		\|Name=Rodley Nature Reserve
			\|WFD water body code=GB104027063032
	\|WFD water body name=River Aire		\|WFD water body name=River Aire
	\|Heavily modified water body=No		\|Heavily modified water body=No
	\|Protected species present=Yes		\|Protected species present=Yes
	\|Invasive species present=Yes		\|Invasive species present=Yes
	\|Species=Otter, European eel, brown trout, salmon,		\|Species=Otter, European eel, brown trout, salmon,
	}}		}}
	{{Project background}}		{{Project background}}

Ascarr at 11:49, 11 November 2013

2013-11-11T11:49:01Z

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	{{Case study subcatchment}}		{{Case study subcatchment
			\|Subcatchment=Aire from Esholt STW to River Calder
			}}
	{{Site		{{Site
	\|Name=Rodley Nature Reserve		\|Name=Rodley Nature Reserve

Ascarr at 11:43, 11 November 2013

2013-11-11T11:43:56Z

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	{{Project overview		{{Project overview
	\|Status=In progress		\|Status=In progress
	\|Project web site url=~~http://~~www.yorkshirewater.com/our-environment/biodiversity/river-restoration-programme.aspx		\|Project web site url=www.yorkshirewater.com/our-environment/biodiversity/river-restoration-programme.aspx
	\|Themes=Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Water quality, Urban		\|Themes=Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology, Monitoring, Social benefits, Water quality, Urban
	\|Country=England		\|Country=England
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	\|Main contact id=Dr Turner		\|Main contact id=Dr Turner
	\|Contact organisation=Yorkshire Water		\|Contact organisation=Yorkshire Water
	\|Contact organisation url=~~http://~~www.yorkshirewater.com/our-environment/biodiversity.aspx		\|Contact organisation url=www.yorkshirewater.com/our-environment/biodiversity.aspx
	\|Name of parent multi-site project=Yorkshire Water River Restoration		\|Name of parent multi-site project=Yorkshire Water River Restoration
	\|Multi-site=No		\|Multi-site=No

Ascarr at 11:41, 11 November 2013

2013-11-11T11:41:34Z

NickRRC at 09:55, 8 November 2013

2013-11-08T09:55:18Z

← Older revision		Revision as of 09:55, 8 November 2013
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	{{Case study status		{{Case study status
	\|Approval status=~~Draft~~		\|Approval status=Approved
	}}		}}
	{{Location		{{Location

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	\|Name of parent multi-site project=Yorkshire Water River Restoration		\|Name of parent multi-site project=Yorkshire Water River Restoration
	\|Multi-site=No		\|Multi-site=No
			\|Project picture=Arup7whole pass resized2.JPG
	\|Project summary=Addressing barriers to fish passage: The Rodley weir by pass channel.		\|Project summary=Addressing barriers to fish passage: The Rodley weir by pass channel.

	Water industry investment has transformed the water quality of our rivers over the last 25 years and morphology is now one of the significant challenges to return river life to as natural condition as they can be. Yorkshires industrial legacy of many modifications and weirs in our working rivers presents a significant challenge in meeting the Water Framework Directive (WFD)requirements for fish passage in main rivers, as well as the Humber River Basin Plan goal of having sustainable populations of migratory fish in all Yorkshire rivers by 2021. In the last three years Yorkshire Water has undertaken several projects designed to investigate how to tackle these barriers and other water quality issues. Rodley weir bypass channel is the first of these to be completed.		Water industry investment has transformed the water quality of our rivers over the last 25 years and morphology is now one of the significant challenges to return river life to as natural condition as they can be. Yorkshires industrial legacy of many modifications and weirs in our working rivers presents a significant challenge in meeting the Water Framework Directive (WFD)requirements for fish passage in main rivers, as well as the Humber River Basin Plan goal of having sustainable populations of migratory fish in all Yorkshire rivers by 2021. In the last three years Yorkshire Water has undertaken several projects designed to investigate how to tackle these barriers and other water quality issues. Rodley weir bypass channel is the first of these to be completed.

	Rodley weir sits in the main channel of the River Aire, it has a head of 1.8m and presents a significant barrier to the movement both of migratory species, such as brown trout, lampreys, salmon and European eels, and other course fish movement within the river.		Rodley weir sits in the main channel of the River Aire, it has a head of 1.8m and presents a significant barrier to the movement both of migratory species, such as brown trout, lampreys, salmon and European eels, and other course fish movement within the river.

	This weir was identified as one of around 11 key barriers to fish movement in the Aire by the Environment Agency and Aire action group , the others being Chapel Haddlesey Weir, Knottingley Weir, Knostrop and Crown Point Weirs (Leeds), Armley Mills Weir (Leeds), St Ann’s Mills and Burley Mills Weirs (Kirkstall, Leeds), Salts Mill Weir (Bradford), Hirst Mill Weir (Saltaire, Bradford), Systagenix Weir (Gargrave). Projects to address these barriers are under development by multiple agencies including the Environment Agency, Canal and Rivers Trust, Leeds and Bradford Councils, the Bradford amateur rowing club, and Aire rivers trust.		This weir was identified as one of around 11 key barriers to fish movement in the Aire by the Environment Agency and Aire action group , the others being Chapel Haddlesey Weir, Knottingley Weir, Knostrop and Crown Point Weirs (Leeds), Armley Mills Weir (Leeds), St Ann’s Mills and Burley Mills Weirs (Kirkstall, Leeds), Salts Mill Weir (Bradford), Hirst Mill Weir (Saltaire, Bradford), Systagenix Weir (Gargrave). Projects to address these barriers are under development by multiple agencies including the Environment Agency, Canal and Rivers Trust, Leeds and Bradford Councils, the Bradford amateur rowing club, and Aire rivers trust.

	Site ownership		Site ownership
	The Rodley weir is bounded on one side by Rodley Nature Reserve and on the other by privately owned land. Yorkshire water owns the Rodley Nature Reserve land which was leased to the Rodley Nature Reserve following the reduction in size of the Rodley waste water treatment works. Ownership of the weir is split between the two sides of the river. As the private landowner declined to discuss the project, removal of the weir had to be ruled out . The options were then either an on-weir fish pass on the Yorkshire Water side, such as a Larinier Super Active Baffle Fish pass or a by-pass channel.		The Rodley weir is bounded on one side by Rodley Nature Reserve and on the other by privately owned land. Yorkshire water owns the Rodley Nature Reserve land which was leased to the Rodley Nature Reserve following the reduction in size of the Rodley waste water treatment works. Ownership of the weir is split between the two sides of the river. As the private landowner declined to discuss the project, removal of the weir had to be ruled out . The options were then either an on-weir fish pass on the Yorkshire Water side, such as a Larinier Super Active Baffle Fish pass or a by-pass channel.
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	We set up a fish monitoring project which placed solar powered data loggers in the channel to pick up fish tagged this summer.		We set up a fish monitoring project which placed solar powered data loggers in the channel to pick up fish tagged this summer.

	We are very proud of our achievement on this site and the delivery of an innovative solution to the problem posed by Rodley weir and meeting the WFD requirement for fish passage that supports a much higher biodiversity than any on-weir solution. It forms part of our commitment to “taking responsibility of the water environment for good” and our investigations into how to meet the regulatory requirements for healthy aquatic environments without putting up customers’ bills.		We are very proud of our achievement on this site and the delivery of an innovative solution to the problem posed by Rodley weir and meeting the WFD requirement for fish passage that supports a much higher biodiversity than any on-weir solution. It forms part of our commitment to “taking responsibility of the water environment for good” and our investigations into how to meet the regulatory requirements for healthy aquatic environments without putting up customers’ bills.

	\|Monitoring surveys and results=Preliminary data from 88 tagged trout show that fish can find and navigate the pass. We will review the data in spring 2014 to assess fish behviour in the channel.		\|Monitoring surveys and results=Preliminary data from 88 tagged trout show that fish can find and navigate the pass. We will review the data in spring 2014 to assess fish behviour in the channel.

	The channel has colonised well with the hard work of Rodley Nature Reserve volunteers who have hand pulled Himalayan balsam to allow more native plants to flourish. The visitors and volunteers of the reserver report frequent sightings of dippers and grey wagtais and a male otter has moved into the site and is using the channel as a hunting station - indeed some of our tagged fish may have been dinner.		The channel has colonised well with the hard work of Rodley Nature Reserve volunteers who have hand pulled Himalayan balsam to allow more native plants to flourish. The visitors and volunteers of the reserver report frequent sightings of dippers and grey wagtais and a male otter has moved into the site and is using the channel as a hunting station - indeed some of our tagged fish may have been dinner.
	\|Lessons learn=Equipment and materials are highly vulnerable to storms during construcion and their storage must account for 100 yr storm events.		\|Lessons learn=Equipment and materials are highly vulnerable to storms during construcion and their storage must account for 100 yr storm events.
	}}		}}
	{{Image gallery}}		{{Image gallery}}