Case study:Kirkstall Valley Weir Fish Passes Project

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Location: 53° 48' 44.13" N, 1° 36' 0.82" W

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Project overview

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Status	In progress
Project web site
Themes	Environmental flows and water resources, Fisheries, Habitat and biodiversity, Social benefits, Urban
Country	England
Main contact forename	Kevin
Main contact surname	Sunderland
Main contact user ID
Contact organisation	The Aire Rivers Trust
Contact organisation web site
Partner organisations	Environment Agency, Canoe England, Aire Action Leeds, Leeds City Council and the West Yorkshire CARP Group
Parent multi-site project
This is a parent project encompassing the following projects	No

River Aire - St Ann's Mill Weir c.The Aire Rivers Trust

Project summary

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The outcome of the project is the improvement for fish passage around Kirkstall Island on the River Aire in Leeds by provision of fish passes at St Ann's Mills weir and Burley Mills weir. The fish passes will also benefit the other species which already inhabit the river but are prevented from reaching optimal spawning and feeding grounds.

The weirs are both situated on the left side channel (looking downstream) of Kirkstall Island. There are two weirs on the right side channel but careful consideration has led to the belief that fish will use the left side where the heavier flow is located.

Monitoring surveys and results

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Map of the area

River Aire - Burley Mills c.The Aire Rivers Trust

Fish pass site at Burley Mills Weir (before construction - July 2013) c.The Aire Rivers Trust

Burley Mills Weir (before construction - July 2013) c.The Aire Rivers Trust

Completed fish pass (June 2014) at St Ann's Mills, River Aire c.The Aire Rivers Trust

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Humber River basin Aire and Calder Subcatchment River name Aire from Esholt STW to River Calder Area category 100 - 1000 km² Area (km2) Maximum altitude category 200 - 500 m Maximum altitude (m) 233233 m <br />0.233 km <br />23,300 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Suburban Waterbody ID GB104027063032 Other case studies in this subcatchment: Rodley weir by pass channel Site Edit site Name WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Reference morphology Desired post project morphology Heavily modified water body National/international site designation Local/regional site designations Protected species present Invasive species present Species of interest Dominant hydrology Dominant substrate River corridor land use Average bankfull channel width category Average bankfull channel width (m) Average bankfull channel depth category Average bankfull channel depth (m) Mean discharge category Mean annual discharge (m3/s) Average channel gradient category Average channel gradient Average unit stream power (W/m2) Project background Edit project background Reach length directly affected (m) Project started 2012/08/09 Works started 2014/03/25 Works completed 2014/07/31 Project completed Total cost category 100 - 500 k€ Total cost (k€) slightly under 500"slightlyunder" is not declared as a valid unit of measurement for this property. Benefit to cost ratio Funding sources Defra Catchment Restoration Fund Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design Fishtek Consulting Toby Coe Stakeholder engagement and communication Works and works supervision Bailey Construction (NW) Ltd John Bailey Post-project management and maintenance Leeds City Council Peter Davis Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Barriers to fish migration, Impoundments (not hydropower) Hydromorphology Biology Fish: Species composition Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor The construction of two fish passes Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Community involvement Other Monitoring Hydromorphological quality elements Edit Hydromorphological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Biological quality elements Edit biological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Physico-chemical quality elements Edit Physico-chemical quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Any other monitoring, e.g. social, economic Edit Other responses Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Monitoring documents Upload monitoring documents RRC monitoring table - Kirkstall Additional documents and videos Upload additional documents CRF Project briefing note - Kirkstall Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information