Case study:Cain weir removal

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Location: 52° 46' 2.00" N, 3° 16' 1.36" 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, Water quality
Country	Wales
Main contact forename	Lisa
Main contact surname	Barlow
Main contact user ID	User:Lisabarlow
Contact organisation	Severn Rivers Trust
Contact organisation web site	http://severnriverstrust.com
Partner organisations
Parent multi-site project	River Friendly Severn
This is a parent project encompassing the following projects	No

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Project summary

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Working with Stadco Llanfyllin under the River Friendly Severn project, we have identified possible habitat works on their site. The partial weir removal was part of a project which included bird boxes, bat boxes and some work to improve the maintenance of a SUDS.

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Lessons learnt

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Working with a local contractor Seed and Spur, we were able to complete the works within the timescale and under budget of £750 in addition to SRT staff costs to prepare the consents, engage the business and monitor the work.

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Catchment and subcatchment Select a catchment/subcatchment 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 Works started Works completed Project completed Total cost category Total cost (k€) Benefit to cost ratio Funding sources Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design Stakeholder engagement and communication Works and works supervision Post-project management and maintenance Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Hydromorphology Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) 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 Additional documents and videos Upload additional documents Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information