Case study:Erbistock Weir Removal

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Location: 52° 58' 22.84" N, 2° 57' 45.94" W

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Project overview

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Status	Complete
Project web site	http://naturalresources.wales/LIFEDeeRiver?lang=en
Themes	Fisheries, Habitat and biodiversity, Hydromorphology
Country	Wales
Main contact forename	Josh
Main contact surname	Robins
Main contact user ID	User:JoshRRC
Contact organisation
Contact organisation web site
Partner organisations
Parent multi-site project	Case_study:LIFE Dee River
This is a parent project encompassing the following projects	No

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Project summary

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The removal of the Erbistock weir marks a significant milestone for the EU-funded LIFE Dee River programme, offering a new era of ecological restoration for the River Dee. The completed work has already shown promising signs, with improvements being seen in the river's morphology, marking a return to its more natural state.

The removal of the weir has opened up an unimpeded passage for all fish species within the Dee, enhancing biodiversity and supporting the river’s ecosystems. Early observations indicate notable changes in the river's flow and sediment distribution, which are expected to further benefit local wildlife and improve overall river quality.

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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