Case study:Guphill Brook Riverine Enhancement

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Location: 52° 24' 43.15" N, 1° 33' 31.22" W

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Project overview

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Status	In progress
Project web site
Themes	Fisheries, Flood risk management, Habitat and biodiversity, Hydromorphology, Social benefits, Water quality, Urban
Country	England
Main contact forename	Tim
Main contact surname	Precious
Main contact user ID	User:TimPrecious
Contact organisation	Warwickshire Wildlife Trust
Contact organisation web site	http://www.warwickshirewildlifetrust.org.uk/
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

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Project summary

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This river enhancement project is working to reconnect the river once more with its floodplain and to create associated wetland features that have been removed or lost from our rivers.

The project has created multiple online backwater refuge pools to provide fish and water vole with areas of slack water and cover in times of high flow. Regrading of 4 inside meander banks has been undertaken to improve the hydromorphology of this over deepened and channelised river by increasing gravel deposition, light levels and ultimately macrophytic growth. These outcomes will provide: increased spawning area for fish, increased habitat for invertebrates e.g mayfly, increased cover for fish from predation and cover and food for water vole.

The pools aid in improving water quality by assisting in the drop out of pollutants which are washed from the busy A45 road in times of heavy rainfall.

The online pools provide some additional flood risk reduction downstream by holding back water in times of above average flows.

Lowland meadow will be created on excavated soil bunds and a 200m wetland meadow buffer strip is establishing alongside the brook after being stripped of topsoil and sown with a seed mix in Spring 2016.

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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