Case study:SHerston River IMProvement (SHRIMP) Project

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Location: 51° 34' 8.45" N, 2° 12' 58.61" W

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Project overview

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Status	Complete
Project web site
Themes	Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology, Land use management - agriculture, Monitoring, Social benefits, Water quality
Country	England
Main contact forename	Harriet
Main contact surname	Alvis
Main contact user ID	User:H.alv
Contact organisation	Bristol Avon Rivers Trust
Contact organisation web site	http://www.bristolavonriverstrust.org
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

Sherston River Project

Project summary

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The project worked on a site containing a public footpath popular with local residents and school children, to restore a section of river suffering from various anthropogenic impacts. The river supports small populations of brown trout and bullhead, amongst other species, and has suitable substrate capable of supporting greater fish numbers. However, summer low flow conditions throughout much of the site were often unfavourable for this prior to these works.

Monitoring surveys and results

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Lessons learnt

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Image gallery

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Catchment and subcatchment Select a catchment/subcatchment Site Edit site Name River Avon WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Reference morphology Desired post project morphology Heavily modified water body No National/international site designation Local/regional site designations Protected species present No Invasive species present No 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 2015/09/01 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 Historic over-widening and straightening led to lower summer flows unfavourable for trout and bullhead survival Hydromorphology Biology Fish Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Planform / Channel pattern Introducing large woody debris, brushwood berms to increase scour on the gravels, Habitat creation, Creation of fish refuge areas, Cut back of trees 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