Case study:Wild Wylye Phase 1

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Location: 51° 7' 55.89" N, 1° 55' 15.93" 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, Monitoring, Social benefits
Country	England
Main contact forename	Martijn
Main contact surname	Antheunisse
Main contact user ID	User:Martijnantheunisse
Contact organisation	Wiltshire Wildlife Trust
Contact organisation web site	http://www.wiltshirewildlifetrust.org
Partner organisations	Environment Agency, Wylye Fly Fishing Club, Natural England
Parent multi-site project
This is a parent project encompassing the following projects	No

The Wylye used to be over wide and straight, particularly on this stretch. Brushwood structures installed alternating on both banks have helped recreate (in-channel) sinuostity.

Project summary

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The overarching goal of this project was to enhance the river habitat quality of the Wylye over a length of 2000m. Within five years from project completion, once the effects of structures and planting have maximised, the river will provide a complete configuration of high quality habitats for key-species (i.e. Atlantic salmon, ‘wild’ Brown trout and River water-crowfoot), in all their lifecycle stages, but also incorporating the needs of a whole raft of supporting species. In addition, the river will provide a better, more challenging ‘wild’ fishing experience, the Wylye valley will be perceived as a more natural, aesthetic river landscape by river-owners and users and the whole system will be more resilient to short term incidents (droughts, floods) and long term changes (rising temperatures due to climate change).

A very important driver of this project was to bring together different stakeholders and interest groups on the river to make this project into a synergistically resounding success. Funding for the project come from the riparian owners, the Environment Agency and the Wylye Fly Fishing Club (WFFC). There was a contribution in time, free of charge, from WFFC and the Wessex Chalk Streams Partnership (hosted by Wiltshire Wildlife Trust, supported by the Environment Agency, Natural England, Wessex Water and the Wiltshire Fisheries Association). These two core partners have also provided and supported volunteer labour during the delivery process. Additional funding for specific parts of the work came from the Woodland Trust. The involvement and engagement of such a diverse group of organisations, people and professions ensured that we did not focus on just one specific outcome, but took all points of view into account. Furthermore, volunteers physically working on river enhancement projects took pride in their work (see the image gallery) and developed a feeling of ‘ownership’.

At the end of the project we had installed more than 60 ‘soft-engineering’ structures, ranging from simple log deflectors to large brushwood mattresses. Furthermore, we re-build riffles (by introducing fresh gravels) and we re-aligned the channel at two occasions.

Monitoring surveys and results

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Image gallery

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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