Case study:Project Usk River Restoration (PURR) 2011-2012

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Location: 51° 56' 56.21" N, 3° 23' 29.27" W

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Project overview

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Status	Complete
Project web site	http://www.wyeuskfoundation.org/projects/purr.php
Themes	Fisheries, Habitat and biodiversity, Land use management - agriculture, Water quality
Country	Wales
Main contact forename	Stephen
Main contact surname	Marsh-Smith
Main contact user ID
Contact organisation	Wye & Usk Foundation
Contact organisation web site	http://www.wyeuskfoundation.org/
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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With the combined resources of Biffaward and the Brecon Beacons Trust, a project to work in the middle Usk started on 1st Jan 2011. Rather unusual geographic limits are attached to PURR: Biffaward is a landfill tax fund that allows activity within a radius of 10 miles of a landfill site, in this case near Felinfach, Brecon, while the geographic constraint of the Beacons Trust is the Park boundary itself. Thankfully they overlap quite conveniently and allow work from Sennybridge to Crickhowell and include the upper reaches of the Monnow tributary, the Honddu. The required landfill tax contribution was made with donations from Usk owners and anglers and the project was scheduled to last for two years.

So far we have completed habitat restoration on the following:

1.7km of the Menasgin at Llanfrynach

0.45km of the Rhiangoll, near Crickhowell

1.1km of the Upper Grwyne Fawr

1.2 km of the Monnow Honddu

The habitat team have also cut trees and pleaching in brash on the Caerfanell between Aber and the junction with the Usk.

We have also completed two fish passes on the Crawnon and two modifications to weirs on the Caerfanell are planned for summer 2012. Restoring salmon access to the Crawnon has been an ongoing project that started in 2006 and it was satisfying to see a large salmon redd in late December, 4 miles above British Waterways’ canal off-take weir. Over the next few years this high quality tributary will become an important salmon nursery area for the Usk.

Finally, this project has also continued with the work to eradicate Japanese knotweed from the middle reaches of the Usk.

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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