28. Denham Country Park Backwater

Aim: Improve wildlife corridors; Work together

Working in partnership to create a backwater on the River Colne in Denham Country Park. 

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16. Reedbed restoration at Maple Lodge Nature Reserve

Aims: Improve wildlife corridors

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28. Giant Hogweed Control

Aims: Control invasive non-native species

Giant Hogweed found at the confluence of the Pinn and Frays

26. River Restoration at Denham

Aims: Improve wildlife corridors

River and ditch  restoration in pursuit of Water Framework Directive improvement

Remove trees, other woody scrub and bramble from sections of the Fray’s River and ditches on Fray’s Farm Meadows London Wildlife Trust (LWT Reserve). Work on the Fray’s River was carried out in February 2016 to remove overhanging branches but retaining woody habitat already in the river. The extra light allowed on to the river should encourage the growth of marginal plants that provide ideal water vole habitat while the woody material in the river will act as nursery areas for small fish. The photographs show the situation on the river immediately before and after the work.

25. Colne Valley Water Vole Conservation

Aims: Improve wildlife corridors

Maintain and extend the surveying of water bodies to look for evidence of water voles and hence increase knowledge of the presence and absence of water voles in the valley.  Increase the number of rafts to monitor and control American mink, the prime predator of water voles. Wherever possible improve habitats to benefit water voles and other riparian wildlife.

15. Lower Colne Mink control

Aim: Control invasive non-native species; Improve wildlife corridors

American Mink monitoring and control for the benefit of Water Voles and other native wildlife.

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3. Stockers Weir

Aim: Improve wildlife corridors; Manage flow

Weir modifications and bypass channel to create fish passage and improve flow upstream of the weir.

14. Uxbridge Alderglade

Aims: Improve wildlife corridors

 Habitat enhancements and access improvements at Uxbridge Alderglade Nature Reserve.

13. Black Park Alder Carr

Aims: Improve wildlife corridors

Habitat enhancements in the Alder Carr to slow drying out of the wet woodland Site of Special Scientific Interest.

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12. Colne Valley Park short walks

Aims: Involve people with their local waterbodies

Update and reprint the series of 20 short walks throughout the Colne Valley Park

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11. Floating Pennywort removal, Denham

Aims: Control invasive non-native species

Programme to remove Floating Pennywort from the Colne at Denham

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6. Connecting People with the Colne Valley

Aims: Involve people with their local waterbodies

The project aimed to encourage local people to discover wildlife in the Colne Valley through events, volunteering opportunities and new educational materials.

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10. Hardings Row Millenium Nature Reserve

Aims: Improve wildlife corridors

Habitat enhancements and access improvements at this small nature reserve in Iver Heath

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8. Springwell Reedbed

Aims: Improve wildlife corridors

Habitat restoration for wildlife.  Improved site signage and interpretation.

7. Rickmansworth Aquadrome

Aim: Involve people with their local waterbodies; Improve wildlife corridors

Enhancments to Batchworth Lake and Bury Lake as part of site management plan implementation. 

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9. Route to the Colne Valley Park from Uxbridge

Aims: Involve people with their local waterbodies

Improve the paths from Uxbridge into the Colne Valley Park, its network of waterside paths and countryside attractions.

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5. River Colne Backwater

Aims: Improve wildlife corridors

Backwater creation for mutual benefit of fishery and wildlife. To be undertaken as programme of habitat, access and landscaping enhancements along the River Colne walk

4. Colne at West Hyde

Aims: Improve water quality

The Stretch of River is Fished by the Fisheries Angling Club. Over the last few years a decline in catches has been noted by the angling club. This section of river has been historically modified through the practice of dredging. With little to no in channel habitat for fry and juvenile fish species survival a project was worked up to provide back water habitat. This will provide Juvenile fish and adult fish a survival area in times of high flows and provide a safe warm nursey for juvenile fish with shallow marginal ledges. These ledges established emergent vegetation also providing cover for fish species form the risks of predation.

2. Frays and Colne weir

Aims: Improve wildlife corridors

Weir modifcation to provide fish passage. Next steps are feasibility study and detailed design

1. Grand Union Canal backwater

Aim: Improve wildlife corridors; Work together

Creation of a backwater for mutual benefit of the fishery and biodiversity. A  fish refuge/spawning area and haven for wildlife with shallow sloping edges, variable  depth, steep banks for Kingfishers. Tree works to increase light to the backwater to encourage growth of marginal vegetation. Habitat enhancements along the edge of the Grand Union Canal.

27. Lower Misbourne habitat enhancements

Aim: Improve wildlife corridors; Manage flow; Work together

River enhancements to improve habitat from upstream of the Colne Valley Park Visitor Centre to the confluence with the Colne.

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22. Higher Denham habitat enhancement

Aim: Involve people with their local waterbodies; Improve wildlife corridors; Work together

Local volunteers completed the enhancement of the lower Misbourne near Higher Denham in May 2014, improving habitat for fish and wildlife.

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24. Misbourne Water vole monitoring scheme

Aim: Control invasive non-native species; Involve people with their local waterbodies; Improve wildlife corridors

Following on from the discovery of water voles along the lower Misbourne a monitoring scheme was set up by BBOWT in 2009.

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23. Riverfly monitoring

Aim: Involve people with their local waterbodies; Improve water quality

Volunteers from the Chiltern Society and Misbourne River Action monitor riverflies at 12 sites along the Misbourne. Monitoring began in 2011 and results are posted here. 

21. Gerrard's Cross Golf Club - Channel restoration

Aim: Involve people with their local waterbodies; Improve wildlife corridors; Work together

Project to remove weirs and concrete lining of river channel, enhance habitat and improve access for golf club users.

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20. River dipping

Aims: Involve people with their local waterbodies

Creation of an access beach to enable school groups and visitors to continue to river dip whilst minimising erosion to the river bank elsewhere.

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