The Pinn flows for 12 miles from north east of Harrow Weald Common to join the Frays River at Cowley. The Ash leaves the Colne at Staines and flows east for 6 miles to the Thames. The Duke of Northumberland and the Longford Rivers flow from the Colne near Heathrow to the Crane.
The Colne Valley Park covers 43 square miles of countryside on the edge of London, Herts, Bucks, Berks and Surrey. The Park includes over 70 lakes, 13 Sites of Special Scientific Interest, 5 country parks and hundreds of other green spaces.
21. Himalyan Balsam Removal in Ruislip Woods
Aim:
Control invasive non-native species; Involve people with their local waterbodies
Removal of Invasive Species in Copse Wood, Ruislip Woods National Nature Reserve. As part of an ongoing project with funding from Affinity Water we are trying to reduce the amount of Himalyan Balsam growing in the Ruislip Woods National Nature Reserve
12. Hillingdon House Farm project
Aim:
Improve wildlife corridors; Work together
10. Riverfly monitoring
Aim:
Improve water quality; Work together
Volunteers from The Friends of the R. Pinn monitor four sites along the river on a monthly basis, as part of the Anglers' Riverfly Monitoring Inititative.
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6. Weirs at Shepperton
Aims:
Manage flow
Removal of weirs to improve fish passage and enhance upstream channel
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5. Laleham Pond
Aims:
Improve wildlife corridors
Restored pond managed for biodiversity on historic wetland site near Ash channel
4. Bronzefield
Aims:
Improve wildlife corridors
Improvement works to floodplain vegetation and out of channel pool managed for biodiversity and amenity:
1. In channel improvement works consisting of the installation of wooded materials to re-profile the river channel and restore natural morphological processes.
2. The removal of shading trees to increase light levels to the river channel in order to allow aquatic plant life to flourish.
3. The installation of gravel riffles to restore the rivers natural substrate and natural morphological processes.
4. The provision of backwaters to provide lateral habitats adjacent to the river to mimic the function of a natural floodplain, to provide fish recruitment habitat and to provide refuge habitat for all aquatic wildlife.
5. The removal of invasive species.
6. The disposal of all rubbish and fly tipping at the site.
To find out what happened next see River Ash Improvements Update 2021
3. Ash Link LNR
Aims:
Improve wildlife corridors
Habitat improvements at Splash Meadow and Nutty Wood.
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2. Pinn Meadows Drainage Project
Aims:
Improve wildlife corridors
Creation of a mosaic of ponds and ditches in the wetland meadow
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1. River Pinn Restoration Project
Aims:
Improve wildlife corridors
Creation of two backwaters on an areas where a meander and a backwater used to be prior channel modification.
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7. 11 month contract Frays and Pinn coordinator
Aim:
Control invasive non-native species; Involve people with their local waterbodies; Work together
- Establish and maintain contacts with key volunteer groups
- Consult with local support groups and users groups to improve access and local participation in river activities.
- Plan, organise and deliver volunteering and engagements activities and events with community groups and residents
- Maintain and manage events equipment
- Carry out risk assessments on project sites as required and introduce any corrective actions resulting from these.
- Act as responsible Health and Safety Officer at events.
- Coordinate and direct volunteers working on projects
- Manage volunteer delivery staff to increase event capacity
20. European Eel monitoring
Aims:
Improve wildlife corridors
Elver monitoring on the Ash as part of a wider monitoring programme through the Thames catchment.
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Project status
Potential
Planned
Ongoing
Completed
Potential: Opportunity identified, further consultation required
Planned: Consultation, costing and/or fundraising in process
Ongoing: Project currently being implemented
Completed: Project finished