Case study:River Brent at Brent Cross: Difference between revisions
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{{Project overview | {{Project overview | ||
|Status= | |Status=Planned | ||
|Themes=Economic aspects, Fisheries, Flood risk management, Habitat and biodiversity, Social benefits | |||
|Country=England | |Country=England | ||
|Main contact forename= | |Main contact forename=Environment | ||
|Main contact surname= | |Main contact surname=Agency | ||
|Contact organisation=Environment Agency | |Contact organisation=Environment Agency | ||
|Contact organisation url=www.gov.uk/government/organisations/environment-agency | |||
|Multi-site=No | |Multi-site=No | ||
|Project summary= | |Project summary=Salix designed and constructed a 40 metre enhanced channel and imported flint reject stone was used to create in channel features, two riffles and a point bar. Diverse marginal and bankside vegetation was established using mature pre-established coir rolls and pallets. Locally harvested tree trunks were used to create a double flow deflector. Additionally, a large backwater was created on line and just downstream of the enhanced reach. A stream enhancement project at a gas pipeline river crossing as ecological mitigation to a degraded reach of stream as part of a major pipeline project. Salix were asked by Main Contractor Murphy Pipelines to assess a degraded reach of the River Pinn near Ickenham with the goal of enhancing the reach. The channel had been modified previously and was characterised by slow water flow, over deep and ponded with a silty bed and steep banks covered in nettles.<br> | ||
Planning application submitted (M&S) | |||
}} | }} | ||
{{Image_gallery}} | {{Image_gallery}} | ||
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{{ | {{Case study subcatchment | ||
|Subcatchment= | |Subcatchment=Dollis Brook | ||
}} | }} | ||
{{Site | {{Site | ||
|WFD water body code=GB106039022980 | |||
|WFD water body name=Dollis Brook | |||
|Heavily modified water body=No | |||
|Protected species present=No | |||
|WFD water body code= | |Invasive species present=No | ||
|WFD water body name= | |||
|Heavily modified water body= | |||
|Protected species present= | |||
|Invasive species present= | |||
}} | }} | ||
{{Project_background | {{Project_background | ||
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{{Motivations | {{Motivations | ||
| | |Specific mitigation=Flood risk management | ||
|Hydromorphological quality elements=Quantity & dynamics of flow, Channel pattern/planform | |||
|Other motivation=Recreation | |||
| | |||
|Other motivation= | |||
}} | }} | ||
{{Measures | {{Measures | ||
|Bank and bed modifications measure= | |Bank and bed modifications measure=Removing of concrete structures | ||
|Floodplain / River corridor=Reedbed creation, | |||
|Social measures=Aesthetics, Improved public access | |||
|Floodplain / River corridor= | |||
|Social measures= | |||
}} | }} | ||
{{Hydromorphological_quality_elements_header}} | {{Hydromorphological_quality_elements_header}} | ||
Latest revision as of 10:40, 31 May 2017
This case study is pending approval by a RiverWiki administrator.
Location: 51° 34' 31.87" N, 0° 13' 14.31" W
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Project overview
| Status | Planned |
|---|---|
| Project web site | |
| Themes | Economic aspects, Fisheries, Flood risk management, Habitat and biodiversity, Social benefits |
| Country | England |
| Main contact forename | Environment |
| Main contact surname | Agency |
| Main contact user ID | |
| Contact organisation | Environment Agency |
| Contact organisation web site | http://www.gov.uk/government/organisations/environment-agency |
| Partner organisations | |
| Parent multi-site project | |
| This is a parent project encompassing the following projects |
No |
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Project summary
Edit project overview to modify the project summary.
Salix designed and constructed a 40 metre enhanced channel and imported flint reject stone was used to create in channel features, two riffles and a point bar. Diverse marginal and bankside vegetation was established using mature pre-established coir rolls and pallets. Locally harvested tree trunks were used to create a double flow deflector. Additionally, a large backwater was created on line and just downstream of the enhanced reach. A stream enhancement project at a gas pipeline river crossing as ecological mitigation to a degraded reach of stream as part of a major pipeline project. Salix were asked by Main Contractor Murphy Pipelines to assess a degraded reach of the River Pinn near Ickenham with the goal of enhancing the reach. The channel had been modified previously and was characterised by slow water flow, over deep and ponded with a silty bed and steep banks covered in nettles.
Planning application submitted (M&S)
Monitoring surveys and results
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Catchment
Subcatchment
Other case studies in this subcatchment: Enhancements in Hampstead Heath
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Project background
Cost for project phases
Reasons for river restoration
Measures
MonitoringHydromorphological quality elements
Biological quality elements
Physico-chemical quality elements
Any other monitoring, e.g. social, economic
Monitoring documents
Additional documents and videos
Additional links and references
Supplementary InformationEdit Supplementary Information
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