Case study:River Cole- Life Project: Difference between revisions
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Upstream of the mill the river was restored to its original course (retaining a small flow in the mill leat) to join the old surviving mill by-pass channel. This new smaller channel encourages beneficial flood storage on the fields and allows fish to pass the mill weir. Downstream the river was reduced in size and remeandered across the old course to a more natural profile, retaining existing mature riverside trees. The restoration of bed level, water level and flood regime was achieved by cutting the new meandering river at a much higher level, similar to that prior to the last major deepening scheme of the 1970s. | Upstream of the mill the river was restored to its original course (retaining a small flow in the mill leat) to join the old surviving mill by-pass channel. This new smaller channel encourages beneficial flood storage on the fields and allows fish to pass the mill weir. Downstream the river was reduced in size and remeandered across the old course to a more natural profile, retaining existing mature riverside trees. The restoration of bed level, water level and flood regime was achieved by cutting the new meandering river at a much higher level, similar to that prior to the last major deepening scheme of the 1970s. | ||
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|Caption=Construction of the meanders | |||
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|Caption=Aerial photograph of the restored channel | |||
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|Caption=Bifurcation structure upstream of the mill, March 2005 | |||
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|Caption=Cows using the livestock crossing | |||
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|Caption=Crayfish found in the river post-restoration, March 2008 | |||
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|Caption=The river during flood conditions, March 2010 | |||
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|Subcatchment=Cole (Bower Bridge to Thames) including Coleshill | |Subcatchment=Cole (Bower Bridge to Thames) including Coleshill | ||
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Revision as of 10:45, 6 September 2013
Location: 51° 38' 22.09" N, 1° 39' 46.08" W
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Project overview
| Status | Complete |
|---|---|
| Project web site | |
| Themes | Flood risk management, Habitat and biodiversity, Hydromorphology, Water quality |
| Country | England |
| Main contact forename | Martin |
| Main contact surname | Janes |
| Main contact user ID | User:NickRRC |
| Contact organisation | River Restoration Centre |
| Contact organisation web site | http://www.therrc.co.uk |
| Partner organisations | Environment Agency, National Trust, Countryside Commission, English Nature |
| Parent multi-site project | |
| This is a parent project encompassing the following projects |
No |
Project summary
Edit project overview to modify the project summary.
The river Cole has been realigned, straightened, and enlarged for over 900 years. Originally straightened for milling, the downstream section has more recently been enlarged to safeguard agricultural production from flooding. Above the mill the channel was realigned 200 to 300 years ago to form the present mill leat. This type of historical management is typical of many other rural rivers in the United Kingdom.
Upstream of the mill the river was restored to its original course (retaining a small flow in the mill leat) to join the old surviving mill by-pass channel. This new smaller channel encourages beneficial flood storage on the fields and allows fish to pass the mill weir. Downstream the river was reduced in size and remeandered across the old course to a more natural profile, retaining existing mature riverside trees. The restoration of bed level, water level and flood regime was achieved by cutting the new meandering river at a much higher level, similar to that prior to the last major deepening scheme of the 1970s.
Monitoring surveys and results
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Lessons learnt
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Supplementary InformationEdit Supplementary Information
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