Case Study - Rivers - Charmouth Sewage Treatment Works
Project: Charmouth STW
Project Location: Charmouth, Dorset
River System: River Char
Client:
Date of Installation: 2005
Project Brief
Restore an aggressively eroding outside meander at the toe of a recently constructed Sewage Treatment Works
Solution
Our technique involved the construction of an armoured sloping revetment using hardwood posts, geotextiles and locally sourced gravels from the emergent point bar.
The re-claimed cavity was carefully contoured to ensure smooth transition of flood flows over the new sloping bank face.
A complimentary downstream riffle was also installed to manage scour over the first series of winter floods.
The completed bank face was planted with live willow stakes and left to vegetate naturally with waterborne root stock and seed bank.
The result has been a sustainable , aesthetically pleasing solution in keeping with the geomorphologic and environmental needs of the site