Project: Erosion Control
Project Location: Scots Float
River System: Rother Inter-Tidal Channel
Date of Installation: 2005
Project Brief
The project aims were to reinstate the failing flood embankment on a wide outside meander. Erosion was threatening significant areas of farming land and infrastructure in the tidal flood plain.
Cain Bio-Engineering designed and installed a contoured brushwood mattress, anchored with hardwood stakes. Sediment deposited during each tidal cycle rapidly filled the mattress interstices with re-constituted clay colloid. The anaerobic conditions suspend decomposition of the internal woody skeleton, thus assuring the long-term integrity of the structure.
” By careful observation of the geomorphologic tidal features, Cain Bio-engineering consultants were able to design a sustainable solution entirely in keeping with natural processes and at a significant cost saving to the public purse”
Before
Before – 2004: Erosion of the flood bund in the Rother inter-tidal channel
Before – 2004: Erosion of the flood bund in the Rother inter-tidal channel
During
During – 2005: Hazel faggot installation on the Scots Float flood bund – Rother inter-tidal channel
During – 2005: Hazel faggot installation on the Scots Float flood bund – Rother inter-tidal channel
After (2005)
After – 2005: Up and downstream views of hazel faggot mattress on the Scots Float flood bund shortly after completion
After – 2005: Up and downstream views of hazel faggot mattress on the Scots Float flood bund shortly after completion
After (2012)
After – June 2012: Up and downstream views of hazel faggot mattress showing sediment accretions 7 years after project completion.
After – June 2012: Up and downstream views of hazel faggot mattress showing sediment accretions 7 years after project completion.
After – June 2012 Marginal vegetation encroachment on upper-tidal interface 7 years after project completion.
After – June 2012 Marginal vegetation encroachment on upper-tidal interface 7 years after project completion.
