River Rhiw Bank Protection

Over 200m of servere bank erosionOver 30m of High Pressure Gas Pipeline exposed by erosionInstalling a live brush mattress revetment with whole tree toeBrush Mattress after 8 months growth and after 4 bankfull flood eventsUsing a whole tree to create an engineered log revetmentTree felled into scour holeLogging the tree limbsPlacing felled branchesStaking branches and brash into placeCompleted RevetmentRevetment greening after 3 monthsLong Reach ExcavatorsCompleted Rootwad bank revetmentRootwad bank after 4 monthsLWD after 12 months2017 bed load response is protecting the pipelineRiver Rhiw in 2017
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Brush Mattress after 8 months growth and after 4 bankfull flood events

Salix were awarded the contract and began works to carry out 300 metres of riverbank protection to protect this existing exposed high pressure gas pipe in March 2013.

This was a design and build contract using large woody debris and willow revetments. The project dealt with severe riverbank erosion caused by the powerful tributary of the River Severn.

Salix coppiced 1500 live willow posts, sourced 45 whole trees and made 1000 live willow faggots from tree works in the same catchment as the works.

Date: March 2013 – May 2013

Total Value: £139,000
Tree Works: £59,000

River Solutions film River Rhiw

Salix were awarded the contract and began works to carry out 300 metres of riverbank protection to protect this existing exposed high pressure gas pipe in March 2013.

 

Details

Name: River Rhiw Bank Protection Works
Client: Wales and West Utilities
Location:
Category: High Energy Rivers, Rivers & Water Courses

Case Study