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140 m of river bank protection and safeguarding the road for the future generations.

CLIENT: Cumbria County Council     VALUE: £250,000     COMPLETION: February 2020     

DURATION: 20 weeks     CONTRACT: NEC 3


  • Repairs to the existing retaining wall could only be carried out by working in the river during the permitted window of between June and September
  • The existing retaining wall had suffered from underscour. Grout bags were installed below the river level and grout was pumped into the void
  • Sand bag cofferdam was installed in the river to contain any grout from entering the river course
  • Thomas Armstrong (Construction) Ltd liaised with all the stakeholders such as Natural England and the Environment Agency. There was an early involvement to discuss the design and environmental implications

  • Thomas Armstrong (Construction) Ltd obtained the Flood Defence Consent on behalf of Cumbria County Council which included a Water Framework Directive submission as the work was in a SSSI
  • Between the existing retaining wall and road, 10m long sheet piles were installed as the back up to the existing retaining wall as it was coming to the end of its designed  lifespan
  • Willow Spiling planted to reinforce areas of river embankment
  • Embankment replanted with native species tolerant to flooding
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