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River Petteril, Melbourne Park, Carlisle.

Client: Cain Bio
Partners: United Utilities & Cumberland Council
Project Type: River Restoration | Bank Stabilisation | Bioengineering
Key Statistic: 250 m river reach | 6,000+ tonnes of natural stone
Project Overview
TM Lindsay Ltd delivered a major in-river restoration and bank-stabilisation scheme on the River Petteril at Melbourne Park, Carlisle.
The works addressed a severely eroded section of river while protecting surrounding infrastructure and incorporating nature-based solutions to increase the ecological value of the completed scheme.
Originally scoped at approximately 200 metres, the works extended to around 250 metres during construction.
Our Delivery
More than 6,000 tonnes of natural stone were incorporated into the project alongside bioengineering and habitat-enhancement techniques.
Approximately 140 metres of rock rip-rap was installed along the west bank, including upstream and downstream tie-ins, together with approximately 120 metres of downstream toe protection to reduce the risk of future undercutting.
On the east bank, approximately 250 metres was reprofiled to create an improved and more natural channel form.
Sediment berms were also removed to help reinstate the historic river alignment.
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Ecological Enhancement
The engineering works were complemented by a range of natural materials and bioengineering techniques.
These included large woody material, live willow, coir rolls and natural geotextiles, helping to combine robust erosion protection with improved habitat value.
Key Works
  • Approximately 250 m of river restoration
  • 6,000+ tonnes of natural stone
  • 140 m rock rip-rap
  • 120 m downstream toe protection
  • 250 m east-bank reprofiling
  • Channel realignment
  • Large woody material
  • Live willow installation
  • Coir rolls and natural geotextiles
  • Utility protection and repairs
  • Full landscaping and reinstatement
Project Outcome
The completed project stabilised a significantly eroded section of the River Petteril while protecting infrastructure and creating a more resilient and ecologically valuable river corridor.
It demonstrates TM Lindsay Ltd's ability to combine substantial civil earthworks with sensitive river restoration and bioengineering techniques in a publicly accessible environment.
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restoration
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Prevention
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