Denso Steelcoat™ Protects Scottish Water Aqueducts

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Project Data

Project Details

Scottish Water PLC completed a £7m project to upgrade aqueducts conveying water from Loch Katrine to Glasgow. The company says it was the biggest improvement to the aqueducts since they were constructed more than 150 years ago. The main contractors were George Leslie Ltd with Jacobs being the consulting engineers.

The Denso Steelcoat 400™ System was chosen to give long-life protection to the 48” diameter pipes used at three structures which were virtually reconstructed along the aqueduct system. These carry two twin pipeline sections conveying 450 million litres of water per day to 1.3 million people. Subcontractor Interserve carried out the Denso Steelcoat application comprising a coat of Denso Hi-Tack™ Primer followed by Denso Hi-Tack™ Tape overwrapped with Denso Ultraseal™ Tape. The system was completed with a coat of Denso Acrylic Topcoat™.

Senior Project Manager Jim Clarke said “Due to the remote location and the changes in weather patterns throughout the refurbishment of the pipebridges, we had a number of challenges to overcome but we are highly delighted with the quality of the finished product. It was a pleasure being part of the team whilst carrying out this project for George Leslie and Scottish Water”.

Over the combined length of the ʻoldʼ and ʻnewʼ aqueducts, there were more than 30 historic listed structures and planning permission for the repair work was conditional on full consultation with Historic Scotland.

Scottish Waterʼs project manager, Simon Renton said “Strict adherence to constraints and restrictions was necessary to ensure that the character of the historic structures was preserved. Reconstructed areas of masonry on every part of the structure had to match the existing stonework and painting and protective coatings systems were carefully chosen to blend in with the surrounding structure.