11 September 2025
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Third Phase of Strategic Rising Sewer Main Upgrade to Start
11 September 2025
Temporary Pipe
A temporary pipeline will once again be used to carry flows while the underground rising sewer main is relined
The third phase of an £11.5million investment to upgrade a vital strategic rising sewer main between Renfrew and Glasgow is about to get underway.
Nearly a mile has already been relined along King’s Inch Road to the North Lodge pumping station which pumps pressurised waste water to the Shieldhall treatment works.
On Monday 29 September, work will begin to upgrade a section of pipe running underneath King’s Inch Road between Crofton Way and Laymoor Avenue.
A temporary pipeline will be set up to carry the flows from the pumping station. Access pits will then be excavated at strategic points to allow the lining material to be fed down the pipe.
Nathan Wield, Scottish Water’s Regional Treatment Manager said: “We will be using a different, less intrusive method to draw the liner through the pipe than the first two phases.
“There won’t be any need for scaffolding so we can carry out the work at ground level although a lane closure will be needed on King’s Inch Road.
“This section of pipe has been prone to bursts quite recently so once completed the relined rising main will be much more resilient and far less likely to fail.”
Previous phases used large scaffolding towers
The bypass is connected to the underground pipe
The second phase of the project required the closure of Ferry Road at King’s Inch Road to allow a temporary pipeline to connect into the underground pipe. Final reinstatement is being carried out and the road is due to reopen on Friday 12 September 2025.
Nathan Wield added: “This project has been delivered at an unprecedented pace and reflects our commitment to protecting customers and the environment.
“The local community has shown great patience and understanding over the past eighteen months or so and we are extremely grateful for their cooperation.”
Scottish Water is investing record levels – around a billion pounds a year – to repair, renew and replace vital assets.
The work is being delivered by the public utility’s alliance partner Caledonia Water Alliance (CWA) and their specialist contractors and is expected to be completed by March 2026.
