Cranbrook, B.C. Completes Sewer Relining Project
(UC) — The City of Cranbrook, British Columbia’s 2019 Capital Works Program is wrapping up with the recent completion of the sewer relining project in the downtown area.
Using cured in place pipe (CIPP), the city’s contractor Insituform Technologies used air pressure to blow a flexible resin filled liner down and through the old deteriorating clay tile pipe. Air pressure then expanded the liner against the inside of the pipe until the resin cures and hardens. The ends of the liner were trimmed and any services into the pipe were reopened using a pipe crawler outfitted with a specialized cutting tool.
The cost savings of completing the project using trenchless rehabilitation were significant compared to conventional excavation and removal and replacement of existing pipe and road surface, said Mike Matejka, manager of Infrastructure Planning & Delivery.
“The process is around 10 times faster than conventional pipe replacement, which reduces the disruption to traffic and disruption to residents and businesses that are connected to the sewer and rely on the roadways for access,” Matejka said.
Along with the sewer re-lining project, the City completed its six other major Capital projects before the end of September with an approximate value of C$4.6 million. This included water-main replacements, storm sewer upgrades, new sidewalks, intersection safety upgrades, and road resurfacing work.
Proactive asset management, budget planning and implementation, and a project management framework focusing on efficiency and quality, all contributed to the success of the 2019 Capital Program, city officials said.
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