The Grand Haven-Spring Lake Sewer Authority (GHSLSA) and the Ottawa County Road Commission located in Western Michigan developed a five-phase project in early 2017 which included upgrades and improvements to sewer lift stations in Spring Lake, Ferrysburg and Grand Haven, along with headworks upgrades at the treatment plant. Phase 3 of the project included the installation of a 4,100-foot crossing of the force main underneath the Grand River, which replaced the existing 12-inch ductile iron force main that was installed there in the 1970s. The GHSLSA knew the existing force main was approaching the end of its useful life expectancy and it was time to upgrade to a new force main that would accommodate the recent and future increased flow capacity for the service area. GHSLSA turned to Fusible PVC® pipe and horizontal directional drilling (HDD) installation technology to complete this difficult crossing.
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