Project Update - August 9, 2019. See Project Updates below.
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Metropolitan Council Environmental Services (MCES), operator of the metro-area wastewater collection and treatment system, inspected the regional sanitary sewer pipes between Chaska and Shakopee. The pipes were originally constructed in the 1990s and have a variation of elevation changes and curves, lending to potential build-up of gases and deterioration. The project also included sewer pipe cleaning and restoration of a service road in the area.
Chaska Area Sewer Inspection Project Overview (PDF)
How the Inspection Was Done
The project used SmartBall technology to inspect approximately 15,000 feet of pipes. Crews inserted a golf ball-sized sphere into the sewer pipes that flowed downstream and analyzed the pipes with the use of an acoustic sensor to detect potential pipe deterioration. The ball was inserted near lift station (L71) near 2nd Street and Beech Street in Chaska and flowed downstream to its retrieval point by Marystown Road and Highway 169 in Shakopee.
Chaska Area Sewer Inspection Project Map (PDF)
SmartBall Technology Infographic (PDF)
The project began in December 2018. Final restoration is expected to be completed by fall 2019.