A 2 1/2-foot-deep sinkhole, 3 feet square, developed in Tacoma, Wash., when soil eroded under a 115-kV transmission tower after a cookie failed in a 10-inch sewer main. The city’s Environmental Services/Maintenance Division (ESMD) had to seal the connection before erosion...
Where the Cookie Crumbled
A cured-in-place-pipe spot-liner system saves the City of Tacoma, Wash., substantial time and inconvenience on a challenging sewer main repair
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