Inflow and infiltration are a problem for Kansas City’s 66,000 manholes, which are mostly brick and very old. The city’s contractor has been successfully rehabilitating the manholes with the Permacast system from AP/M Permaform.
The sewer system in Kansas City, Missouri, is big and old, nearly 318 square miles of combined and separate sewer networks including many still-functioning sections built pre-Civil War.
A century and a half later, the mostly clay and brick infrastructure is, understandably, failing. This is particularly true when it comes to manholes. “Kansas City has more than 66,000 manholes in its system, mostly brick, and mostly very old,” says Andy Shively, special assistant city...
