Manhole Rehabilitation Research for WERF

Failure of a manhole may have catastrophic consequences such as a sinkhole. At a minimum, wastewater flow will be blocked and flow upstream of the manhole will back up, causing a sanitary sewer overflow (SSO). Accordingly, the structural condition of a manhole is an important performance indicator and risk of failure should be minimized. Mechanical strength of manhole rehabilitation materials vary substantially, and little is known about their ability to withstand the dead and live loads exerted on a manhole. As such, this project investigates the structural capabilities of commonly used manhole rehabilitation materials and methods via literature review, case study compilation, lab tests on mechanical strength, and computational modeling.