Tech Tips: Structural Rehabilitation of Manholes

ByNASSCO Manhole Committee Member V. Firat Sever, PhD, PE, QuakeWrap, Inc.

According to published reports, it is estimated that there are over 20 million manholes in the USA and many of them have reached or exceeded their expected service life. Manholes are an important component of a sewer system and can be a significant source of infiltration and inflow (I&I).