MWRA's Heath Hill Water Main Rehabilitation Project with the Innovative Use of Trenchless Technologies

摘要

The Heath Hill Section 52 Phase 2 project consisted of rehabilitating 2 miles of an 80-year old, 54-inch diameter steel water main in Brookline and Boston for the MWRA. The pipeline had experienced leaks from corrosion and is a critical component of MWRA's transmission system. Detailed pipeline and environmental assessments were conducted and trenchless technologies were used to develop a sustainable rehabilitation approach. A combination of conventional and reinforced cement-mortar lining, as well as sliplining and an innovative Integrated Corrosion Protection System were implemented to overcome the challenges of construction work in Route 9, residential properties, Hellenic College, and wetlands.