Cambridge’s 2017 Alewife Sewer Separation Project Overview

Wondering what’s involved in combined sewer separation and CSO elimination work? This is Cambridge’s $90 million Alewife Sewer Separation Project Overview for CAM004, which was completed as part of the first Long Term CSO Control Plan. It includes photos of digging holes, laying pipe, upgrading water mains and gas lines, street and sidewalk reconstruction, mitigating associated traffic problems, plantings, new trees, plantings, biobasins, pourous pavement, and a public promise of a projected improvement of 85% less CSO discharge. This is a massive Department of Public Works project which cost $90 million, of which 50% was paid by the MWRA and 50% by the city of Cambridge.