Phase IV of East Boston Sewer Separation Project Underway

Boston – Stantec has been selected to lead design services on Phase IV of the Boston Water and Sewer Commission’s (BWSC) East Boston Sewer Separation project. The project is part of a comprehensive 30-year initiative to reduce pollutants discharged to Boston Harbor and its tributary waters and to modernize water infrastructure in the rapidly developing neighborhood.

The work will enhance water, sewer, and storm drainage infrastructure which is vital in supporting the ongoing growth and prosperity of the East Boston community. Phase IV of the project involves separating approximately 230 acres of combined sewer area, along with installing new storm drains, updating existing sewers, replacing adjacent aging water mains, and modifying existing regulator structures. As lead designer, the Stantec team will complete conceptual designs, hydraulic modeling, master planning, and final design documents, including pre-construction services.

“Water infrastructure plays a crucial role in a city like Boston, where factors such as climate change, population growth, and new development only further stress existing resources,” said Mike Carroll, Stantec project manager. “We’re proud to continue a decades-long relationship with the BWSC to improve the historic and essential waterways while helping modernize this infrastructure across several neighborhoods to support residents and businesses into the future.”