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CAM400 Infrastructure Improvement Project

Includes Whittemore Ave, Harrison Ave, Seagrave Rd, Madison Ave, Magoun St, Columbus Ave, Kimball St, Kassul Pk, and Massachusetts Ave and Alewife Brook Pkwy Intersection

This project has been completed. No further updates to this project page will be made.

This project is complete.

For more information on this project, please click on the Project Background tab.

This project is complete.

Project Background 

“CAM” refers to a portion of the city's collection system that contains combined sanitary wastewater and stormwater infrastructure. During certain rain events the CAM400 system can release combined sewer overflows (CSOs) to the Alewife Brook. This project will separate these systems in the Whittemore Avenue neighborhood and will install floatable controls on the existing CSO structures at CAM001, CAM002 and CAM 401B in accordance with the Massachusetts Water Resources Authority’s Long Term Combined Sewer Overflow Control Plan for the Alewife Brook.

The current sewer and drain utilities in this area were constructed over 100 years ago and are served by common manholes (CMHs). This construction project will eliminate the CMHs and provide significant environmental benefits by eliminating combined sewer overflows from the CAM400 outfall. The water quality of the Alewife brook will be improved. Properties will be protected from sewer backups to the maximum extent possible. Treatment costs related to the city's discharge to MWRA will be reduced. During construction there will also be opportunities to improve sidewalk conditions and pedestrian safety, pave roadways, and plant more trees in the neighborhood.

Design for this project is being managed by the Department of Public Works, in coordination with the Community Development Department. Engineering consultants are SEA Consultants Inc and MWH Americas Inc.

Related Documents


Additional specifications are available for viewing at the Cambridge Department of Public Works. 



Cambridge Department of Public Works 147 Hampshire Street


Work hours are 7 AM to 4 PM, Monday through Friday Night work hours are 8 PM to 5 AM, Sunday through Thursday


For assistance during this project, including any accommodations or continuation of special services related to a disability or special need or to receive project updates via email, please contact Kelly Dunn, Community Relations Manager, at 617.349.4870 or kdunn@cambridgema.gov.

For 24-hour emergency assistance please call DPW at 617.349.4800.

Page was last modified on 7/25/2023 3:43 AM
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