Mystic River Outfall and Sewer Separation

Project Overview

The City of Somerville is making substantial systemwide investments to modernize its sewer and stormwater infrastructure. As part of this effort, the City will be constructing a new stormwater outfall pipe which will discharge to the Mystic River, installing new drainage infrastructure, and rehabilitating the existing sewer system in the neighborhood west of Foss Park. This project will reduce flood risk in the surrounding area and help maintain the water quality of local rivers.

Prospective Timeline

City Staff from the Department of Infrastructure and Asset Management, along with consulting partners, are currently working on preliminary design for this project.

We anticipate sharing more information and initial design concepts at a community meeting to be scheduled in late spring/early summer 2024.

Preliminary designs are expected to be completed by Fall 2024. Final design is expected to be complete in 2025.

Learn More

To learn more about the City's efforts to reduce flooding and improve water quality in our local rivers, please see our Citywide Flood Mitigation and Water Quality Master Plan.

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