Citywide Drainage and Water Quality Master Plan

The City developed a Citywide Drainage and Water Quality Master Plan, a collection of infrastructure projects that will reduce flooding, improve water quality, and mitigate combined sewer overflows. After years of modeling and evaluation, the Engineering Division and its consultants, with input from the pubic, have identified 22 projects that would address the root causes of flooding and prepare Somerville for climate change.
You can read the Final Report here.
The City developed a Citywide Drainage and Water Quality Master Plan, a collection of infrastructure projects that will reduce flooding, improve water quality, and mitigate combined sewer overflows. After years of modeling and evaluation, the Engineering Division and its consultants, with input from the pubic, have identified 22 projects that would address the root causes of flooding and prepare Somerville for climate change.
You can read the Final Report here.
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32CliftonSt2022about 1 year agoSupport residents in replacing impermeable paving with permeable pavers wherever possible (sidewalks, parking, walkways, etc.)
0 comment2MFischer7 months agoInclusion of rain bioretention and phytoremediation zones with new street updates.
With wonderful capital projects, such as the updating of Beacon St. to include bike lanes and wider sidewalks, we should ensure that green zones, as pictured here, serve efficiently as bioretention and phytoremediation zones. This is a perfect opportunity to collect stormwater runoff on a highly trafficked street. With a proper infiltration media, a shallow depression below street level, and a grate or cut-out in the curb would allow excess polluted stormwater to infiltrate into the water table rather than enter the drain-to-the-ocean pipeline. Additionally, when sidewalks are expanded (the brick zone, here) these areas could instead be planted with native grasses (grassed swales) to help mitigate nitrogen and other pollutant concentrations in the cities soils (in addition to serving as a bioretention zone). Moreover, incorporating these types of solutions also assist in preventing bike lanes from flooding during heavy rain events, increase community connection to nature, can help serve as "green corridors" for pollinating insects to traverse the city, and can help develop local smart growth initiatives (https://www.mass.gov/service-details/smart-growthsmart-energy-background-information)
0 comment1beland8 months agoRain barrels and groundwater discharge
Incentivizing or requiring buildings to buffer their own roof-collected stormwater would reduce the amount of runoff going to city streets, and also conserve reservoir water for use during droughts. We recently installed two rain barrels to catch our garage runoff for use when watering plants. Rainwater from our house goes into a French drain instead of the street, so it waters our trees and bushes. The city should require this for new construction and subsidize re-routing to on-site buffer for existing properties, starting with those where it would help the most.
0 comment0Slaw11 months agoEliminate CSO's don't just mitigate them.
Well past time to ensure we aren't dumping sewage in the river.
0 comment0Christopher Gillabout 1 year agoWith flooding issue in our area (near the bike path at Clifton and Winslow), the city could establish rain gardens as green infrastructure
0 comment5
Who's Listening
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LH
Phone 6174483716 Email lhiller@somervillema.gov
Resources from the Community Meetings
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Meeting #1 March 16, 2022 Wards 5, 6, and 7
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March 16, 2022 Community Meeting Presentation.pdf (19.8 MB) (pdf)
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March 16, 2022 Community Meeting Recording
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March 16, 2022 Community Meeting Proposed Projects Haitian Creole Translation (1.25 MB) (pdf)
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March 16, 2022 Community Meeting Proposed Projects Nepali Translation (1.41 MB) (pdf)
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March 16, 2022 Community Meeting Proposed Projects Portuguese Translation (1.46 MB) (pdf)
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March 16, 2022 Community Meeting Proposed Projects Spanish Translation (965 KB) (pdf)
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Meeting #2 March 23, 2022 Wards 2 and 3
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Meeting #3 March 30, 2022 Wards 1 and 4
Technical Reports
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Sewershed A Final Technical Report with Appendices.pdf (36.1 MB) (pdf)
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Sewershed C1 and S1 Final Technical Report with Appendices.pdf (68.7 MB) (pdf)
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Sewershed S2 Final Technical Report with Appendices (96.2 MB) (pdf)
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Sewershed CA Final Technical Report with Appendices (110 MB) (pdf)
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Sewershed C2 Final Technical Report with Appendices (125 MB) (pdf)