Folsom Area Stormwater Improvement Project
Overview
The Folsom Area Stormwater Improvement Project is a part of the San Francisco Public Utilities Commission's (SFPUC) flood resilience efforts under the Sewer System Improvement Program (SSIP). The low-lying Inner Mission neighborhood surrounding 17th, 18th and Folsom Streets has been historically subject to flooding during moderate to heavy storms. This capital project will construct new infrastructure to improve collection system capacity to manage stormwater for the level of service (LOS) storm, which has a 20% possibility of occurring in a given year.
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Project Background
This project consists of two distinct components; improvements and upsizing of the existing network of combined sewer pipes and boxes within the vicinity of Folsom and 17th referred to as the “upstream components”; and constructing a large stormwater tunnel to convey the large volume of stormwater during heavy rains to the outfall at 7th and Channel Street.
Project Scope
- Construct a 3,500 linear foot, 12-foot internal diameter tunnel from the vicinity of Alameda/Treat Streets to the vicinity of 7th/Berry Streets
- Construct nearly 12,500 linear feet of sewer pipes to divert wastewater flow towards the new tunnel infrastructure
About the SSIP
The San Francisco Public Utilities Commission (SFPUC) recently launched the Sewer System Improvement Program (SSIP), a 20-year citywide investment to upgrade our aging sewer system and provide a more reliable, sustainable, and seismically safe system now and for future generations. The SSIP includes a series of facility upgrades at the Southeast Treatment Plant (SEP) located in the Bayview neighborhood of San Francisco. The San Francisco Public Utilities Commission (SFPUC) recently launched the Sewer System Improvement Program (SSIP), a 20-year citywide investment to upgrade our aging sewer system and provide a more reliable, sustainable, and seismically safe system now and for future generations. The SSIP includes a series of facility upgrades at the Southeast Treatment Plant (SEP) located in the Bayview neighborhood of San Francisco.
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What to Expect During Construction
Coming soon!
- Project Materials
