West SOMA, Panhandle and Inner Sunset Large Sewer Improvements Project
Overview
The West SOMA, Panhandle and Inner Sunset Large Sewer Improvements Project will rehabilitate the existing 100-year-old sewer mains and sewer laterals located under the streets highlighted on the Project Maps.
Crews will be inactive for two weeks, beginning Monday, December 22, 2025. Construction is anticipated to begin again early January 2026.
For an upcoming overview of construction activities, see Construction Look Ahead tab below. Please note that construction schedule is subject to change, for questions or concerns please email us at ssip@sfwater.org with West SOMA in the title.
*This project is completing the remaining construction of the original Panhandle and Inner Sunset Project.
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Project Background
To minimize impacts to the roadway and adjacent residences and businesses, most of the sewer rehabilitation work will be performed using a trenchless method called Cured-In-Place-Pipe (CIPP). Construction will include improvements to sewer lower laterals within the project area. In some locations, street excavation may be required, and advance notice will be provided.
Project Benefits:
- Address aging sewer system infrastructure
- Increase reliability of our City’s critical sewer system infrastructure
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Construction Look Ahead
December 2025 Construction Schedule: *
Divisadero Street (Fell Street to Oak Street)
- Dec. 15 – 17, 2025: Replacing sewer laterals, plugging sewer main.
Fells Street (Cole Street to Clayton Street)
- Dec. 15, 2025: Clean and TV sewer main.
- Dec. 18 – 19, 2025: Replacing sewer laterals.
Cole Street and Oak Street Intersection
- Dec. 15 & Dec. 18 – 19, 2025: Clean and TV sewer main.
7th Avenue (Judah Street to Lawton Street)
- Dec. 15, 2025: Clean and TV sewer main.
Mission Street (11th Street to 8th Street)
- Dec. 19, 2025: Clean and TV sewer main.
Natoma Street (9th Street to 8th Street)
- Dec. 17, 2025: Clean and TV sewer main.
Howard Street (9th Street to 8th Street)
- Dec. 17, 2025: Clean and TV sewer main.
9th Street (Mission Street to Folsom Street)
- Dec. 16, 2025: Clean and TV sewer main.
8th Street (Harrison Street to Bryant Street)
- Dec. 16, 2025: Clean and TV sewer main.
Stanyan Street (Fulton Street to Hayes Street)
- Dec. 18, 2025: Clean and TV sewer main.
Stanyan and Carl Intersection
- Dec. 18, 2025: Clean and TV sewer main.
*Please note that construction schedule is subject to change, for questions or concerns please email us at ssip@sfwater.org with West SOMA in the title.
What to Expect During Construction:
- SEWER SERVICE: These services will NOT be interrupted during construction.
- PARKING: Street parking will be impacted near construction zones. No-Parking signs will be posted 72 hours in advance.
- TRAFFIC: Partial lane closures may be necessary to ensure safety of workers and the public. Advance notice and detour signage will be provided, as needed.
- MUNI: Passenger loading zone for bus stops may be temporarily relocated. Advance notice and detour signage will be provided as needed.
- ACCESS: Follow posted signage on site. Driveway access to businesses and residents in the work zone will be maintained during construction.
- NOISE: Neighbors may hear construction noise periodically. Noisy work will be conducted in compliance with the San Francisco Noise Ordinance.
- ODORS: If necessary, odor control measures will be in place during construction. Please see CIPP page for more information: sfpuc.org/curedpipe.
- NOTICE: A 30-day and 10-day notice will be distributed prior to construction to residents and businesses within the project area before construction begins.
- Project Materials
