East SOMA Sewer Improvements Project
Overview
The East SOMA Sewer Improvements Project will rehabilitate the existing 100-year-old sewer mains and sewer lower laterals located under several streets highlighted on the Project Maps.
Please check this project page for timely updates about the construction schedule and upcoming locations. To receive these updates via email, please complete the form on the right-hand side of this page.
Upcoming Construction Schedule*
*Please note Schedule is subject to change.
Bryant Street (3rd and 2nd Street)
- May 15 – 16: Crews will be repairing sewer laterals in the area.
- May 14 – 16: Replacing concrete parking strip.
- June 9 – 13: Paving for sewer manholes, laterals, and culverts.
Mission Street (7th and 6th Street)
- May 12 – 13: Perform lining for sewer lateral connection.
- May 12 – 16: Excavation and replacement of sewer laterals.
- May 14 – 16, May 19 – 23: Backfill and restoration of sewer potholes and culverts.
- May 27 – 28: Remove concrete from sewer culverts.
- May 29 – 30: Perform lining for sewer culverts.
- May 29 – 30: Replacing concrete parking strip.
- June 2 – 6: Sewer main lining scheduled.
- June 9 – 10: Backfill and restore street base.
- June 11 – 13: Grinding and paving for sewer manholes, laterals, and culverts.
Mission Street (6th and 5th Street)
- May 12 –15: Main sewer main lining scheduled.
- May 16, May 19: Excavation and replacement of sewer laterals.
- May 19 – 23: Backfill and restore street base.
- May 29 – 30: Demo and replace concrete parking strip.
- June 9 – 13: Grinding and paving for sewer manholes, laterals, and culverts.
7th Street (Mission and Market)
- May 13 – 14: Perform lining for sewer laterals.
- May 30 – Demo and replace concrete parking strip.
- June 9 – 13: Grinding and paving for sewer manholes, laterals, and culverts.
- June 13 – 16: Sewer main lining scheduled.
3rd Street (Folsom and Harrison)
- May 12 – 13: Removing shoring and backfilling for sewer manhole.
- May 19 – 23, May 27 – 30: Perform mortaring of sewer main at intersection.
- May 27 – 28: Demo and replace concrete parking strip.
- June 2 – 4: Remove shoring and backfill sewer manhole.
- June 3 – 5: Replace street base and temporary paving additional sewer culvert and lateral.
- June 6 – 9: Sewer main lining scheduled.
Howard Street (Fremont and Main)
- May 13 – 16, May 19: Constructing sewer manhole.
- May 15 – 16: Perform lining for sewer lateral.
- May 28 – 29: Backfill and remove shoring for large manhole.
- May 29 – 30: Excavate and replace additional sewer laterals.
Schedule Subject to Change, last updated on 05/14/2025. Have questions? Please reach out to us by email at ssip@sfwater.org with 'East SOMA' in the subject line.
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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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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
