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Cargo Way Sewer Box Odor Reduction Project

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Project Purpose and Need

The San Francisco Public Utilities Commission (SFPUC) operates a combined sewer system that collects and treats wastewater (sewage and stormwater). Our Sewer System Improvement Program (SSIP) is upgrading and modernizing our system to ensure we can continue to protect public health and the environment now and into the future. 

As part of these citywide investments, the proposed Cargo Way Box Sewer Odor Reduction Project proposes to make sewer system improvements to reduce odors on 3rd Street, between the Levon Hagop Nishkian Bridge and Cargo Way, and on Cargo Way, between 3rd and Mendell Streets. The project proposes to install a sewer flush line in the Cargo Way sewer to divert flows from the Islais Creek Booster Pump Station to the sewer box between Cargo Way and Mendell Street. The additional flows will help flush and reduce odors in the project area.

During construction, sewer services will be maintained, and traffic lanes are expected to remain open. There may be weekend road closures on 3rd Street Southbound between the Levon Hagop Nishkian Bridge and Cargo Way. Traffic detours will be implemented, and advanced notification will be provided.

Project Benefits

  • Modifications to minimize odors from the sewers 
  • Increase reliability of our City’s critical sewer system infrastructure 

Estimated Construction Schedule
Summer 2020 - Fall 2021   

Cargo Map

What to Expect During Construction 

  • SEWER SERVICE in the area 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: Lane closures in some areas may be necessary to ensure safety of workers and the public. Advance notice and detour signage will be provided.
  • MUNI: During sewer work on 3rd Street, impacts to the 3rd Street light rail are expected.
  • ACCESS: Follow posted signage on site. Sidewalk along 3rd Street Southbound will be impacted during some of the construction work. Alternate pedestrian route will be provided with posted signage on site. Businesses and residents in the work zone will maintain access to existing driveways and entrances 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. Water vapor (white smoke) may be seen coming out of existing manholes during construction.
  • NOTICE: A 30-day and 10-day notice will be distributed prior to construction to residents and businesses within the project area detailing traffic impacts and project details.

About the SSIP

The Cargo Way Box Sewer Odor Reduction Project is part of the Sewer System Improvement Program (SSIP), a 20-year, multi-billion dollar citywide investment required to upgrade our aging sewer system. The program is the result of an extensive community planning process and will ensure a reliable, sustainable and seismically safe sewer system now and for generations to come. For more information on SSIP and to stay up to date, please visit

Last updated: 8/31/2020 12:02:06 PM