Project Location

Project Site Detail

General Study Area Map of Colma Creek and Plant

Lower Colma Creek Section 103 CAP

LOWER COLMA CREEK, CALIFORNIA
CONTINUING AUTHORITIES PROGRAM, SECTION 103

VIRTUAL PUBLIC MEETING

* This meeting was held on Wednesday, June 29, 12-1 p.m. Click here to watch the presentation, followed by discussion. 
* The U.S. Army Corps of Engineers and the City of South San Francisco (SSF), together with the SSF - San Bruno Water Quality Control Plant are partnering on a coastal storm damage reduction project for the Water Quality Control Plant and one of its pump stations. Our goal is to manage the risk that coastal flooding poses to this critical infrastructure, to maintain critical services, despite the increasing flood risk that is expected with sea level rise. Flood-inducing plant failure could result in raw sewage backups into homes and streets, as well as emergency sewage releases into Colma Creek. This project aims to reduce the risk of these damages, and increase the community’s resilience to flood risk.
** We want to hear from you! The study team will present an overview of the project and the tentatively selected plan. Download the project fact sheet to learn more. Also available in Spanish, Tagalog and Chinese versions. ** 

COASTAL STORM RISK MANAGEMENT FEASIBILITY STUDY

The U.S. Army Corps of Engineers San Francisco District (USACE), in collaboration with the City of South San Francisco as our non-federal sponsor, prepared a Final Detailed Project Report and National Environmental Policy Act Environmental Assessment (DPR/EA) for the Lower Colma Creek Continuing Authorities Program Section 103 Project in South San Francisco, California.
 

Lower Colma Creek Continuing Authorities Program Section 103 Project - Final Detailed Project Report and Environmental Assessment [PDF]

Appendix A: Signed FONSI Appendix B: Environmental
Appendix C: Cultural Resources Appendix D: Economics
Appendix E: Real Estate Plan Appendix F: Civil Design
Appendix G: Cost Engineering Appendix H: Hydrology, Hydraulics and Coastal
Appendix I: Geotechnical  


PROJECT LOCATION AND DESCRIPTION

The study area is located in the City of South San Francisco, CA at the South San Francisco Water Quality Control Plant (WQCP), which is located on the south side of Lower Colma Creek, just upstream from where the creek enters San Francisco Bay. The purpose of the Lower Colma Creek Continuing Authorities Program (CAP) 103 project is to reduce flood risk from coastal storms and sea level rise (coastal flooding) at the wastewater treatment plant in South San Francisco, California, including Pump Station 4 which pumps directly to the plant and services an area with over 165,000 full time residents, plus the daily population of San Francisco International Airport (SFO).  The project is needed to protect residents, businesses, and the environment from the detrimental effects of unconfined raw sewage in the event of flood waters causing the wastewater treatment plant and/or pump stations to go offline.

 

TOTAL FUNDING

TOTAL COST                                                                             $ 16,107,000

FEDERAL COST                                                                        $  10,000,000

NON-FEDERAL COST                                                               $   6,107,000 

 

PAST AND FUTURE PROJECT MILESTONES

  • March 31, 2022 – TSP Milestone Meeting
  • June 10, 2022 – Draft Detailed Project Report and National Environmental Policy Act Environmental Assessment (DPR/EA) released for public comments
  • July 10, 2022 – Public comment period ended
  • December 2023 – Agency Technical Review and Legal and Policy Reviews concluded
  • December 15, 2023 – Final DPR/EA prepared
  • February 9, 2024 – Decision Document: Finding of No Significant Impact (FONSI) signed
  • February 2024 (scheduled) – Feasibility Study Phase close out
  • August 2024 (tentative) – Signing of the Project Partnership Agreement (PPA)
  • October 2024 (tentative) – Initiation of Design Phase 
  • April 2026 (tentative) – Plans and Specs approved for construction
  • April 2026 – October 2026 (tentative) – Procurement
  • October 2026 – December 2027 (tentative) – Construction
  • December 2027 (tentative) – Construction contract complete

ISSUES AND OTHER INFORMATION

  • The City of South San Francisco is the Non-Federal Sponsor (NFS)

CONGRESSIONAL INTEREST

  • 15th District, Rep. Kevin Mullen

POINT OF CONTACT

  • Deputy for Project Management, 415-503-6560

Updated on 13 February 2024

 

Project Contacts

Contact

Projects & Planning General Info
415-503-3674
450 Golden Gate
San Francisco, CA 94102