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Project Description

The City and County of San Francisco is proposing to replace the existing Islais Creek Bridge along Third Street in San Francisco’s Bayview neighborhood. Construction of the proposed project would result in the replacement of the existing drawbridge with a fixed bridge and large ships would no longer be able access the Islais Creek channel west of the new bridge. The new bridge would accommodate a center 24-foot-wide dedicated light-rail transit (light rail) tracks, two 11-foot travel lanes in each direction, a 12-foot-wide shared pedestrian/bicycle path on the eastern side of the bridge, and a 17-foot-wide shared pedestrian/bicycle path on the western side of the bridge. Construction is estimated to be approximately 24 months and is projected to start in January 2027. Throughout the construction duration, there would be no access for vehicles, the T-Third Street light rail service, or pedestrians to the bridge or Third Street between Marin Street to the north and Cargo Way to the south. Vehicles would be detoured around the site to other arterials. T-Third Street passengers would use bus shuttles in lieu of light rail service south of Islais Creek Bridge and the 15 Bayview Hunters Point Express and 91 Third Street/19th Avenue OWL buses would be detoured around the project site.

CEQA Environmental Process - EIR

On November 29, 2023, the San Francisco Planning Department published a Draft Environmental Impact report (EIR) for the Islais Creek Bridge Project, and the document was circulated for a seven-week public review and comment period.  Written comments and comments during a public hearing were received and are currently being addressed in the development of the final EIR. The Notice of Availability and the Draft EIR are available to download electronically at sfplanning.org/sfceqadocs. 

NEPA Environmental Process – Draft EA

On March 1, 2025, San Francisco Public Works published a Draft Environmental Assessment (Draft EA), prepared in accordance with the National Environmental Policy Act (NEPA).   San Francisco Public Works, in coordination with the California Department of Transportation (Caltrans) assigned as NEPA lead agency by the Federal Highway Administration (FHWA), has studied this project’s potential physical environmental effects and welcomes your comments on the adequacy of the Draft EA. 

You may click the link below to access and review the NEPA Environmental Documents including the Draft EA and supporting documents.  The Draft EA is also available for public review at the San Francisco Public Works office, 49 South Van Ness Avenue, Second Floor, Permit Center Public Review Room, San Francisco, CA 94103, and at the Caltrans District 4, Office of Local Assistance, 111 Grand Avenue, 12th Floor, Oakland, CA.

NEPA – Environmental Documents

To learn more about the purpose of this document, please read the Draft EA and/or attend an in-person public meeting on March 18, 2025 at 6:00pm at the Southeast Community Center at 1550 Evans Avenue, San Francisco, CA 94124. 

If you have any comments about the proposed project please submit your written comments to San Francisco Public Works by April 17, 2025.
 

• By postal mail: Thomas Roitman, Project Manager, 49 South Van Ness Avenue, Suite 700, San Francisco, CA 94103
• By email: thomas.roitman@sfdpw.org

This website will be periodically updated to reflect updates about the project design, the environmental process, and to share more details about the detours and transit plans as the project gets closer to construction.