Islais creek Bridge Project
4 Documents in Project
Summary
SCH Number
2023060006
Lead Agency
City and County of San Francisco
Document Title
Islais creek Bridge Project
Document Type
NOD - Notice of Determination
Received
Posted
12/15/2025
Document Description
The Isla is Creek Bridge is on Third Street over the Isla is Creek channel in San Francisco's Bayview neighborhood. The project would demolish and replace the existing Isla is Creek Bridge, including all electrical equipment and drive machinery needed to open the existing drawbridge. The proposed replacement bridge would meet current structural and seismic standards and would be resilient to predicted
sea-level-rise impacts up to the year 2100. The proposed bridge design would be a 115-foot-long, 105-footwide,single-span precast/prestressed concrete adjacent box beams bridge. The bridge would accommodate a center 24-foot-wide dedicated light rail trackway, two 11-foot-wide travel lanes in each direction, a 12-footwide
Class I pedestrian path on the eastern side of the bridge, and a 17-foot-wide Class I shared pedestrian/bicycle path on the western side of the bridge.
Although project construction is anticipated to extend for a total duration of approximately24 months, publicaccess to the bridge (e.g., use· of the existing light rail and access for vehicular, bicycle, and pedestrian traffic)
would continue for the first five months during the early phases of construction. There would be no access for vehicles, light rail, or pedestrians to the project area once the bridge is closed to the public. Following construction of the new-bridge, pedestri~·n access and vehicular traffic are expected to resume earlier than
the full 24-month duration, with vehicle traffic potentially reopening as soon as 15 months after bridge closure, even while project close-out and early operations-related activities are still underway. Light rail operations are anticipated to require additional activities prior to reopening and therefore, are anticipated to
resume 19 months after bridge closure. The SFMTA, in coordination with San Francisco Public Works, would develop a comprehensive community engagement and mobility strategy for the bridge closure. The Mobility
Strategy would address the rerouting plans around the lslais Creek Bridge and T-Third (and 19-Polk bus, as applicable) bridge plans and would also identify ways to reduce effects to the mobility networks for all users (e.g., private vehicles, buses, people walking and bicycling).
Contact Information
Name
Chelsea Fordham
Agency Name
San Francisco Planning Department
Job Title
Senior Planner
Contact Types
Lead/Public Agency
Phone
Name
Thomas Roitman
Agency Name
San Francisco Department of Public Works
Job Title
Project Applicant
Contact Types
Project Applicant
Phone
Email
Location
Cities
San Francisco
Counties
San Francisco
Regions
Citywide
Cross Streets
Third Street between Cargo Way and Marin Street
Zip
94124
Railways
SFMTA
Notice of Determination
Approving Agency
City and County of San Francisco
Approving Agency Role
Lead Agency
Approved On
County Clerk
San Francisco
Final Environmental Document Available at
49 South Van Ness Avenue, Suite 1400, San Francisco, CA, 94103
Determinations
(1) The project will have a significant impact on the environment
Yes
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
Yes
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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