Contract 66 New Traffic Signals

The Contract 66 New Traffic Signals project will construct new traffic signals at twelve locations, construct upgrades to existing traffic signals at one location, and construct a new pedestrian activated flashing beacon at one location.  All new traffic signals and signal upgrades constructed by this project will include pedestrian countdown signals (PCS), accessible pedestrian signals (APS), traffic signal controllers, conduits, wiring, and poles. New handicap accessible curb ramps will be constructed at certain locations where they are missing or in need of replacement.

Eight of the fourteen project locations are on the Vision Zero High Injury Network. The planned improvements are intended to reduce injuries for pedestrians, cyclists, and motorists in addition to clarifying the right-of-way for all users.

The project was made possible in part by Sales Tax dollars provided by the San Francisco County Transportation Authority and other local funds. Select locations are funded in whole or in part by contributions from developers.

Project Locations

• 4th Avenue and Fulton Street, new traffic signals
• 4th Street and Long Bridge Street, new traffic signals, developer funded
• 4th Street and Mission Rock Street, new pedestrian activated flashing beacons, developer funded
• 10th Avenue and Lincoln Way, new traffic signals
• 28th Street and Guerrero Street, new traffic signals
• 39th Avenue and Fulton Street, new traffic signals
• 41st Avenue, Chain of Lakes Drive, and Lincoln Way, new traffic signals
• 45th Avenue and Lincoln Way, new traffic signals
• Alemany Boulevard and Cotter Street, new traffic signals
• Castro Street, Divisadero Street, and Waller Street, new traffic signals
• Cesar Chavez Street and Florida Street, new traffic signals
• Great Highway and Lincoln Way, traffic signal upgrades
• La Playa and Lincoln Way, new traffic signals
• Mary Street, Mint Street, and Mission Street, new traffic signals, developer funded

Public Hearing

New traffic signals proposed at 45th Avenue/Lincoln Way and La Playa/Lincoln Way were presented at an engineering public hearing held on October 3, 2025 and were subsequently approved by the City Traffic Engineer. Changes at these intersections requiring the approval of the SFMTA Board of Directors was considered and subsequently approved at their December 16, 2025 meeting.

All other new traffic signals, pedestrian activated flashing beacons, and other traffic changes proposed as part of the Contract 66 New Traffic Signals project were presented at an engineering public hearing held on October 21, 2022. Changes requiring the approval of the SFMTA Board of Directors were considered and subsequently approved at their December 6, 2022 meeting.