Construction update | March 9-18
A covered walkway has been installed on Stockton Street next to the site where crews are installing underground walls.
During the next 10 days, construction to prepare for tunneling will continue in SoMa and Union Square. No Central Subway construction is planned to occur in Chinatown or North Beach.
Descriptions of construction impacts in each neighborhood are available here or at the links below. We also post construction, traffic detour and Muni impact information on our project Google Map.
Construction impacts are planned to change at these locations by March 18:
- Southern SoMa (Harrison to King/Berry): Full closure of 4th Street between Harrison and Bryant will be in effect from Friday, March 8, at 8 p.m. until Sunday, March 10. At all other times, two lanes of traffic will remain open on this block. Launch box construction will continue.
- Union Square: Starting next week, the contractor will begin working extended hours (until 10 p.m.) on weekdays and during the day on Saturdays. Stockton Street between Geary and Ellis will remain closed to vehicle traffic. Ellis Street between Stockton and Powell will remain closed to westbound traffic.
At these locations, current construction impacts are planned to continue until March 18:
- Northern SoMa (Market to Harrison): One lane will remain closed to traffic on 4th Street between Market and Stevenson. Two lanes of traffic will remain closed on 4th Street between Howard and Folsom. One lane will remain closed on 4th Street between Folsom and Harrison.
- Chinatown: No construction planned
- North Beach: No construction planned
We appreciate your patience and support while we build this essential upgrade to San Francisco’s public transportation system.
