Construction Update | May 11-20
Crews continue to install subsurface pipes on 4th Street between Market and Stevenson. When the tunnel boring machines pass below, we will use to inject grout into the ground and improve soil conditions here.
During the next 10 days, construction to prepare for tunneling will continue in SoMa and Union Square. No Central Subway construction is planned in Chinatown or North Beach.
For descriptions of construction impacts in each neighborhood, click here or on 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 May 20:
- Southern SoMa (Harrison to King/Berry): The on-ramp to westbound I-80 will remain open next week. Full closure of 4th Street between Harrison and Bryant will continue on some evenings and weekends. Two lanes of traffic will remain open on this block on at all other times. Please contact us at central.subway@sfmta.com if you have questions about the closure schedule. On Bryant Street at 5th Street, the left lane and several parking spaces will remain closed.
At these locations, current construction impacts are planned to continue until May 20:
- Northern SoMa (Market to Harrison): On 4th Street between Market and Stevenson, the sidewalk and two traffic lanes will remain closed on the eastern side of the street. Two lanes of traffic will remain closed on 4th Street between Howard and Folsom.
- Union Square: Stockton Street between Geary and Ellis will remain closed to vehicle traffic. Ellis Street between Stockton and Powell will remain closed to westbound traffic.
- 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.
