This post contains brief updates about recent construction activities and a look-ahead for what to expect in Southern SoMa, Northern SoMa, Union Square and Chinatown over the next two weeks. For more detailed information, click here or on the links below. You can also find construction, traffic detour, and Muni impact information on our project Google Map.
Construction schedules may change due to unforeseen conditions. We encourage the public to follow traffic and pedestrian notifications posted at the work sites.
Southern SoMa (Harrison to King): Utility work along 4th Street from Harrison to King streets. Portal construction on 4th Street between Harrison and Bryant streets.
- Tentative pile installation starting week of Jan. 26 on 4th Street between Welsh and Brannan streets
Northern SoMa (Market to Harrison): Excavation of the station along 4th Street between Howard and Folsom streets. Ground improvement activites at 4th and Jessie streets.
- Two lanes on the east side of 4th Street are open between Market and Mission streets
Union Square: Excavation of the station, relocation of utilities and pile installation on Stockton Street between Ellis and Post streets.
- Ellis Street at Stockton Street is closed to vehicular traffic
- Stockton Street between Ellis and Post streets is closed to vehicular traffic
Chinatown: Excavation of the site in preparation for the installation of the station roof. Ongoing utility installation at Stockton and Washington streets.
We thank the businesses, residents, shoppers, and commuters of San Francisco for their continued engagement with this significant investment in the extension of our public transportation system. When opened in 2019, the Central Subway will provide a much-needed connection between major employment, retail, cultural and residential areas of the city.