During the next 10 days, Central Subway work continues at sites in SoMa, Union Square, Chinatown and North Beach. This post contains brief updates about recent construction activities and a look-ahead for what to expect in each neighborhood. 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 all traffic and pedestrian notifications posted at the work sites.
Southern SoMa (Harrison to King): Construction crews are relocating and installing new utilities along 4th Street from Harrison to King streets.
- Tentative: At the intersection of 4th and King streets, potholing work on Nov. 3 and 4.
- Night work between 7 p.m. and 5 a.m.
- At the intersection of 4th and Harrison streets, work on a high pressure water line continues.
- Two traffic lanes will remain open Monday to Friday, 7 a.m. to 3 p.m.
- Access to Interstate 80 freeway may be limited on some evenings between 8 p.m. and 5 a.m.
- On 4th Street between Bryant and Brannan streets, potholing and installation of a sewer line continues.Two traffic lanes will remain open Monday to Friday, 7 a.m. to 3:30 p.m.
Northern SoMa (Market to Harrison): Construction crews are building walls and replacing a water line along 4th Street between Howard and Folsom streets.
- Tentative: Along 4th Street between Folsom and Harrison streets, sewer line replacement to start by the end of October.
Union Square: Construction crews are excavating the site, building station walls and relocating utilities on Stockton Street between Ellis Street and Maiden Lane.
Chinatown: Construction crews are building station walls and installing new utilities on Stockton Street between Sacramento and Washington streets.
North Beach: Construction crews continue to restore the retrieval shaft site.
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.