Central Subway


Extending Muni’s T Third Line to connect San Francisco’s southeast neighborhoods with SoMa, downtown and Chinatown. Follow us for project news and updates.

Photos and Videos by @Central_Subway

  • Timeline
  • Gallery

Tonight at 8, 4th b/w Howard & Folsom will reduce to one lane so we can install a rebar cage into this excavation:

  • 395 days ago via site
  • 175

With tunneling about to begin, signs and celebrates the future of transit in SF.

  • 405 days ago via site
  • 119

Taken from a crane, here's a bird's eye view of our Union Square construction site.

  • 412 days ago via site
  • 489

Thanks for visiting us this morning & supporting public transit in SF. ( was beaming.)

  • 427 days ago via site
  • 97

A group of engineering students and our lead tunnel designer take a look inside a segment of

Check out this prize wheel! come to for a Central Subway lunch event and a chance to win great prizes.

Beneath 4th Street, tunnel engineer Sarah Wilson describes the tunnel construction process to reporters.

Join us and Friday at lunch to celebrate & ! Stop by 11am-2pm, 399 4th St.

  • 443 days ago via site
  • 221

PHOTO: On Ellis Street, crews are excavating and stabilizing a shaft that will be used for ground improvements.

  • 447 days ago via site
  • 93

PHOTO: A view from above: Tunneling preparation is underway at the future Union Square/Market Street Station site.

  • 499 days ago via site
  • 151

PHOTO: This week crews worked to build a ramp into the tunnel launch box, where tunneling will begin.

  • 524 days ago via site
  • 93

Tunneling begins this year within this excavation, called a launch box. Launch box construction remains underway.

  • 531 days ago via site
  • 117

One lane of 4th Street b/w Stillman and Bryant is now reopened to traffic (Stillman is b/w Harrison and Bryant).

  • 569 days ago via site
  • 104

Muni fun fact: The historic F Stockton streetcar traveled a similar route to the Central Subway #throwbackthursday

  • 630 days ago via site
  • 248

Congrats ! and were overjoyed when the hometown team clinched the NLDS title:

  • 637 days ago via site
  • 147

Thanks , , , , , for supporting #transit in SF.

  • 637 days ago via site
  • 147

TBMs consist of a cutter head, a shield and a very long tail. This part is a component the cutter head.

  • 643 days ago via site
  • 93

We're installing decorative banners along Stockton Street. Shop during Central Subway construction!

  • 657 days ago via site
  • 77

Featured photo: This block of Stockton Street closed to traffic today. Drivers - Detour info here: ow.ly/cBgNc

  • 710 days ago via site
  • 145

Featured construction photo: The 10-foot-tall, 15-ton, claw-like hydraulic excavator known as a "grab."

  • 743 days ago via site
  • 107

1 2 3 Next