FINAL UPDATE: Delay at Ocean and Jules has cleared. IB #KIngleside resuming service. (More: 12 in last 48 hours)

Across Town in 7 Minutes? 4th & King Work Makes Key Central Subway Link

Friday, November 20, 2015

Thanks, San Francisco! After more than eight days of around-the-clock construction, track installation at 4th & King streets for the Central Subway was completed on time last weekend.

This is a critical link that allows us to extend the existing T Third rail line up 4th Street and then underground to the Moscone Center, Union Square and Chinatown.

With the Central Subway extension, the T Third Line is projected to be the city’s most-used Muni Metro line by 2030. Starting in 2019, riders should be able to get from the Caltrain Station at 4th and King streets to Chinatown in seven minutes. How’s that for an answer to traffic congestion? 

Here’s a glimpse of some of the many faces that were part of this recent “all-hands” effort.

Group of construction workers stand and kneel at night with safety vests and hard hats with the Caltrain station behind them.
Crew members worked night and day to complete Phase 2 of the track installation.

Crew members in safety vest and hard hats stand next to tracks being installed at 4th and King at night. Welding gear and safety strips are glowing
Crews prepare the permanent tracks for the foundation pour.

The work on a key connection piece for the San Francisco Municipal Transportation Agency’s Central Subway extension of the T Third Light Rail Line started the night of Nov. 6 and went through Nov. 14. Crews worked non-stop to put in track and infrastructure that will ultimately link the northern and southern quadrants of the city’s transit system.

It was an “all-hands” effort to get the word out about the work to customers, drivers, neighbors, pedestrians and visitors to the city.

Man wearing a safety vest stands in front tv cameras and reporters.
Central Subway Program Director John Funghi tells media crews about the work at 4th & King and provides a look at the tunnel portal at 4th & Bryant streets.


A woman in a safety vest and hard hat holds up a stop sign in the middle of the 4th and King intersection.
A flagger works at the intersection of King & Third streets in the early morning hours of construction.

A police officer wearing a reflective safety jacket stands in front of construction equipment.
San Francisco Police Officer Faye at the intersection of 4th & King streets helps keep vehicles moving.

A man and woman stop to get directions and information from one of the project ambassadors in a black jacket and yellow safety vest. King Street and construction equipment are in the background.Ambassadors provide directions and help customers get to their transit connections.

High-angle photograph of the 4th and King construction site with crews in safety vests and hard hats with a Muni bus and other traffic in the background.
North-facing view of track work at the corner of 4th & King. The Central Subway extension of the T Third line will run on the surface up 4th Street until the tunnel portal at 4th & Bryant. 

Construction and project staff in safety gear stand on either side of a Muni train as the operator tests the new tracks..
Trains are tested prior to re-opening of revenue service.

Heavy construction along the alignment, which features stops in the South of Market area, or SoMa, Yerba Buena, Union Square and Chinatown began in 2012. With more than 50 percent of the work done, and two tunnels for the trains completed, the project is currently focused on building stations and installing track and signal equipment. When open to the public in 2019, the Central Subway will vastly improve transit options for the residents of one of the most densely populated neighborhoods in the country, provide a rapid transit link to a burgeoning technology and digital-media hub, and improve access to a premier commercial district and tourist attractions.