Skip to Content
Streetsblog California home
Streetsblog California home
Log In
Streetsblog SF

Eyes Under the Street: A Tour of the Transbay Train Box

Skip Sowko, Senior Design & Engineering Manager, showed Streetsblog around the huge ‘train box’ under the new Transit Center. All photos Streetsblog/Rudick unless indicated

This wraps up the first week of operations for the new Salesforce Transit Center, phase 1. Reviews are in, and most people seem to love the rooftop park and the grand design of the facility. But what about phase 2, the train station below it--and the thing that makes it the future Grand Central Station of the West?

This morning, Streetsblog got a private tour of the two subterranean levels of the Transit Center--the future train station mezzanine and the train platform level below it. Photographs can't really do justice to the breathtaking scale of the facility, which will some day house both Caltrain and California high-speed rail. But when you walk through the grand hall and other street-level parts of the new transit center, here's a look at what's below your feet:

Location of future escalators down to the platforms to catch Caltrain and High-speed rail
Location of future escalators from the mezzanine level down to the platforms to catch Caltrain and high-speed rail
false

Natural light will get all the way down to the tracks via the 'oculus' skylight that stretches through all levels of the facility. There will be more retail on the mezzanine level, and there will be a direct pedestrian connection under Beale Street to BART and Muni at Embarcadero. And as previously reported, the powers that be are nearly finished hashing out details on the train track alignment from 4th and King to the Transit Center.

The first trains are scheduled to arrive no sooner than 2026. More pictures below.

It looks like a nuclear reactor but it's actually the bottom of the oculus--and a skylight all the way from the top to the train box
It looks like a nuclear reactor but it's actually the bottom of the oculus--the skylight all the way from the park at the top of the center to the lower level of the train box in the basement
false
The entrances for the six tracks coming in from the DTX
The entrances for the six tracks coming in from the future downtown extension tunnel
false
Another view of the oculus from the mezzanine level
Another view of the oculus from the mezzanine level
false
The turn from the platforms to where the DTX will start. This is the slot for one track of six
The giant turn from the platforms to where the downtown extension tunnel will start. This is the slot for one of the six tracks
false
A view of the mezzanine level of the future Transbay train station.
Another view of where trains will fan out from the downtown extension tunnel to the Transbay platforms
false
IMG_20180817_102219
It may not look like much, but this spot on the ceiling is where the future escalators will lead up from the train mezzanine to the grand hall
false
The area of the floor in the grand hall where the breakout box is located for the escalators
The area of the floor in the grand hall where escalators will go down to the train station level--notice no detailed artwork here, since the floor will be cut open in a few years
false
Entryway for one of the six tracks feeding in from the DTXX
Entryway for one of the six tracks feeding in from the future downtown extension tunnel
false
The pedestrian causeway joining the mezzanine to Embarcadero BART's mezzanine will go here.
The entrance for the future pedestrian causeway that will join the Transbay train station mezzanine to Embarcadero BART's mezzanine.
false
This access door is built to be flush with the future high-level train platform that will go here
This access door is built to be flush with the future high-level train platform
false
The bottom of the support structure of the Transbay occulus
The bottom of the support structure of the Transbay occulus skylight, which brings natural light all the way down to the track level
false
Some day. Image: Transbay Joint Powers Authority.
What it will all look like some day. Image: Transbay Joint Powers Authority.
false

And here's a link to a video rendering of what the train level will look like when it's done.

Stay in touch

Sign up for our free newsletter

More from Streetsblog California

CA Transportation Commission Approves Some Active Transportation Program Projects

Every single speaker on the topic urged the state to increase funding for the shrinking active transportation program - as always. It's not enough.

December 6, 2024

Friday’s Headlines

BART, ferries paused during tsunami warning; Controversial SURF! Busway moves forward; Lake Tahoe considers a "flying" ferry; More

December 6, 2024

Walkable This Way: How Fashionista Derek Guy Became One of the Nation’s Best-Known Urbanists

The menswear icon has used his vast social media platform to wade into another culture war by promoting walkable neighborhoods over the alienating lifestyle of suburban sprawl.

December 6, 2024

Media Critique: Vision Zero Was Achieved Years Ago, Just not Here

To continue to report that Vision Zero may or may not be achievable is a form of disinformation. The SF Standard needs to do better

December 6, 2024

Advocates Help Save Oakland Bus Shelters

Oakland's maintenance strategy shouldn't be to destroy the bus shelters to prevent vandalism, say advocates and more enlightened city staffers

December 6, 2024
See all posts