Maps for Proposed San Francisco Bay Tunnel Revealed

Planners presented two options for new tunnels that would help connect more parts of the Northern California megaregion to San Francisco and Oakland.

1 minute read

September 23, 2022, 8:30 AM PDT

By Diana Ionescu @aworkoffiction

Plans for a new tunnel across the San Francisco Bay are shaping up as the public finally got a look at “the most detailed maps yet” showing the proposed tunnel’s route. As Benjamin Schneider reports for the San Francisco Examiner, planners for the Link21 project revealed two options for the tunnel. “One shows BART and regional rail trains — like Capitol Corridor or Caltrain — traveling side by side in a shared alignment from Oakland and Alameda to the Salesforce Transit Center in San Francisco.”

The second option would have two tunnels separating BART and regional trains. “Both plans hint at the possibility of a BART subway down Geary Boulevard, with the blue arrows pointing west from downtown San Francisco and labeled as a ‘possible extension.’”

Across the bay in Oakland, “Jack London Square, where the A’s are hoping to build a massive development anchored by a new ballpark, and West Oakland could become major transit hubs, hosting both BART stations and regional rail stations.”

Link21 is named for the 21 counties that could be served by new connections enabled by the project.

Schneider notes that “Link21 remains a long way from reality. Project planning and approvals are expected to last through 2027. Completion is roughly projected for 2039.”

Wednesday, September 21, 2022 in San Francisco Examiner

Chicago Intercity Rail

Amtrak Ramping Up Infrastructure Projects

Thanks to federal funding from the 2021 infrastructure act, the agency plans to triple its investment in infrastructure improvements and new routes in the next two years.

September 25, 2023 - Smart Cities Dive

Google maps street view of San Francisco alleyway.

Ending Downtown San Francisco’s ‘Doom Loop’

A new public space project offers an ambitious vision—so why is the city implementing it at such a small scale?

September 26, 2023 - Fast Company

Google street view of yellow "End Freeway 1/4 mile" sign on 90 freeway in Los Angeles, California.

Proposal Would Transform L.A.’s ‘Freeway to Nowhere’ Into Park, Housing

A never-completed freeway segment could see new life as a mixed-use development with housing, commercial space, and one of the county’s largest parks.

September 26, 2023 - Los Angeles Times

Traffic on the 405 interstate freeway through the Sepulveda Pass at Getty Center Drive in Los Angeles, California

Report: Bike Lanes Can't Make up for New Roads

If California wants to meet its climate goals, the state must stop funding its myriad road construction and expansion projects.

September 29 - Streetsblog California

Late evening view of downtown Minneapolis skyline with stone bridge in foreground

Minneapolis Affordable Housing Project Largest in 20 Years

The city opened its first large multifamily affordable housing complex in decades, but a recent court ruling against the Minneapolis 2040 rezoning plan could jeopardize future projects.

September 29 - Minnesota Public Radio

Close-up of vertical PARK sign on multistory urban parking garage.

NYC Mayor Proposes Eliminating Parking Minimums

Mayor Adams wants to stop requiring off-site parking for new buildings to reduce the costs of construction as part of the ‘City of Yes’ package of zoning reforms.

September 29 - StreetsBlog NYC

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.