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

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.”
FULL STORY: A new train tunnel across the Bay? Here are early maps

Manufactured Crisis: Losing the Nation’s Largest Source of Unsubsidized Affordable Housing
Manufactured housing communities have long been an affordable housing option for millions of people living in the U.S., but that affordability is disappearing rapidly. How did we get here?

Americans May Be Stuck — But Why?
Americans are moving a lot less than they once did, and that is a problem. While Yoni Applebaum, in his highly-publicized article Stuck, gets the reasons badly wrong, it's still important to ask: why are we moving so much less than before?

Using Old Oil and Gas Wells for Green Energy Storage
Penn State researchers have found that repurposing abandoned oil and gas wells for geothermal-assisted compressed-air energy storage can boost efficiency, reduce environmental risks, and support clean energy and job transitions.

Greening Oakland’s School Grounds
With help from community partners like the Trust for Public Land, Oakland Unified School District is turning barren, asphalt-covered schoolyards into vibrant, green spaces that support outdoor learning, play, and student well-being.

California Governor Suspends CEQA Reviews for Utilities in Fire Areas
Utility restoration efforts in areas affected by the January wildfires in Los Angeles will be exempt from environmental regulations to speed up the rebuilding of essential infrastructure.

Native American Communities Prepare to Lead on Environmental Stewardship
In the face of federal threats to public lands and conservation efforts, indigenous groups continue to model nature-centered conservation efforts.
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