Dumbarton
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SamTrans Survey Abandons Dumbarton Rail
What happened to the possibility of using the corridor for its original purpose? Advocates need to get this project back on tracks
January 22, 2026
Caltrans D4 Gets Another “Environmental” Award for Highway Widening
Why actually try to fight global warming and make a more sustainable future when you can just lie about it?
February 22, 2023
Op-ed: Don’t Squander the Dumbarton Rail Corridor
The Dumbarton Rail Corridor project provides a once in a century opportunity to construct a vital link that would support an expanded and integrated public transportation network throughout the greater Bay Area region, including coordinated heavy rail connections linking the San Joaquin Valley, Tri-Valley, East Bay and the Mid-Peninsula markets. A high-capacity state-of-the-art heavy rail artery along the Dumbarton Rail Corridor (Corridor) is needed to realize this objective.
July 16, 2021
Pod People Drive Dumbarton Rail Study
Latest Dumbarton study based on dubious assumptions
March 19, 2021
Dumbarton Project Burned Again?
In the time of COVID and work-from-home, Facebook is talking about backing off its financial support for a Dumbarton rail connection
May 26, 2020
Another Study on Dumbarton Rail
Could a public private partnership finally bring trains (and bikes!) back to the long defunct line?
February 26, 2019
Dumbarton Study Outreach Begins Tonight
The San Mateo Transit District (SamTrans) released its report today on improving transportation links across the Dumbarton bridge and right of way. The agency will be soliciting public comment on the document--which runs 267 pages--over the next couple of months. The study proposes phased implementations of improved bus services and, somewhere down the line, rebuilding either a one-or-two track rail bridge that would eventually permit Caltrain to connect the job centers of the Peninsula with the East Bay. The full report is available for download here.
August 15, 2017
Dumbarton Study Update with SamTrans Planning Director
Last January, Streetsblog reported on a Facebook-SamTrans collaboration to study transit uses for the Dumbarton rail corridor. The study is now about halfway completed and it's already inspiring some intriguing ideas about how to use this asset.
March 8, 2017