Transbay Joint Powers Authority
1 tracked project
| Project | Region | Mode | Status | Alignment | Last Updated |
|---|---|---|---|---|---|
| The Portal (Downtown Rail Extension) | CA | commuter rail | Env. Review | Mostly underground, 2.2-mile extension of Caltrain, and later California High-Speed Rail, from the 4th & King terminus beneath Townsend and Second streets into the existing trainbox under the Salesforce Transit Center, with a new Fourth & Townsend station. The project is in the FTA Engineering phase with a $3.38 billion federal share set aside, but the funding plan is not yet complete. The state awarded $750 million in November 2026, and service is forecast for 2036. | Nov 13, 2026 |