This 2.1 km rail tunnel in United States forms a critical section of the Caltrain Downtown Extension (The Portal / DTX) corridor. The line uses 25 kV AC 60 Hz electrification and 1435 mm standard gaug USA Los Angeles Metro D Line Extension · Brightline West (Las Vegas – Rancho Cucamonga High-Speed Rail) · USA Phoenix Valley Metro Extension · MTA New York · AECOM · News
Caltrain Downtown Extension (The Portal / DTX) is a commuter rail project in United States, currently approved.
This 2.1 km rail tunnel in United States forms a critical section of the Caltrain Downtown Extension (The Portal / DTX) corridor. The line uses 25 kV AC 60 Hz electrification and 1435 mm standard gauge. Transbay Joint Powers Authority (TJPA) is delivering the project. Target opening is 2035, with an investment of USD 7.6 bn.
Completion is expected in 2035.
The project has an estimated investment of $7.57B.