California’s high-speed rail project has completed four more structures in Kings and Tulare counties, bringing the total to 66 completed major structures along the first 119 miles of construction.

The California High-Speed Rail Authority announced the milestone on October 7, 2026. The work is an infrastructure milestone, not the start of passenger service, and the announcement does not establish a new opening date for the full system.

The four completed structures

  • State Route 43 Curved Bridge: a 660-foot-long road bridge north of Corcoran that carries vehicles over the future high-speed rail tracks.
  • Cross Creek Viaduct: a structure spanning more than 2,500 feet that will carry future trains over the waterway.
  • Tule River Viaduct: a 3,573-foot viaduct in Tulare County spanning State Route 43, the Tule River and existing freight tracks.
  • Avenue 136 Underpass: a cast-in-place structure south of the Tule River Viaduct that will carry future trains over two-way road traffic.

Why the grade separations matter

Grade separations reduce direct conflicts between road traffic and rail infrastructure. The Authority estimates the four completed structures will produce $466 million in safety benefits over 30 years.

For the Tulare County grade separations, the agency projects $329 million in safety benefits and 1,604 crashes prevented over 30 years. Those are forward-looking agency estimates covering fatal, injury and property-damage collisions—not savings already realized.

Current project status

According to the Authority, nearly 90 miles of guideway are complete. Sixty-six major structures are finished and 30 more are underway across Madera, Fresno, Kings and Tulare counties. Segments from Merced to Bakersfield remain in design and construction.

The agency also reports that 463 of the planned 494 miles between San Francisco and Los Angeles/Anaheim have completed environmental clearance. Environmental clearance does not mean every segment is funded or under construction.

What Central Valley drivers should do

Construction activity can still affect local roads near active work zones. Drivers should check Caltrans QuickMap and BuildHSR construction updates before traveling through affected corridors.

California58’s Community Impact and Civic Information section explains how statewide projects connect to local communities and public information.

Official source

California High-Speed Rail Authority: Four New Structures Push Progress to 66 Completed

Project status and structure details verified against the California High-Speed Rail Authority release dated October 7, 2026. Featured graphic: California High-Speed Rail Authority.

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