California High-Speed Rail Authority Completes 10-Mile Central Valley Viaduct Segment

FRESNO, CA — The California High-Speed Rail Authority (CHSRA) announced the structural completion of a major 10-mile continuous viaduct segment on Saturday, marking a crucial engineering milestone on Construction Package 1 in Madera and Fresno counties.

Engineering Milestones and Guideway Construction

The elevated concrete guideway crosses over the San Joaquin River, multiple agricultural canals, and active freight rail corridors, featuring 450 precast concrete tub girders fabricated at regional casting yards in Hanford. With structural substructures and bridge decks complete, the Authority will begin sub-ballast installation and overhead catenary mast foundation work.

The segment forms part of the 119-mile initial operating segment in the Central Valley connecting Merced, Fresno, and Bakersfield, designed for 220-mph passenger train operations.

Economic Impact and Workforce Employment

The high-speed rail project currently employs over 1,500 construction craft workers daily across Central Valley construction sites, with over 13,000 total union construction jobs created since inception.

Central Valley business leaders emphasized that completed guideway infrastructure builds investor confidence for transit-oriented commercial redevelopments planned around downtown Fresno and Bakersfield station hubs.

Track and Systems Procurement

Track and systems installation contracts will be awarded in late 2026, with prototype high-speed trainset testing scheduled on the Central Valley trackage in 2028.