The California High-Speed Rail cost estimate has been revised downward in the Draft 2026 Business Plan issued by the California High-Speed Rail Authority (as detailed in its official update from the California High-Speed Rail Authority) for a 60-day public review and comment period.

High-Speed Rail Installation Accelerates Across California
Photo: State of California

The plan lays out updated cost projections and delivery proposals for the state’s high-speed rail programme, as reported by Railway-News and as previously covered by Railway Supply.

Also, the authority says the estimated cost of delivering Phase 1 — linking San Francisco with Los Angeles and Anaheim — has fallen by 1.7 billion USD. In addition, it attributes the reduction to streamlining measures intended to accelerate construction and manage expenditure.

Draft 2026 Business Plan sets a phased delivery path

Under the draft, the California High-Speed Rail Authority proposes completing the initial operating segment between Merced and Bakersfield before extending services to larger population centres to generate operating revenue.

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It also refers to potential private financing, legislative changes and partnerships designed to support long-term funding.

Authority Board Chair Tom Richards said:

The Draft 2026 Business Plan sets out the path forward: completion of Merced to Bakersfield, expansion to major population centres for revenue positive service, and early asset commercialisation to produce additional revenue to build out high-speed rail. It explains how we build from progress underway, prioritize investments that produce early and durable commercial benefits, and create the conditions for long-term financial strength and private-sector participation as the system expands.

The authority adds that the draft reflects established international practices in high-speed rail development, including phased delivery and asset commercialisation to support future growth.

Consultation dates and how to submit comments

Separately, the consultation period runs from 28 February to 29 April. Members of the public may submit comments via an online form, by email, by post to the authority’s Sacramento headquarters, or in person during the public comment section of the board’s meeting on 4 March 2026.

Central Valley build-out and environmental clearance progress

Meanwhile, construction activity continues across the Central Valley, where 171 miles of the route between Merced and Bakersfield are under design or construction. Nearly 80 miles of guideway have been completed, alongside almost 60 major structures. A further 29 structures are currently under way in Madera, Fresno, Kings and Tulare counties.

At the same time, statewide, 463 miles of the planned 494-mile corridor between San Francisco and Los Angeles/Anaheim have received full environmental clearance and are described as ready for construction.

Still, since works began, the project has supported more than 16,400 construction jobs, with up to 1,700 workers on site each day. The authority estimates the scheme has generated close to 25 billion USD in economic activity across California to date.

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