About 80 miles of guideway have been built on California’s high-speed rail project, all of it inside a single 119-mile construction zone in the Central Valley.1CA High-Speed Rail Authority. Project Overview That is roughly two-thirds of the active construction area and a small fraction of the 494-mile Phase 1 line planned between San Francisco and Los Angeles. No track, overhead wires, signaling, stations, or trains have been installed anywhere on the system. What exists today is bare concrete and steel.
What the 80 Completed Miles Actually Are
The finished mileage is civil guideway: the viaducts, trenches, embankments, and grade separations that will one day carry trains at up to 220 mph. It is the foundation of a railroad, not a railroad. Along with the 80 guideway miles, the Authority reports 58 structures completed and 99 percent of required property acquired across the 119-mile zone.1CA High-Speed Rail Authority. Project Overview
The construction zone runs from north of Madera to just south of Shafter in Kern County, cutting through Madera, Fresno, Kings, Tulare, and Kern counties.2CA High-Speed Rail Authority. Central Valley – California High Speed Rail It sits inside a longer 171-mile Initial Operating Segment planned from Merced to Bakersfield, with the extensions at each end still in pre-construction. The state chose the Central Valley for the first construction because the terrain is flat, tunneling was not required, and environmental clearance was already in hand.
Progress by Construction Package
The 119-mile zone is split into three design-build contracts, and their status varies significantly.
Construction Package 4, the 22-mile southern stretch, is substantially complete. All guideway, structures, and utility relocations are finished.3California High-Speed Rail Authority. 2026 Draft Business Plan
Construction Package 1, the 32-mile northern section, is the furthest behind despite having the longest construction history. As of December 2025, 22 of its 33 structures and 11 of its 32 guideway miles were done, with substantial completion expected in 2026.3California High-Speed Rail Authority. 2026 Draft Business Plan Construction Package 2-3 covers the 65-mile middle stretch.
Utility relocations have been a persistent drag on the northern packages. As of March 2025, crews had relocated 1,548 of 1,826 total utilities across all three packages, about 85 percent. Package 4 was at 100 percent; Packages 1 and 2-3 sat at 82 and 86 percent.4California High-Speed Rail Authority. Central Valley Status Report – May 29, 2025 An unfinished relocation can block guideway work behind it, which is part of why CP1’s mileage lags.
The Authority’s 2026 Draft Business Plan lists substantial completion of Packages 1 and 2-3 as a milestone anticipated for 2026.3California High-Speed Rail Authority. 2026 Draft Business Plan That would close out the civil phase across the 119-mile zone. It would not produce a working railroad.
What Still Has to Be Built Before a Train Can Run
Nothing above the concrete has been installed. Rails, overhead catenary wires, power distribution, train control and signaling, communications — none of it exists on the completed guideway. The Authority advertised a request for proposals for track and systems installation in November 2025, with bids due in March 2026.5California High-Speed Rail Authority. Track and Systems Construction Contract RFP
Trains are also outstanding. Alstom and Siemens were shortlisted for the high-speed trainset contract, which covers design, manufacturing, testing, commissioning, and 30 years of maintenance, but no award date has been announced.6CA High-Speed Rail Authority. High-Speed Trainsets and Related Services The 2026 Draft Business Plan schedules delivery of the first trainset for the fourth quarter of 2026, contingent on the contract being finalized.3California High-Speed Rail Authority. 2026 Draft Business Plan Stations, including the Fresno station, still need to be built.
Even after installation is complete, the Federal Railroad Administration must certify the system for passenger service. New high-speed equipment falls under a proposed Tier III classification for trains running up to 220 mph. Before any paying rider boards, the Authority must submit a pre-revenue safety validation plan at least 60 days ahead of service, run a simulated service demonstration period, and obtain explicit FRA approval.7Federal Register. Passenger Equipment Safety Standards – Standards for High-Speed Trainsets
When Might Trains Actually Run
The 2026 Draft Business Plan targets 2032 for completion of the 171-mile Merced-to-Bakersfield segment and the start of revenue passenger service.3California High-Speed Rail Authority. 2026 Draft Business Plan The Authority’s Central Valley page references electrified high-speed testing beginning in 2028.2CA High-Speed Rail Authority. Central Valley – California High Speed Rail
Read those dates against the project’s history. Proposition 1A, approved by voters in 2008, envisioned service by 2020. The 2012 business plan pushed that to 2029. The target has continued moving since. Two funding-related risks now sit directly on the schedule: the track-and-systems contract has not been awarded, and the trainset procurement was partly funded by federal money that has since been terminated.
What’s Finished Outside the Central Valley
The one operational piece of infrastructure the Authority helped fund is Caltrain electrification. The Authority contributed $714 million toward the 51-mile electrified corridor between San Francisco and San Jose, which launched service in 2024.1CA High-Speed Rail Authority. Project Overview High-speed trains are planned to eventually share that track. It is not yet connected to anything in the Central Valley.
Environmental clearance has been completed across 463 of the 494 Phase 1 miles, including the 38-mile Palmdale-to-Burbank segment cleared in 2024.1CA High-Speed Rail Authority. Project Overview Clearance permits advanced design and right-of-way acquisition. It is not construction, and no funding has been identified to build the mountain crossings at either end of the Central Valley. The northern route requires more than 15 miles of tunnels through the Pacheco Pass, where geotechnical investigations have not yet begun.8CA High-Speed Rail Authority. Northern California – California High Speed Rail The southern route requires a crossing of the Tehachapi range.
Why the Completion Picture May Not Change Quickly
In 2025, Transportation Secretary Sean Duffy announced that the Federal Railroad Administration was terminating approximately $4 billion in unspent federal grants, citing a compliance review finding that the Authority “does not have a viable path” to complete the initial operating segment by 2033 as required under its federal grant agreements.9U.S. Department of Transportation. Trump’s Transportation Secretary Sean P. Duffy Pulls the Plug on $4B California High-Speed Rail The terminated funds included portions of a $3.1 billion Federal-State Partnership grant earmarked for trainset procurement, the Fresno station, and design work on the Merced and Bakersfield extensions.10California High-Speed Rail Authority. Federal Grants The U.S. House also passed a provision that would make the project permanently ineligible for future federal funding.11Congressman Kevin Kiley. Federal Funding Cut Off for CA High-Speed Rail Project
The immediate consequence for construction is that the next big milestones after the civil guideway, particularly the trainsets and the Fresno station, lose a funding source the Authority had been counting on. Substantial completion of Construction Packages 1 and 2-3 is still expected in 2026 based on the current plan, but everything that turns finished guideway into a running railroad now depends on state funding, litigation over the terminated grants, or a future change in federal policy.