BuildHSR: High-Speed Rail Projects
Tulare Street Undercrossing Opens
The California High-Speed Rail Authority (Authority), local and state leaders celebrated the completion of the Tulare Street Grade Separation project with a ribbon-cutting ceremony in Fresno’s Historic Chinatown. Located near the future site of the nation’s first high-speed rail station, the grade separation reconnects Fresno’s historic Chinatown and downtown, while improving safety and reducing greenhouse gas emissions and unhealthy pollutants.
Construction by the Numbers (As of June 2025)
Construction Progress
Structures Completed
Miles of Guideway Completed
Structures Underway
Miles of Guideway Underway
Structures to begin
Miles of Guideway to begin
Construction Update
State Route 43 Tied Arch Bridge
The construction team recently completed the installation of all 44 hanger guide pipes, which are designed to house the tension rods that help support the structure. Falsework has also been erected to help ironworkers tie rebar for the future arches that will span over State Route 43. When complete, the Tied Arch Bridge will span 249 feet long and will take high-speed trains over State Route 43! #BuildCA #BuildHSR #InfrastructureWeek
Construction by the Numbers (As of June 2025)
Small Business Revenue
Construction Package 1
Construction Package 2-3
Construction Package 4
Construction Update
Spring 2025
Read all about the progress being made on the 119-miles of construction in the Central Valley. This includes updates to some of the largest projects including the Conejo and Hanford Viaducts.
Construction by the Numbers (As of June 2025)
Number of Small Businesses
Construction Package 1
Construction Package 2-3
Construction Package 4
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Closures and Detours
Road Closure Along Sarah Street In Fresno
Road closure along Sarah Street, between Florence Avenue and G Street in Fresno for utility work. Work is scheduled from 9 a.m. to 4 p.m. and will continue through Friday, Sept. 26, 2025. Download Map of Closure/Detour (PDF)Signage will be in place to direct traffic....
Material Haul Along Avenue 56 In Tulare County
Intermittent traffic impacts along Avenue 120, Road 264, Avenue 95, Road 192, and Avenue 56 in Tulare County to transport materials to a high-speed rail construction site. Hauling is scheduled from 6 a.m. to 6 p.m. starting Wednesday, Sept. 17 through Wednesday, Oct....
Material Haul Along Avenue 120, Road 264, Avenue 95, Road 192, Avenue 56, State Route 43, And Avenue 88 In Tulare County
Intermittent traffic impacts along Avenue 120, Road 264, Avenue 95, Road 192, Avenue 56, State Route (SR) 43, and Avenue 88 in Tulare County to transport materials to a high-speed rail construction site. Hauling is scheduled from 6 a.m. to 6 p.m. starting Monday,...
Road Closure Along Jersey Avenue In Kings County
Road closure along Jersey Avenue, between SR 43 and Ninth Avenue in Kings County for construction of a high-speed rail grade separation. Work will continue through March 2026. Download Map of Closure/Detour (PDF)EASTBOUND TRAFFIC FROM NINTH AVENUE DETOUR: Traffic...
Hauling Along State Route 43, Denver, Ninth, And Cairo Avenues In Fresno And Kings Counties
Hauling along SR 43, Denver, Ninth, and Cairo avenues in Fresno and Kings counties to transport materials to a high-speed rail construction site. Work is scheduled from 6 a.m. to 6 p.m. starting Monday, Sept. 15 through Friday, Sept. 19, 2025. Download Map of...