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 July 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 August 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 August 2025)
Number of Small Businesses
Construction Package 1
Construction Package 2-3
Construction Package 4
Click Below for More Information
Closures and Detours
Hauling Along Grangeville Boulevard, Road 68, Tulare Avenue, Kansas Avenue, State Route 43, Orange Avenue And Fifth Avenue In Kings County
Hauling along Grangeville Boulevard, Road 68, Tulare Avenue, Kansas Avenue, State Route (SR) 43, Orange Avenue and Fifth Avenue in Kings County to transport girders to a high-speed rail construction site. Hauling is scheduled intermittently between 6 a.m. and 6 p.m....
Multiple Road Closures Along Van Buren And Farrington Avenues In Fresno
Multiple Road Closures: Road closure along Van Buren Avenue between Elgin and Farrington avenues; Road closure along Farrington Avenue between Weber and Thiele avenues. Work will continue through Monday, Nov. 10, 2025. Download Map of Closure/Detour (PDF)Signage will...
Intermittent Traffic Impacts Along Lacey Boulevard In Kings County
Intermittent lane closures along Lacey Boulevard, between State Route 43 and Seventh Avenue in Kings County for ongoing work at the Hanford Viaduct. Work is scheduled from 6 a.m. to 4 p.m. beginning Thursday, October 30 through Saturday, November 15, 2025. Download...
Multiple Closures Along Golden State Boulevard and Kathryn Avenue in Fresno
Mulitple Closures: Intermittent lane closures along Golden State Boulevard, north of Herndon Avenue; Intermittent lane closures along Kathryn Avenue, west of Golden State Boulevard. Work is scheduled from 9 a.m. to 4 p.m. starting Monday, Oct. 27 through Friday, Nov....
Intermittent Lane Closures Along West And Weber Avenues In Fresno
Multiple Lane Closures: Lane closure along West Avenue between University and Brooks avenues; Lane closure along Weber Avenue between Brooks and Olive avenues. Work is scheduled from 9 a.m. to 4 p.m. starting Tuesday, Oct. 28 through Tuesday, Nov. 11, 2025. Download...