The California High-Speed Rail Authority (Authority) has previously certified two Program Environmental Impact Reports/Environmental Impact Statements (EIR/EIS) (Tier 1) as the first phase of a tiered environmental review process for the proposed California High-Speed Rail (HSR) System planned to provide a reliable, high-speed, electric-powered rail system that links the major metropolitan areas of the state and delivers predictable and consistent travel times A further objective is to provide an interface with commercial airports, mass transit, and the highway network and to relieve capacity constraints of the existing transportation system as increases in intercity travel demand in California occur, in a manner sensitive to and protective of California's unique natural resources. Based on the Program EIR/EIS documents, the Authority selected preferred corridors and station locations to advance for additional study.
The Authority has prepared an EIR/EIS that further examines the San Jose to Merced Project Section at the project level (Tier 2) within Santa Clara, San Benito, and Merced Counties. This project section includes two stations (in San Jose and in Gilroy) and spans approximately 90 miles, beginning at Scott Boulevard in Santa Clara and ending at Carlucci Road, the western limit of the Central Valley Wye, in Merced County. The San Jose to Merced Project Section Preferred Alternative extends blended electric-powered passenger railroad infrastructure from the southern limit of Caltrain's Peninsula Corridor Electrification Project through Gilroy. South and east of Gilroy, HSR would operate on a dedicated guideway, continuing east through the Pacheco Pass to the Central Valley. The Preferred Alternative will comprise 15.2 miles on viaduct, 30.3 miles at grade, 25.9 miles on embankment, 2.3 miles in trench, and two tunnels totaling 15.0 miles.
Through Resolution #HSRA 22-11, the Authority has approved the San Jose to Merced Project Section Preferred Alternative (Alternative 4 with the Diridon and tunnel design variants, the San Jose Diridon and Downtown Gilroy Stations, the maintenance of way facility south of Gilroy, and a maintenance of way siding west of Turner Island Road in the Central Valley), as shown on the attached map.