The long-delayed California high‑speed rail project has reached a new milestone with the completion of a major underpass in Fresno, restoring a key transportation link between downtown Fresno and the city’s southwest side and Chinatown, according to a release issued by the California High‑Speed Rail Authority.

The High Speed Rail Project Underpass Update

The California High‑Speed Rail Authority announced on March 13 that construction of the Cesar Chavez Boulevard underpass is now complete and open to traffic, marking one of the most visible local benefits of the state’s massive rail initiative to date.

The underpass allows vehicles, cyclists and pedestrians to pass beneath existing freight tracks and the future high‑speed rail line, eliminating long‑standing barriers that had divided neighborhoods for decades.

Located less than a mile from the planned Fresno high‑speed rail station, the underpass reconnects downtown Fresno with southwest Fresno and the city’s historic Chinatown.

Officials say the grade separation improves safety and traffic flow while helping reduce greenhouse gas emissions in an area that has historically produced a disproportionate share of pollution.

The Cesar Chavez Boulevard underpass spans more than 1,000 feet and is approximately 90 feet wide, carrying traffic more than 15 feet below Union Pacific Railroad tracks and the future high‑speed rail corridor.

The design includes two travel lanes, bike lanes and protected pedestrian walkways in both directions, a feature local leaders say will improve accessibility for residents who rely on non‑vehicle transportation.

“Completing this grade separation is a major milestone that improves pedestrian and vehicular safety within the city of Fresno, while keeping us on track for the next phase of construction,” Ed Fenn, chief of construction for the High‑Speed Rail Authority, said in a statement. Fenn added that progress on remaining guideway construction is moving the project closer to laying the high‑speed rail track later this year.

City officials also emphasized the underpass’s economic and social impact. Fresno City Council Vice President Miguel Arias said the project restores a vital east‑west connection that had long been disrupted by rail traffic, improving access to local businesses and services.

“The completion of the Cesar Chavez Boulevard underpass restores a vital connection between Southwest Fresno and downtown along one of Fresno’s major arterial roads,” Arias said. “This project underscores the Authority’s continued progress and transformative investment in our community.”

Local business groups welcomed the change as well, particularly in Chinatown, where trains previously blocked access for extended periods. Jan Minami, director of the Chinatown Fresno Foundation, said the underpass has already made a noticeable difference.

“Trains no longer block access,” Minami said. “The Chinatown Foundation and surrounding business owners love to see progress.”

Additional Benefits of the Newly Completed Underpass

Beyond local connectivity, the project contributes to broader safety and economic goals.

According to the High‑Speed Rail Authority, grade‑separation projects across Fresno County are projected to reduce accidents, injuries, and fatalities over time, delivering an estimated $3.3 billion in public benefits over 30 years.

The Cesar Chavez Boulevard underpass is the first high‑speed rail structure completed in 2026 and brings the total number of completed structures in California’s Central Valley to 59.

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