build HSR California

State Route 99 Realignment


This project will move State Route 99 approximately 100 feet to the west between Clinton Avenue and Ashlan Avenue to make way for the high-speed rail line, which will replace the northbound lanes. Additionally, the alignment project will improve traffic operations, reduce congestion and enhance traffic safety. The project scope includes:

  • Three through lanes with one auxiliary lane for each direction of travel.
  • A reconfigured interchange at Clinton Avenue, which includes replacing the highway crossing at Clinton Avenue. As at Tuolumne Street, the Clinton Avenue Bridge has to be raised to accommodate the future high speed rail trains that will cross underneath.
  • Closure of ramps at Princeton, Shields and Dakota Ave.

View project details and traffic impacts


From Clinton Avenue to Ashlan Avenue in central Fresno, a distance of about two miles.


The new Clinton Avenue overpass on State Route 99 (SR 99) in the City of Fresno opened to traffic in early November, and now crews are turning their attention to adding to new pavement for the highway mainline. The State Route 99 Realignment Project is shifting the highway about 100 feet to the west and raising the existing crossings over the adjacent freight tracks to accommodate the clearance requirements of the high-speed trains. The high-speed rail corridor will eventually replace the current northbound lanes. Work also continues for the Clinton Avenue on-ramps and off-ramps, which are scheduled to open in the coming months.


The SR 99 Realignment project began in December 2015 is expected to continue into the summer of 2018.

Photo Gallery

Video Gallery