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.


Crews are working on the recently poured deck for the Clinton Avenue bridge over State Route 99 (SR 99). The new Clinton Avenue approaches to the bridge are already being paved in anticipation of tying the roadway in with the new structure. On the east side of the construction area, girders are in place for the section of the bridge that crosses over high-speed rail and freight lines. SR 99 is also being shifted about 100 feet to the west between Clinton and Ashlan Avenues.


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

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