Recent seismic activity forces emergency pavement repairs on Highway 36 near Fredonyer Summit

The California Department of Transportation and Darren Taylor Construction, Inc. are conducting emergency pavement repairs on Highway 36 near Fredonyer Summit in Lassen County following recent seismic activity.

A Caltrans map locating Fredonyer Summit.

The project will grind and smooth pavement in the area over various fault lines. Following fault activity, permanent grinding, paving, striping and shoulder work will be conducted in the area.

Evidence of seismic activity along Highway 36.

Upcoming, motorists will encounter 24/7 lane reductions (one lane in each direction) in the area, with added stop signs. Motorists are required to slow to a stop and then travel slowly in the uneven pavement area. A 25 miles-per-hour speed reduction will be in place in the project area. Travelers should also plan for intermittent one-way traffic control with up to 15-minute delays, 24/7 when in place. Motorists are urged to slow down and drive carefully in and around construction areas, follow speed limit reductions in place and allot extra time for delays.

More evidence of seismic activity along Highway 36.

Construction projects are subject to changes without prior notice. Caltrans and its contractors do our best to keep the public informed.

To stay up to date on highway projects, follow Caltrans on Facebook and X (formerly Twitter). Project information can also be found on the District 2 webpage.

The public can also call (530) 225-3426 during working hours or send an email to Updated highway conditions for California can be found on QuickMap and on One-Stop-Shop for the Western U.S. For more information about transportation and other infrastructure projects funded with state and federal investments, visit and