Caltrans Information

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California Highway Patrol

Alturas (170)
905 West C St., Alturas
(530) 233-2919
http://www.chp.ca.gov/

Road Conditions
 (by phone)

• Weather Bureau:
  (530) 221-5613
• Cal Trans: (800) 427-7623
• Oregon Roads:
  (503) 588-2941
• Nevada Roads:
  (877) 687-6237

Snow Chain Requirements

• R1 (Modified) - Single Axle Trucks
• R1 -  All Trucks & Vehicles without snow tires.
• R2 - All Single Axle Trucks & Vehicles with snow tires.
• R3 - All Trucks & Vehicles & 4x4s with snow tires.