Winter Pass Closure Notice
Monitor Pass (State Route 89)

Alpine County- The California Department of Transportation (Caltrans) has issued the official winter seasonal closure of State Route 89 (Monitor Pass) at the State Route 4/89 Junction, as of 11:00 a.m. on Friday, December 26, 2025.

The recent storms, and accumulation of snow, have made the seasonal closure necessary for the safety of motorists and Caltrans maintenance crews. Weather conditions on the pass and subsequent road conditions are among the determining factors for issuing the seasonal closure.

Once Monitor Pass has been closed for winter, the highway will not be reopened until conditions warrant later this spring. Each year, Caltrans crews work diligently to clear debris, remove snow, and make repairs so the highway can reopen safely to motorists.

For the latest road condition information, tune your radio to the Caltrans Highway Advisory Radio (HAR) at 530 AM, 1610 AM or 1670 AM, or call the Caltrans Road Condition Hotline at 1-800-427-ROAD (7623). Changeable Message Signs (CMS) will display information regarding the pass closures for motorists.

For the latest road condition information, tune your radio to the Caltrans Highway Advisory Radio (HAR) at 530 AM, 1610 AM or 1670 AM or call the Caltrans Road Condition Hotline at 1-800-427-ROAD (7623). Changeable Message Signs with flashing beacons will have information regarding the pass closures.

Caltrans urges motorists not to pass snow removal equipment on the highway, use caution, and watch for icy road surfaces in the overnight and early morning hours. For helpful information on winter driving conditions visit dot.ca.gov/travel/winter-driving-tips.

Caltrans also reminds motorists to #KnowBeforeYouGo by checking QuickMaps on your mobile device or visit quickmap.dot.ca.gov for real-time highway conditions.

Motorists should expect 5-to-10-minute delays and use alternate routes whenever possible. All work is scheduled to occur as listed but is subject to change due to traffic incidents, weather, availability of equipment/materials, and construction-related issues.

For the safety of workers and other motorists, please Be Work Zone Alert. For the latest highway conditions, visit quickmap.dot.ca.gov