Highway 140 in the Merced River Canyon in Mariposa County
Caltrans photo.

Storm-Related Highway Closures in District 10 
Updated Information as of 5:45 P.M. on Wednesday, March 22, 2023 

March 22, 2023 - STOCKTON – The California Department of Transportation (Caltrans) is performing the following highway closures due to storm-related activity. Closure updates and locations are below as of 5:45 p.m. on Wednesday, March 22, 2023:

Alpine County:

• Full highway closure of SR-89 at Laramie Street past the Carson River Resort in Markleeville for slide removal. There is no ETO (Estimated Time Opening.)

Mariposa County:

• Full highway closure of SR-140 from Foresta Road to El Portal Road for slide removal. There is no ETO. Motorists are being detoured at Foresta Road and El Portal Road.

Merced County:

• Full highway closure of SR-59 from Dickenson Road/Mission Avenue to McNamara Road, south of Merced due to flooding near Mariposa Creek. There is no ETO.

Road closures due to snow, flooding and rockslides in some areas are still possible. If you must travel, be prepared for winter driving conditions. In the mountains, always have chains, winterize your vehicle, and pack an emergency kit. Stay back and give snowplows and first responders room to work safely.

In wet weather, reduce speed and follow at a safe distance, inspect wipers, and replace if needed. Don’t use cruise control, check headlights, inflate tires to the correct pressures, check tread, and heed flood warnings and road closures.

More tips and information are available here: dot.ca.gov/travel.

Check Caltrans for road conditions: quickmap.dot.ca.gov or 1-800-427-7623.

For the safety of workers and other motorists, please Be Work Zone Alert.

For the latest road information, visit quickmap.dot.ca.gov & dot.ca.gov.

For weather information, visit weather.gov/hnx.