California Department of Transportation
Caltrans > District 2 - Northeastern California > Chain Control > Modoc County

District 2 - Northeastern California Chain Control

Chain Control Legend Metering Traffic - Implemented when necessary to control the number of vehicles that feed into the snow area. This congestion control procedure gives Caltrans a better chance of keeping the freeway open. Vehicle Screening - All vehicles will be checked to make sure they have a full set of tire chains before being allowed to travel into areas where chains will be required. Truck Screening - All semi-trucks will be checked to make sure they have a full set of tire chains before being allowed to travel into areas where chains will be required. No Restrictions - Watch for snow on pavement. Chains are required on single-axle drive vehicles with trailers. (commonly referred to as R1 Modified) Chains are required on all commercial vehicles (trucks or buses). All other vehicles (cars, pick-ups, vans, etc.) must have either snow tread tires or chains on the drive axle. Chains are required on all vehicles except four-wheel drives with snow tread tires on all four wheels and provided that tire traction devices for at least one set of drive wheels are carried in or upon the vehicle. Chains required - ALL VEHICLES- no exceptions. Road Closed. Truck Hold - During major storms when traffic flow is heavy, Caltrans may hold tractor-trailer combinations at specific points below the snow line.
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NOTE: You can get location and direction of travel information for each chain control location by holding your cursor over a chain control symbol on the map. This feature is only available on the individual county chain control maps which can be accessed from the link to the left or clicking on the map below.

Modoc County Chain Control Map
Highway 139 South Bound 4 miles S of Newell Highway 299 West Bound Cedarville Highway 299 West Bound 4 miles W of Cedarville Highway 299 East Bound 9 miles W of Cedarville Highway 139 South Bound 20 miles N of Canby Highway 139 North Bound 5 miles N of Canby Highway 299 West Bound 4 miles W of Canby Highway 299 East Bound 7 miles W of Canby Highway 299 East Bound 10 miles W of Canby Highway 299 East Bound 5 miles E of Adin Highway 139 South Bound 13 miles S of Adin Highway 395 South Bound 5 miles S of Likely Highway 395 North Bound Madeline Highway 299 West Bound 1 mile W of Nubieber Highway 299 East Bound 5.8 miles W of Nubieber Highway 299 East Bound 8 miles W of Nubieber Highway 299 East Bound 4 miles E of McArthur Highway 299 West Bound 4 miles E of Jct SR 89 Highway 299 East Bound 2 miles E of Jct SR 89 Highway 299 East Bound 2 miles E of Jct SR 89 Highway 299 West Bound 4 miles E of Jct SR 89 Highway 299 East Bound 4 miles E of McArthur Highway 299 East Bound 8 miles W of Nubieber Highway 299 East Bound 5.8 miles W of Nubieber Highway 299 West Bound 1 mile W of Nubieber Highway 395 North Bound Madeline Highway 395 South Bound 5 miles S of Likely Highway 139 South Bound 13 miles S of Adin Highway 299 East Bound 5 miles E of Adin Highway 299 East Bound 10 miles W of Canby Highway 299 East Bound 7 miles W of Canby Highway 299 West Bound 4 miles W of Canby Highway 139 North Bound 5 miles N of Canby Highway 139 South Bound 20 miles N of Canby Highway 299 East Bound 9 miles W of Cedarville Highway 299 West Bound 4 miles W of Cedarville Highway 299 West Bound Cedarville Highway 139 South Bound 4 miles S of Newell