The California Highway Patrol has activated chain controls on Interstate 80 over Donner Summit due to winter weather conditions.
According to CHP, westbound I-80 is under R-2 chain restrictions from Truckee to Rainbow, while eastbound I-80 is under R-2 restrictions from Kingvale to Truckee.
Under R-2 conditions, chains are required for most vehicles, with the exception of those equipped with four-wheel or all-wheel drive and snow tires…