The reason they have to enforce chain control over Donner pass is because most Californians live in warmer climates and as such do not have snow tires. Very dif

The reason they have to enforce chain control over Donner pass is because most Californians live in warmer climates and as such do not have snow tires. Very different to an average Colorado resident who swaps to snow tires during winter. What's the other option ? Just leave it open fully knowing that Bay Area drivers will be driving RWD, summer tires in deep snow ?