Snow Clearing Equipment Near Donner Pass and I-80

snow clearing equipment snowplow snow equipment road maintenance donner pass snowy roads mountain roads highway maintenance road equipment road tools department of transportation sierra nevadas i80 interstate 80 snowy highway snowfall dense snowfall dense snow inclement weather mountains winter long winter northern sierras lake tahoe region truckee california truckee snowblower snow blower icy roads snowpack large snowblower pines evergreens forest tahoe national forest road clearing winter maintenance snowy conditions winter service ice management preparedness highway handling emergency response equipment operations weather management incident response highway care california department of transportation truck route