US-40E traction law code 15

Eastbound and westbound open. Between Kemry Lane and Howard Colburn (3 to 23 miles east of the Steamboat Springs area) from Mile Point 139 to Mile Point 159. Passenger vehicles that are all-wheel drive (AWD) or four-wheel drive (4WD) must have winter (Mountain Snowflake icon) or mud and snow (M+S or M/S) or manufacturer rated all-weather tires with adequate tread depth of at least 3/16 of an inch. Two-wheel drive (2WD) vehicles are required to have chains or an approved traction device.