Interstate Highways in Alaska

The Interstate Highways in Alaska are all owned and maintained by the U.S. state of Alaska. The Alaska Department of Transportation & Public Facilities (DOT&PF) is responsible for the maintenance and operations of the Interstate Highways. The Interstate Highway System in Alaska comprises four highways that cover 1,082.22 miles (1,741.66 km). The longest of these is A-1, at 408.23 miles (656.98 km) long, while the shortest route is A-3, at 148.12 miles (238.38 km) long.

Interstate Highways in Alaska

The Interstate Highways in Alaska are all owned and maintained by the U.S. state of Alaska. The Alaska Department of Transportation & Public Facilities (DOT&PF) is responsible for the maintenance and operations of the Interstate Highways. The Interstate Highway System in Alaska comprises four highways that cover 1,082.22 miles (1,741.66 km). The longest of these is A-1, at 408.23 miles (656.98 km) long, while the shortest route is A-3, at 148.12 miles (238.38 km) long.