Transportation System Extent

All public roads: 59,927 miles
Interstate: 1,000 miles
Road bridges: 3,694
Class I railroad trackage: 2,236 miles
Public use airports: 61 (9 certificated for air carrier operations)

Vehicles and Conveyances

Automobiles registered: 730,000
Light trucks registered: 691,000
Heavy trucks registered: 12,000
Buses registered: 3,400
Motorcycles registered: 29,000
Numbered boats: 70,000