Transportation System Extent

All public roads: 69,567 miles
Interstate: 1,191 miles
Road bridges: 4,979
Class I railroad trackage: 2,277 miles
Public use airports: 118 (8 certificated for air carrier operations)

Vehicles and Conveyances

Automobiles registered: 467,000
Light trucks registered: 476,000
Heavy trucks registered: 16,000
Buses registered: 2,800
Motorcycles registered: 27,000
Numbered boats: 51,000