Railways:
total:
240,000 km mainline routes (nongovernment owned)
standard gauge:
240,000 km 1.435-m gauge (1989)
Highways:
total:
6.42 million km
paved:
3,903,360 km (including 88,400 km of expressways)
unpaved:
2,516,640 km (1996 est.)
Waterways:
41,009 km of navigable inland channels, exclusive of the Great Lakes
Pipelines:
petroleum products 276,000 km; natural gas 331,000 km (1991)
Ports and harbors:
Anchorage, Baltimore, Boston, Charleston, Chicago, Duluth, Hampton Roads,
Honolulu, Houston, Jacksonville, Los Angeles, New Orleans, New York,
Philadelphia, Port Canaveral, Portland (Oregon), Prudhoe Bay, San
Francisco, Savannah, Seattle, Tampa, Toledo
Merchant marine:
total:
385 ships (1,000 GRT or over) totaling 11,123,848 GRT/15,255,996 DWT
ships by type:
barge carrier 10, bulk 61, cargo 28, chemical tanker 13, combination bulk
2, container 83, liquefied gas tanker 9, multifunctional large-load carrier
3, oil tanker 114, passenger 7, passenger-cargo 1, roll-on/roll-off cargo
43, short-sea passenger 3, specialized tanker 1, vehicle carrier 7 (1998
est.)
Airports:
14,459 (1998 est.)
Airportswith paved runways:
total:
5,167
over 3,047 m:
180
2,438 to 3,047 m:
219
1,524 to 2,437 m:
1,294
914 to 1,523 m:
2,447
under 914 m:
1,027 (1998 est.)
Airportswith unpaved runways:
total:
9,292
over 3,047 m:
1
2,438 to 3,047 m:
6
1,524 to 2,437 m:
156
914 to 1,523 m:
1,647
under 914 m:
7,482 (1998 est.)
Heliports:
122 (1998 est.)