United States: Transportation
United States of America

Railways:

total:  225,750 km mainline routes standard gauge:  225,750 km 1.435-m gauge (1999)

Highways:

total:  6,370,031 km paved:  5,733,028 km (including 74,091 km of expressways) unpaved:  637,003 km (1997)

Waterways:

41,009 km note:  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:  376 ships (1,000 GRT or over) totaling 10,814,622 GRT/14,416,517 DWT ships by type:  barge carrier 9, bulk 68, cargo 29, chemical tanker 13, combination bulk 3, container 80, liquefied gas 1, multi-functional large-load carrier 3, passenger 9, passenger/cargo 1, petroleum tanker 98, roll on/roll off 49, short-sea passenger 3, specialized tanker 1, vehicle carrier 9 (2000 est.)

Airports:

14,720 (2000 est.)

Airports - with paved runways:

total:  5,174 over 3,047 m:  182 2,438 to 3,047 m:  220 1,524 to 2,437 m:  1,331 914 to 1,523 m:  2,440 under 914 m:  1,001 (2000 est.)

Airports - with unpaved runways:

total:  9,546 over 3,047 m:  3 2,438 to 3,047 m:  6 1,524 to 2,437 m:  164 914 to 1,523 m:  1,675 under 914 m:  7,698 (2000 est.)

Heliports:

131 (2000 est.)

Source: CIA World Factbook 2001
(In general, information available as of 1 January 2001 was used in the preparation of this edition.)

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