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United States
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Railroads:
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Highways:
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Inland waterways:
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Pipelines:
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Ports:
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Merchant marine:
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Airports:
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total:
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240,000 km mainline routes (nongovernment owned)
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standard gauge:
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240,000 km 1.435-m gauge (1989)
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total:
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6,243,163 km
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paved:
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3,633,520 km (including 84,865 km of expressways)
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unpaved:
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2,609,643 km (1990)
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41,009 km of navigable inland channels, exclusive of the Great Lakes (est.)
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petroleum 276,000 km; natural gas 331,000 km (1991)
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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
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total:
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354 ships (1,000 GRT or over) totaling 11,462,000 GRT/16,477,000 DWT
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ships by type:
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bulk 22, cargo 28, chemical tanker 16, intermodal 130, liquefied gas tanker
13, passenger-cargo 2, tanker 130, tanker tug-barge 13
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note:
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in addition, there are 189 government-owned vessels
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total:
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15,032
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with paved runways over 3,047 m:
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181
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with paved runways 2,438 to 3,047 m:
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208
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with paved runways 1,524 to 2,437 m:
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1,242
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with paved runways 914 to 1,523 m:
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2,489
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with paved runways under 914 m:
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8,994
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with unpaved runways over 3,047 m:
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1
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with unpaved runways 2,438 to 3,047 m:
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7
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with unpaved runways 1,524 to 2,438 m:
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180
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with unpaved runways 914 to 1,523 m:
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1,730