km 1.435-m gauge (1989)

Highways:
total: 6,284,488 km
paved: 5,574,341 km (in 1991, included 85,267 km of expressways)
unpaved: 710,147 km (1993 est.)

Waterways: 41,009 km of navigable inland channels, exclusive of
the Great Lakes

Pipelines: petroleum 276,000 km; natural gas 331,000 km (1991)

Ports: 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: 322 ships (1,000 GRT or over) totaling 10,716,000
GRT/15,259,000 DWT
ships by type: bulk 21, cargo 20, chemical tanker 17, intermodal
125, liquefied gas tanker 14, passenger-cargo 2, tanker 110, tanker
tug-barge 13
note: in addition, there are 190 government-owned vessels (1995 est.)

Airports:
total: 13,387
with paved runways over 3 047 m: 179
with paved runways 2 438 to 3 047 m: 201
with paved runways 1 524 to 2 437 m: 1,204
with paved runways 914 to 1 523 m: 2,361
with paved runways under 914 m: 7,720
with unpaved runways over 3 047 m: 1
with unpaved runways 2 438 to 3 047 m: 7
with unpaved runways 1 524 to 2 437 m: 151
with unpaved runways 914 to 1 523 m: 1,563 (1995 est.)

Heliports: 63 (1995 est.)

Communications
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Telephones: 182.558 million (1987 est.)

Telephone system:
domestic: large system of fiber-optic cable, microwave radio relay,
coaxial cable, and domestic satellites
international: 24 ocean cable systems in use; satellite earth
stations - 61 Intelsat (45 Atlantic Ocean and 16 Pacific Ocean)
(1990 est.), 5 Intersputnik (Atlantic Ocean region), and 4 Inmarsat
(Pacific and Atlantic Ocean regions)

Radio broadcast stations: AM 4,987, FM 4,932, shortwave 0

Radios: 540.5 million (1992 est.)

Television broadcast stations: 1,092 (in addition, there are about
9,000 cable TV systems)

Televisions: 215 million (1993 est.)

Defense
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Branches: Department of the Army, Department of the Navy (includes
Marine Corps), Department of the Air Force
note: the Coast Guard falls under the Department of Transportation,
but in wartime reports to the Department of the Navy

Manpower availability:
males age 15-49: 69,302,573
males fit for military service: NA
males reach military age (18) annually: 1,864,580 (1996 es