Table 1-1: System Mileage Within the United States

Table 1-1: System Mileage Within the United States

(Statute miles)

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  1960 1965 1970 1975 1980 1985 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
Highwaya 3,545,693 3,689,666 3,730,082 3,838,146 3,859,837 3,863,912 3,866,926 3,883,920 3,901,081 3,905,211 3,906,595 3,912,226 R3,919,652 R3,945,872 R3,906,290 3,917,243 3,936,229
Class I railb,c 207,334 199,798 196,479 191,520 164,822 145,764 119,758 116,626 113,056 110,425 109,332 108,264 105,779 102,128 100,570 99,430 99,250
Amtrakc N N N N 24,000 24,000 24,000 25,000 25,000 25,000 25,000 24,000 25,000 25,000 22,000 23,000 23,000
Transitd                                  
Commuter railc N N N N N 3,574 4,132 4,038 4,013 4,090 4,090 4,160 3,682 4,417 5,172 5,191 U
Heavy rail N N N N N 1,293 1,351 1,369 1,403 1,452 1,455 1,458 1,478 1,527 1,527 1,540 U
Light rail N N N N N 384 483 551 558 537 562 568 638 659 676 802 U
Navigable channelse 25,000 25,000 26,000 26,000 26,000 26,000 26,000 26,000 26,000 26,000 26,000 26,000 26,000 26,000 26,000 26,000 26,000
Oil pipelinef 190,944 210,867 218,671 225,889 218,393 213,605 208,752 203,828 R196,545 R193,980 R190,350 R181,912 177,535 179,873 178,648 177,463 U
Gas pipelineg 630,950 767,520 913,267 979,263 1,051,774 1,118,875 1,206,894 1,225,358 1,253,924 1,251,095 1,257,971 1,262,152 1,276,315 1,251,199 R1,294,262 1,345,381 U

KEY: N = data do not exist; R = revised; U = data are not available.

a All public road and street mileage in the 50 states and the District of Columbia. For years prior to 1980, some miles of nonpublic roadways are included. No consistent data on private road mileage are available. Beginning in 1998, approximately 43,000 miles of Bureau of Land Management Roads are excluded.

b Data represent miles of road owned (aggregate length of road, excluding yard tracks, sidings, and parallel lines).

c Portions of Class I freight railroads, Amtrak, and commuter rail networks share common trackage. Amtrak data represent miles of track operated.

d Transit system mileage is measured in directional route-miles. A directional route-mile is the mileage in each direction over which public transportation vehicles travel while in revenue service. Directional route-miles are computed with regard to direction of service, but without regard to the number of traffic lanes or rail tracks existing in the right-of-way.

e The St. Lawrence Seaway is not included in this number because 3 of the 5 subsections are solely in Canadian waters, and the others are in international boundary waters. Of the 26,000 miles of navigable waterways, 10,867 miles are commercially significant shallow-draft inland waterways subject to fuel taxes.

f Includes trunk and gathering lines for crude-oil pipeline.

g Excludes service pipelines. Data not adjusted to common diameter equivalent. Mileage as of the end of each year. Includes field and gathering, transmission, and distribution mains. See table 1-8 for a more detailed breakout of oil and gas pipeline mileage.

SOURCES:

Highway:

1960-95: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: Annual issues), table HM-212.

1996-98,2000: Ibid., Highway Statistics (Washington, DC: Annual issues), table HM-20.

1999: Ibid., personal communication, May 2002.

Class I rail:

1960-2000: Association of American Railroads, Railroad Facts (Washington, DC: 2001), p. 45.

Amtrak:

1980: Amtrak, Corporate Planning and Development, personal communication (Washington, DC).

1985-2000: Amtrak, Corporate Planning and Development, Amtrak Annual Report, Statistical Appendix (Washington, DC: Annual issues).

Transit:

1985-99: U.S. Department of Transportation, Federal Transit Administration, National Transit Database (Washington, DC: Annual issues) table 20 and similar tables in earlier editions.

Navigable channels:

1960-96: U.S. Army Corps of Engineers, Ohio River Division, Huntington District, Ohio River Navigation System Report, 1996, Commerce on the Ohio River and its Tributaries (Fort Belvoir, VA: 1996), p. 2.

1997-99: Waterborne Commerce Statistics Center Databases, personal communication, Aug. 3, 2001.

Oil pipeline:

1960-99: Eno Transportation Foundation, Inc., Transportation in America, 2000 (Washington, DC: 2001), p. 44.

Gas pipeline:

1960-99: American Gas Association, Gas Facts (Arlington, VA: Annual issues), table 5-2 and similar tables in earlier editions.