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Table 1-1M. System Mileage Within the United States (Statute kilometers)
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CSV
| 5,706,240 |
5,937,942 |
6,002,985 |
6,176,897 |
6,211,806 |
6,218,364 |
6,223,214 |
10,015,292 |
16,118,051 |
25,939,488 |
41,745,560 |
6,296,117 |
6,307,743 |
6,348,214 |
6,355,127 |
| 333,672 |
321,544 |
316,202 |
308,222 |
265,255 |
234,584 |
192,732 |
310,172 |
499,173 |
803,341 |
1,292,852 |
174,234 |
170,235 |
164,359 |
161,852 |
| N |
N |
N |
N |
38,624 |
38,624 |
38,624 |
62,160 |
100,036 |
160,993 |
259,093 |
38,624 |
40,234 |
40,234 |
35,406 |
| |
|
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|
|
|
|
|
|
|
|
|
|
|
|
| N |
N |
N |
N |
N |
5,752 |
6,649 |
10,701 |
17,221 |
27,714 |
44,602 |
6,695 |
5,926 |
7,108 |
8,324 |
| N |
N |
N |
N |
N |
2,081 |
2,174 |
3,498 |
5,630 |
9,060 |
14,580 |
2,346 |
2,379 |
2,457 |
2,457 |
| N |
N |
N |
N |
N |
618 |
777 |
1,250 |
2,012 |
3,237 |
5,210 |
913 |
1,027 |
1,061 |
1,088 |
| 40,234 |
40,234 |
41,843 |
41,843 |
41,843 |
41,843 |
41,843 |
67,340 |
108,373 |
174,409 |
280,684 |
41,843 |
41,843 |
R41,843 |
41,843 |
| 307,295 |
339,358 |
351,917 |
363,533 |
351,469 |
343,764 |
335,954 |
540,665 |
870,116 |
1,400,316 |
2,253,591 |
R356,631 |
R285,715 |
R289,478 |
287,506 |
| 1,015,416 |
1,235,204 |
1,469,761 |
1,575,971 |
1,692,666 |
1,800,655 |
1,942,308 |
3,125,841 |
5,030,554 |
8,095,891 |
13,029,074 |
2,031,237 |
2,054,030 |
R2,013,610 |
2,059,500 |
a All public road and street mileage. Prior to 1980, some miles of nonpublic roadways are included. No consistent data on private road mileage are available.Includes District of Columbia.
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 main. See table 1-8 for a more detailed breakout of oil and gas pipeline mileage.
KEY: N = data do not exist; R = revised.
NOTE:
Total highway mileage in this table will not match that in tables 1-4 and 1-5 because of a change in the way the U.S. Department of Transportation, Federal Highway Administration (FHWA) creates mileage-based tables derived from the Highway Performance Monitoring System, beginning with the 1997 issue of FHWA's Highway Statistics.
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: Ibid., Highway Statistics (Washington, DC: Annual issues), table HM-12.
Class I rail:
1960-98: Association of American Railroads, Railroad Facts (Washington, DC: 1998), p. 44.
Amtrak:
1980: Amtrak, Corporate Planning and Development, personal communication (Washington, DC).
1985-98: Amtrak, Corporate Planning and Development, Statistical Appendix to Amtrak Annual Report (Washington, DC: Annual issues).
Transit:
U.S. Department of Transportation, Federal Transit Administration, National Transit Database (Washington, DC: Annual issues), table 18 (1996-1997) and table 19 (for 1998) 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.
1997-1998: Waterborne Commerce Statistics Center Databases, personal communication, June 2000.
Oil pipeline:
1960-98: Eno Transportation Foundation, Inc., Transportation in America, 1998 (Washington, DC: 1999), p. 64.
Gas pipeline:
1960-98: American Gas Association, Gas Facts (Arlington, VA : Annual issues), table 5-2 and similar tables in earlier editions.
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