Office of Operations Freight Management and Operations

Table 3-1. Miles and Kilometers of Infrastructure by Mode (Historical)

Table in Excel format

empty Cell 1980 1990 2000 2001 2002 2003 Percent change,
1980-2003
Public roads, route miles 3,859,837 3,866,926 3,951,101 3,963,264 3,981,670 3,989,847 3.4
National Highway System (NHS) N N 161,189 161,421 (R) 161,539 161,801 N
Interstates 41,120 45,074 46,673 46,714 46,748 46,769 13.7
Other NHS N N 114,516 114,707 114,791 115,032 N
Freight Intermodal connectors1 N N N N 1,791 1,853 N
Other N N 3,789,912 3,801,843 3,820,131 3,858,047 N
Strategic Highway Corridor Network (STRAHNET) N N 62,066 62,784 62,792 62,576 N
Interstate N N 46,675 46,717 46,747 46,773 N
Non-Interstate N N 15,389 16,067 16,045 15,803 N
Railroad 183,0772 175,909 170,512 142,633 141,391 140,939 -23.0
Class I NA 133,189 120,597 97,631 99,943 98,944 NA
Regional NA 18,375 20,978 17,439 15,048 15,648 NA
Local NA 24,337 28,937 27,563 26,400 26,347 NA
Inland waterways empty Cell empty Cell empty Cell empty Cell empty Cell empty Cell empty Cell
Navigable channels 11,000 11,000 11,000 11,000 11,000 11,000 0.0
Great Lakes-St. Lawrence Seaway 2,342 2,342 2,342 2,342 2,342 2,342 0.0
Pipelines empty Cell empty Cell empty Cell empty Cell empty Cell empty Cell empty Cell
Oil 218,393 208,752 176,996 158,489 161,189 160,868 -26.3
Gas 1,051,774 (R) 1,189,200 (R) 1,369,300 1,373,500 (R) 1,411,400 1,424,200 35.4

Key: N = not applicable; NA = not available; R = revised.

1Excludes intermodal connectors serving intercity bus, Amtrak, and public transit facilities.
2Excludes Class III railroads.

Sources: Public roads: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics, (Washington, DC: Annual issues) table HM-16.
Intermodal connectors: U.S. Department of Transportation, Federal Highway Administration, Office of Planning, National Highway System Intermodal Connectors, available at https://www.fhwa.dot.gov/hep10/nhs/intermodalconnectors/index.html as of July 5, 2005.
Rail: Association of American Railroads, Railroad Facts (Washington, DC: various issues).
Navigable channels: U.S. Army Corps of Engineers.
Great Lakes-St. Lawrence Seaway: Great Lakes-St. Lawrence Seaway System, "Seaway Facts," available at http://www.greatlakes-seaway.com/en/aboutus/seawayfacts.html as of July 6, 2005.
Oil pipelines: 1980-2000: Eno Transportation Foundation, Transportation in America, 2002 (Washington, DC: 2002). 2003: U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety, Pipeline Statistics, Internet site http://ops.dot.gov/stats/lpo.htm as of July 5, 2005.
Gas pipelines: American Gas Association, Gas Facts (Arlington, VA: Annual issues).

You will need the Microsoft Excel Viewer to view the Excel files on this page.

Office of Operations