1-2 Transportation Facilities
number
| Mode | 2004 | 2014 |
|---|---|---|
| Air | ||
| Certificated airportsa | 599 | 537 |
| General aviation airports | 19,221 | 18,762 |
| Highway | ||
| Bridges | 594,100 | 610,749 |
| Pipeline | ||
| LNG facilities | U | 125 |
| Rail | ||
| Amtrak stations | 529 | 518 |
| Transit rail | ||
| Commuter rail stations | 1,163 | 1,245 |
| Heavy rail stations | 1,023 | 1,130 |
| Light rail stationsb | 723 | 969 |
| Water | ||
| Portsc | 191 | 183 |
| Cargo handling docksd | * | 8,229 |
| Lock chambers | 257 | 239 |
*2004 cargo handling docks number is omitted because it is not comparable to 2014 number due to a change in data collection methodology.
aCertificated airports serve air carrier operations with aircrafts seating more than nine passengers. bLight Rail was revised beginning in 2011 and includes light rail, street car rail, and hybrid rail. cPorts handling over 250,000 short tons. dData for 2004 and 2014 are not comparable due to changes in data coverage.
Key: LNG = liquified natural gas; U = Data are unavailable.
Sources: Air, Highway, Rail–As cited in U.S. Department of Transportation, Bureau of Transportation Statistics, National Transportation Statistics, tables 1-3, 1-7, and 1-28, available at www.bts.gov as of October 2016. Pipeline–U.S. Department of Transportation, Pipeline and Hazardous Materials Administration, available at phmsa.dot.gov/pipeline/library/data-stats as of October 2016. Transit–U.S. Department of Transportation, National Transit Database, available at www.ntdprogram.gov as of October 2016. Water–U.S. Army Corps of Engineers, Navigation Data Center, Transportation Facts and Information, available at www.navigationdatacenter.us as of October 2016.