Transportation Facilities: 2007, 2017

number
Mode 2007 2017
Air
Certificated airportsa
565
526
General aviation airports
19,776
19,129
Highway
Bridges
599,765
615,002
Pipeline
LNG facilities
U
151
Rail
Amtrak stations
508
527
Transit rail
Commuter rail stations
1,182
1,262
Heavy rail stations
1,042
1,054
Light rail stationsb
773
885
Water
Portsc
192
186
Cargo handling docksd
*
8,239
Lock chambers
257
239

Notes:

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 2007 and 2017 are not comparable due to changes in data coverage. 

LNG = liquified natural gas; U = Data are unavailable. *2007 cargo handling docks number is omitted because it is not comparable to 2017 number due to a change in data collection methodology.

Sources:

Air, Highway, Rail—As cited in U.S. Department of Transportation, Bureau of Transportation Statistics, National Transportation Statistics, tables 1-3 and 1-7, available at https://www.bts.gov/. Pipeline—U.S. Department of Transportation, Pipeline and Hazardous Materials Administration, available at https://www.phmsa.dot.gov/. Transit—U.S. Department of Transportation, National Transit Database, available at https://www.transit.dot.gov/ntd/. Water—U.S. Army Corps of Engineers, Navigation Data Center, Transportation Facts and Information, available at http://www.navigationdatacenter.us/.

Last Updated: May 2019