Transportation Facilities: 2006, 2016

number
Mode 2006 2016
Air
Certificated airportsa
604
531
General aviation airports
19,379
19,005
Highway
Bridges
597,339
614,386
Pipeline
LNG facilities
U
156
Rail
Amtrak stations
510
520
Transit rail
Commuter rail stations
1,169
1,261
Heavy rail stations
1,042
1,051
Light rail stationsb
764
871
Water
Portsc
190
181
Cargo handling docksd
*
8,227
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 2006 and 2016 are not comparable due to changes in data coverage.

LNG = liquified natural gas; U = Data are unavailable. *2006 cargo handling docks number is omitted because it is not comparable to 2016 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, 1-7, and 1-28, 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: July 2018