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SOURCE FOR DATA ON THIS PAGE: U.S. Department of Transportation, National Highway Traffic Safety Administration, 1998-2000 State Shoulder Belt Use Survey Results, Research Note, Washington, DC: May...
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California Year Total # of Bridges Structurally Deficient Functionally Obsolete Total of Both # % # % # % 1995 25,170 1,578 6 5,352 21 6,930 28 1996 25,344 1,561 6 5,329 21 6,890 27 1997 25,266 1,448 6 4,917...Excel | CSV | Table Version
California United StatesSOURCE: U.S. Department of Transportation, Federal Highway Administration, National Bridge Inventory: Deficient Bridges by State and Highway System,...
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(Miles)
Interstate Other Freeways and Expressways Other Principal Arterial Urban Minor Arterial Urban Collector Total 1,095 1,320 5,886 10,267 9,671 Very good 32 13 23 48 39...Excel | CSV | Table Version
NOTE FOR DATA ON THIS PAGE: Road condition is based on measured pavement roughness using the International Roughness Index (IRI). IRI is a measure of surface condition. A...
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(Miles)
Interstate Other Principal Arterial Minor Arterial Major Collector Total 1,352 3,694 6,970 12,692 Very good 45 33 34 95 Good 539 1,021 1,202 2,882 Fair 347 2,472 4,...Excel | CSV | Table Version
NOTE FOR DATA ON THIS PAGE: Road condition is based on measured pavement roughness using the International Roughness Index (IRI). IRI is a measure of surface condition. A...
All public roads: 168,076 miles Interstate: 2,453 miles Road bridges: 23,672 Class I railroad trackage: 5,861 miles Inland waterways: 286 miles Public use airports: 257 (42 certificated for air carrier operations)1
Vehicles and...British thermal unit (Btu): The amount of energy required to raise the temperature of 1 pound of water 1 degree Fahrenheit (F) at or near 39.2 degrees F and 1 atmosphere of pressure.
Commuter rail: Urban passenger train service for short-distance travel between a central...
The U.S. Department of Transportations (USDOT) Bureau of Transportation Statistics (BTS) collects and compiles data on the volume of revenue passengers, freight, and mail traffic handled and reported by the nations large...