Bridges are an integral part of the highway system. They allow drivers to cross over valleys, streams and rivers, railroad tracks, other highways, or local roads and streets. A bridge is a structure that spans 20 feet or more in length above the feature it crosses.
There is a wide variety of bridge designs, from plain concrete boxes under roads that cross small streams to lengthy structures that are made with piers, steel girders, concrete decks, and guard rails. The type of bridge design used depends on a number of factors, including the length needed, the volume of traffic, the height that is necessary beneath the bridge, and the amount of funding available to build it.
Kansas Bridges by the Numbers
- $3.35 billion: the amount estimated to fix all deficient bridges in the state
- $750 million: the amount that will have been spent on state bridges during the Comprehensive Transportation Program
- 18.6%: the total percentage of bridges in the state that are either structurally deficient or functionally obsolete
- 5,047: the number of bridges on the state highway system as of July 2008 (Kansas, U.S. and Interstate routes)
- 59: the number of the bridges on the state highway system that are classified as structurally deficient (1.2%) in Nobember 2008
- 442: the numbers of bridges on the state highway system that were classified as functionally obsolete (8.9%) in November 2008
- 14: the percent of bridges on the state highway system that were classified as structurally deficient or functionally obsolete in 2000 when the Comprehensive Transportation Program started.
- 25,464: the number of bridges in the state (state, county and city routes)
- 4th and 15th: where Kansas ranks nationwide in the total number of bridges and in the amount of bridge square footage
The Nation’s Bridges by the Numbers
- $140 billion: the amount needed to fix all deficient bridges nationwide
- 600,000: the approximate number of bridges nationwide
- 25: the percentage of bridges nationwide that are classified as structurally deficient or functionally obsolete
Last updated : November 14, 2008