- 업종: Government; Transportation
- Number of terms: 1862
- Number of blossaries: 0
- Company Profile:
Iowa Department of Transportation (DOT) is the state agency responsible for the organization, construction, and maintenance of the of Iowa's highway system. Located in Ames, Iowa DOT is also responsible for licensing drivers and programming and planning for aviation, rail, and public transit.
A bridge formed when one roadway crosses over another at a higher level; an overpass.
Industry:Construction
A pipe or channel, open or enclosed, that carries water. May also be used as part of a canal to carry boats. Sometimes carried by a bridge.
Industry:Construction
A bridge in which the supporting members are all beneath the roadway.
Industry:Construction
A type of girder bridge in which the piers and deck girder are fastened to form a single unit. Unlike typical girder bridges that are constructed so that the deck rests on bearings atop the piers, a rigid frame bridge acts as a unit. Pier design may vary.
Industry:Construction
The roughly triangular area above an arch and below a horizontal bridge deck. A closed spandrell encloses fill material. An open spandrel carries its load using interior walls or columns.
Industry:Construction
The mission of FHWA is to administer the Federal-Aid Highway Program to create the best transportation system in the world for the American people through proactive leadership, innovation, and excellence in service. The FHWA is a part of the United States Department of Transportation and is headquartered in Washington, D. C. , with field offices located across the United States.
Industry:Construction
The surface that receives the vertical weight at the bottom of an arch.
Industry:Construction
A raised curb along the outside edge of traffic lanes to safeguard constructions outside the roadway limit from collision with vehicles.
Industry:Construction
Timber freespan bridges can freespan up to 26 feet. A timber freespan is generally used to span a creek or other relatively small crossings.
Industry:Construction
