- 産業: 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 bar bent in the shape of the letter "U" and fitted with threads and nuts at its ends.
Industry:Construction
According to the National Bridge Inspection Standards (NBIS), condition ratings are used to describe an existing bridge or culvert compared with its condition if it were new. The ratings are based on the materials, physical condition of the deck (riding surface), the superstructure (supports immediately beneath the driving surface), and the substructures (foundation and supporting posts and piers). General condition ratings range from 0 (failed condition) to 9 (excellent).
Industry:Construction
A low wall along the outside edge of a bridge deck used to protect vehicles and pedestrians.
Industry:Construction
A bridge with a superstructure designed to move horizontally either longitudinally or diagonally from "closed" to "open" position, the portion acting in cantilever being counterweighted by that supported on rollers; also known as traverse draw bridge.
Industry:Construction
Muro basso per tutta la lunghezza esterna del piano di un ponte a protezione dei veicoli e dei pedoni.
Industry:Construction
The measure of a structure's ability not to change shape when subjected to a load.
Industry:Construction
The Wichert truss, designed by E. M. Wichert of Pittsburg, PA, in 1930, is a cantilever spandrel-braced deck arch that is not a "true arch" bridge. The curved lower chord gives the bridge the form of an arch, but it does not rely on arch action to carry the load. The open diamond panel above each pier is the easily recognized mark of this truss type; without a vertical truss member in this hinged location.
Industry:Construction
