NEWS

Diagnostic test data affects some bridge postings
The BEC recently tested several bridges for the Iowa DOT to determine if deriving load ratings through diagnostic tests would affect the number of embargoed bridges or posted limits, compared to deriving load ratings via conventional calculations. The results are available in a new technical summary. Click on the table, page 2, to see individual bridge test results.

First in the nation bridge with UHPC Pi girder
Buchanan County, Iowa, is the site of the first bridge in the U.S. built with Pi-shaped girders made of ultra high performance concrete. The BEC staff is assessing the behavior of the individual elements during construction as well as their long-term performance, and the long-term performance and overall behavior of the completed bridge. This project directly addresses the FHWA's Innovative Bridge Research and Construction program's goal of demonstrating and documenting the effectiveness of innovative materials and construction techniques for for new bridge structures.

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Worker maneuvers a pi-shaped girder into place on a bridge

First bridge in the U.S. to use ultra high performance concrete Pi girders, under construction in Buchanan County, Iowa, October 2008

MISSION

Our mission is to conduct research on bridge technologies to help bridge designers/owners, particularly the Iowa Department of Transportation Office of Bridges and Structures, design, build, and maintain long-lasting bridges.

CONTACT

2711 S. Loop Drive, Suite 4700
Ames, Iowa 50010-8664
Phone: 515-294-9501
Fax: 515-294-0467

The Bridge Engineering Center is an Iowa State University Center administered by the Institute for Transportation.