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Research and Technology Bureau
Research News

Investing in the Future, Making a Difference Today

The Iowa Department of Transportation (DOT) relies heavily on State Planning and Research (SP&R) funding to improve the state's transportation system.
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NewNEW! IHRB TR-574

Design, Construction, and Field Testing of an Ultra-High Performance Concrete Pi-Girder Bridge
The first bridge constructed in the U.S. composed of prestressed UHPC bridge girders incorporating a unique cross-section resembling the Greek letter π, effective for superstructures where accelerated construction schedules are needed.
TR-574 Tech Brief

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Iowa Highway Research Board
Annual Report

Annual Report of the Iowa Highway Research Board - Research and Development Activities for FY 2012

The report, prepared by the Iowa Department of Transportation's Research and Technology Bureau staff for the state legislature, presents details on Iowa Highway Research Board funding, all projects initiated and completed during FY 2012, and individual project information on developments, conclusions and implementation strategies.