U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
The authors would like to thank the Federal Highway Administration (FHWA) Highways for LIFE (HfL) program and the Iowa Department of Transportation (DOT) Iowa Highway Research Board (IHRB) for co-sponsoring and administrating this research project.
Special thanks are given to Ahmad Abu-Hawash, chief structural engineer with the Iowa DOT Office of Bridges and Structures for his coordination and valuable input. In addition, valuable feedback was received from a number of people, including Benjamin Graybeal with the FHWA Turner-Fairbank Highway Research Center, Dean Bierwagen, Kenneth Dunker, Ping Lu, and Michael Nop with the Iowa DOT, Mathew Royce with the New York State DOT, Bruce Johnson with the Oregon DOT, Claude Napier with the Virginia DOT, and Brian Moore with Wapello County, Iowa. The authors also want to acknowledge Kyle Nachuk and Vic Perry from Lafarge for sharing their expertise on UHPC, field casting of connections, and casting of waffle deck panels at the precast plant. Coreslab Structures (Omaha), Inc. produced the UHPC waffle decks for the laboratory tests and field implementation, and their efforts, including the contributions made by Todd Culp and John Heimann, are greatly appreciated.