U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590

Skip to content U.S. Department of Transportation/Federal Highway AdministrationU.S. Department of Transportation/Federal Highway Administration

Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations



Research and Development (R&D) Project Sites

Project Information
Project ID:   FHWA-PROJ-08-0008
Project Name:   Development of an Ultra-High Performance Concrete Bridge Superstructure System
Project Status:   Completed
Start Date:  July 1, 2008
End Date:  December 31, 2009
Contact Information
Last Name:  Graybeal
First Name:  Benjamin A (Ben)
Telephone:  202-493-3122
E-mail:  benjamin.graybeal@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Bridge and Foundation Engineering Team [HRDI-40]
Program:   Ultra-High Performance Concrete with Ductility
Laboratory:   Structures Laboratory
Project detail
Roadmap/Focus area(s):   Infrastructure Research and Technology Strategic Plan and Roadmap
Project Description:   This project developed and refined an optimized component that combined the bridge superstructure and deck into a single modular element. This prestressed Ultra-High Performance Concrete (UHPC) component meets all load requirements in the American Association of State Highway and Transportation Officials Load and Resistance Factor Design Bridge Design Specification. It facilitates accelerated construction by allowing for the construction of a bridge that is almost entirely prefabricated.
Goals:   The key project objective is to develop a modular bridge girder component that engages the unique strength and durability properties of Ultra-High Performance Concrete (UHPC) to address pressing needs in the highway structure arena.
Product Type:   Research report
Test Methodology:   Use computational modeling to develop an optimized component; fabricate full-scale components; complete full-scale structural testing of the component to verify anticipated behaviors.
Other Information:   A prior study developed a prototype modular component. Further information can be found at: http://www.fhwa.dot.gov/publications/research/infrastructure/structures/09068/index.cfm
Deliverables: 1. Name: Structural Behavior of a 2nd Generation UHPC Pi-Girder
Product Type(s): Techbrief
Description: The product is a summary covering the results of the research study.
Publication URL(s):
2. Name: Structural Behavior of a 2nd Generation Ultra-High Performance Concrete Pi-Girder
Product Type(s): Research report
Description: The product is a full report documenting the results of the research project.
FHWA Topics:   Roads and Bridges--Design
TRT Terms:   Concrete Structures
Prefabricated Bridges
FHWA Disciplines:   Construction and Project Management
Subject Areas:   Bridges and other structures


Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000
Turner-Fairbank Highway Research Center | 6300 Georgetown Pike | McLean, VA | 22101