United States Department of Transportation
i
Accelerated Bridge Construction over Burnt River on Old US30 using Prefabricated Elements and Ultra High Performance Concrete
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2014-10-01
[PDF-7.78 MB]
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Edition:Final Report
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Abstract:As part of a national initiative sponsored by the Federal Highway Administration under the Highways for LIFE (HfL) program, the Oregon Department of Transportation (ODOT) was awarded a $300,000 grant to develop plans and specifications, and then construct Bridge 21252 over the Burnt River on Old US30 near Huntington, OR. The key innovation included the use of accelerated bridge construction (ABC) techniques by precasting the deck panels off-site in the controlled environment of a fabrication facility, transporting the panels to the project site, and installing the panels onto prefabricated concrete girders. The innovation also included the use of Ultra High Performance Concrete (UHPC) for the shear pockets and the deck joints which allowed for elimination of post-tensioning of the deck panels. This report documents the entire work effort, including the innovative ABC techniques employed by ODOT, with specific focus on the connection details including haunches, blockouts, and joints.
Removal and replacement of the Burnt River bridge was a great success, and ODOT was able to meet the HfL program requirement related to the project goals of safety, construction congestion, quality, and user satisfaction. ODOT and the construction contractor learned some valuable lessons in the process. Since this was the first project of its kind undertaken in Oregon, ODOT’s goal was to use it as learning and evaluation tool and chose a project site with low traffic volume and minimal anticipated impact to traffic. The overall costs for the construction of this bridge were higher than if the bridge had been constructed using traditional cast-in-place (CIP) techniques; however, if the bridge had been constructed in a location with shorter haul distances for the precast panels, higher traffic impacts, near urban areas with morning and evening peaks, and longer detours, it could potentially result in cost savings to ODOT and the traveling public.
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