United States Department of Transportation
i
Substructure Condition Evaluation of the Willow Valley Creek Bridge Using Geophysical Logging Methods
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2023-10-01
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[PDF-21.01 MB]
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Edition:Final Report
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Abstract:A project to widen the Willow Valley Creek Bridge carrying Lake Mary Road in Arizona planned to add 5-ft (1.5-m) shoulders along each side. The rehabilitation plan also emphasized reusing the existing stone masonry piers and abutments and providing a steel girder superstructure that retains the same “look” as the existing bridge and blends well within the forest environment of the project site. The research presented in this report—carried out in partnership with the Federal Highway Administration’s Central Federal Lands Highway Division— examines geophysical logging methods used for evaluating the structural integrity and durability of existing substructures, including the foundations. The researchers performed an indepth geophysical wireline logging investigation and seismic imaging through coreholes drilled from the bridge deck into the substructures and into the bedrock. The field testing results present an indepth condition evaluation of the stone masonry wall foundations around the coreholes.
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