Case Studies of Bridge Scour in Western New Yorkby Kenneth R. Avery, Bergmann Associates, Rochester, United States,
Mark A. Hixson, Bergmann Associates, Rochester, United States,
Abstract: As part of the New York State Thruway Authority's bridge hydrologic/hydraulic evaluation program, 63 structures over 42 stream crossings in western New York were assessed for scour potential using the Federal Highway Administration (FHWA) HEC-18 guidelines (3). This paper illustrates the approaches employed to analyze scour and design scour countermeasures for four representative bridge structures on this 322 km section of Interstate 90. The paper also reviews site specific investigation methods, analyses, and findings. Recommendations of viable analysis and design methods and additional research needs are presented.
Subject Headings: Scour | Case studies | Bridges | Bridge design | Federal government | Highway bridges | Bridge tests | Structural analysis | Rivers and streams | Hydrology | North America | United States | New York
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