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Case Studies of Bridge Scour in Western New York

by Kenneth R. Avery, Bergmann Associates, Rochester, United States,
Mark A. Hixson, Bergmann Associates, Rochester, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

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 | Highway bridges | Site investigation | Federal government | Case studies | Concrete bridges | Structural analysis | New York | United States

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