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A technique for preliminary appraisal of potential and observed scour as applied to state-maintained highway bridges in Maryland

E.J. Doheny·B.M. Helinsky·R.A. McGregor
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Abstract

This report describes a technique that can be used to assess potential and observed scour at highway bridges over waterways. Channel-stability assessments were conducted at 876 State highway, U.S. highway, and Interstate highway bridges over waterways in the State of Maryland. Conventional data-collection techniques were used in the field to collect bridge and stream-channel data for each bridge. A potential-scour index and an observed- scour index were developed by assigning numerical-index values to specific diagnostic characteristics of the bridge and stream channel. Potential-scour ratings and observed-scour ratings for assessed bridges were obtained by summing numerical-index values that were assigned to each diagnotic characteristic in the potential-scour index and the observed-scour index.

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E.J. Doheny, B.M. Helinsky, R.A. McGregor. 1996. A technique for preliminary appraisal of potential and observed scour as applied to state-maintained highway bridges in Maryland. https://doi.org/10.3133/ofr95135

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