Reference Guide for Applying Risk and Reliability-Based Approaches for Bridge Scour Prediction

Summary

Subjects addressed:

Inventory and Condition Assessment, Maintenance and Preservation

Topics addressed:

Analytical Tools and Models

Asset types addressed:

Bridge

Detail

Title: Reference Guide for Applying Risk and Reliability-Based Approaches for Bridge Scour Prediction
Resource type: Research Report
Year published: 2013
Publisher: Transportation Research Board
URL: http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_761.pdf
Abstract:

This report presents a reference guide to identify and evaluate the uncertainties associated with bridge scour prediction including hydrologic, hydraulic, and model/equation uncertainty. Tables of probability values to estimate scour depth with a conditional probability of exceedance when a bridge meets certain criteria for hydrologic uncertainty, bridge size, and pier size are included in the reference guide. For complex foundation systems and channel conditions, a step-by-step procedure is presented to provide scour factors for site-specific conditions. The reference guide also includes a set of detailed illustrative examples to demonstrate the full range of applicability of the procedures. The report will be of immediate interest to hydraulic and bridge engineers.

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