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TRB’s National Cooperative Highway Research Program (NCHRP) Report 761: Reference Guide for Applying Risk and Reliability-Based Approaches for Bridge Scour Prediction presents a reference guide designed to help identify and evaluate the uncertainties associated with bridge scour prediction including hydrologic, hydraulic, and model/equation uncertainty.

For complex foundation systems and channel conditions, the report includes a step-by-step procedure designed to provide scour factors for site-specific conditions.

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2013. Reference Guide for Applying Risk and Reliability-Based Approaches for Bridge Scour Prediction. Washington, DC: The National Academies Press. https://doi.org/10.17226/22477.

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Publication Info

164 pages |  8.5 x 11 |  DOI: https://doi.org/10.17226/22477
Chapters skim
Front Matter i-viii
Summary 1-3
Chapter 1 - Introduction and Applications 4-10
Chapter 2 - Uncertainty in Hydraulic Design 11-26
Chapter 3 - Evaluating Uncertainty Associated with Scour Prediction 27-40
Chapter 4 - Bridge Scour Equations and Data Screening 41-58
Chapter 5 - Probability-Based Scour Estimates 59-79
Chapter 6 - Calibration of Scour Factors for a Target Reliability 80-91
Chapter 7 - Illustrative Examples 92-111
Chapter 8 - Conclusions and Observations 112-115
References 116-118
Appendix A - Glossary 119-132
Appendix B - Summary of Scour Factors in Tabular and Graphical Form 133-165

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  • Risk-Based Methods Predict Bridge Scour
    TRB’s National Cooperative Highway Research Program (NCHRP) explores a report that helped close the gaps between hydraulic predictions and the field experience of structural engineers by using a risk-based methodology.
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