TS015: Causality and Surrogates: Bridge Vulnerability and Resilience

Date: 11/14/2019
Time: 8:00 AM - 9:30 AM
Location: NAS Board Room

Session Description:
This session focuses on the relationship between changes in precipitation and the vulnerability of bridges to these changes. When examined comprehensively and in detail, this relationship can be simultaneously "compounding" and "confounding". We will try to step the audience through the scour processes at work and statistical relations between precipitation, flow, velocity, flow depth and ultimately scour. We will look at uncertainties and other concerns such as watershed characteristics, bridge site geometry and vehicle loading configurations and how they complicate the picture. We will examine the ways floods are changing in the US and the significance of those changes. Finally, we will run through a project that strives to account for these changes so that bridges due for replacement can be built back in a resilient manner based on sound science.

Moderator:  Brian Beucler, Federal Highway Administration

Presenter Name: Joe Krolak, 
Title: Scour and Extreme Events: Focusing on the Issues 
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Presenter Name: Chao Huang, GENEX Systems
Title: Impacts of Flood Change on Bridge Scour Reliability 
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Presenter Name: Stacey Archfield, Water Mission Area, U.S. Geological Survey
Title: Detection and Attribution of Flood Change across the United States 
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Presenter Name: Daniel Szekeres, Michael Baker International
Title: Development of Site-Specific Hydrologic and Hydraulic Analyses for Assessing Transportation Infrastructure Vulnerability and Risks to Climate Change 
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