Evaluating Bridge Hydraulic Risk – Jeff DeGraff, VTrans:

When extreme weather events occur, transportation agencies are forced to respond quickly and effectively with limited personnel and resources.  Using the best available data for both weather and assets is key.  This presentation will provide lessons learned from recent extreme events and discuss current efforts to better understand hydraulic risk in near real-time using hydraulic analysis and high-precision weather data.
  
Leveraging Rainfall Data to Better Understand Risk – Erik Zuker, HNTB:

Using high-precision rainfall data from NOAA, a multi-state, multi-year dataset has been created that reports rainfall estimates at tens of thousands of bridges.  Individual storms and bridge failures can now be evaluated to a more granular level.  Also, by evaluating the rainfall estimates at a large population of bridges, design criteria exceedance can be evaluated over time, geospatially, and for the entire inventory.  By reviewing actual rainfall against assumed exceedance probabilities, a clearer picture of individual and cumulative risk emerges.

Vermont Transportation Resilience Planning Tool (TRPT) – Andrea Wright, VTrans:

Vermont developed a statewide web-based application that identifies bridges, culverts, and road embankments that are vulnerable to damage from floods, estimates risk based on the vulnerability and criticality of roadway segments, and identifies potential mitigation measures based on factors driving the vulnerability. The tool’s distinctive feature is in the innovative methodology used to categorize flood vulnerability as well as the conveyance of this information to be accessible by technical and non-technical audiences. The TRPT is designed to inform a range of applications and stages of decision-making from planning to grant applications and capital budgeting.

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