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Soil and Water Conservation Districts – Dam Breach Inundation Study Updates (DBIZ: Past, Present, & Future)

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The Department of Conservation and Recreation – Division of Soil and Water Conservation in 2019 started to review and update existing Dam Breach Inundation Studies.  Key elements updated include 2015 Virginia Probable Maximum Precipitation Values, 2018 Virginia Probable Maximum Precipitation Temporal Distribution, 2021 USDA-Natural Resources Conservation Service Hydrologic Soils Ratings, Lidar topography, Hec-RAS 2D modeling, […]

2

Current Best Design Practices Using Articulating Concrete Blocks (ACBs) in Super Critical Flow Conditions

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This presentation will cover a brief history of the technology development relating to ACB design and applications leading up to the current design guidance considered the best practice for the industry. The evolution of the Factor of Safety calculations (FOS) has evolved over the last 30 years, culminating in 2010 with the PhD dissertation of […]