![hec ras deck/roadway location hec ras deck/roadway location](https://rashms.com/wp-content/uploads/2021/05/SKEW-BRIDGE-1.png)
Service(s): Dam Breach Analysis – Hydraulic Modeling / Routing – Flood Inundation Mapping – Emergency Action Plan
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Location: Canal E-4 & Little Econlockhatchee River Orange County, FL Project: Dam Breach Analyses, Flood Maps, and EAP Michaels and Banner Dams Orange County, Florida The map to the right and below shows the flood extents and depths resulting from aġ00-year storm and a cascading failure of the dam structures. The Watershed Modeling System (WMS) and ESRI ArcMap programs were used to prepare flood inundation maps. Army Corps of Engineers HEC-RAS program was selected because of its abilities to model complex riverine conditions, bridge and culvert structures, and dam failures. Drainage Engineer – Roger Miles GIS/Mapping Specialistīackground information included bathymetric data from a previous countywide flood study by Singhofen & Associates, Inc., LiDAR data by Orange County Engineering, and bridge data obtained from the Federal Highway Administration’s National Bridge Inventory Database. Project Engineer(s): Eric Falkenberry, P.E., CFM Sr. Service(s): Dam Breach Analysis – Hydraulic Modeling / Routing – Flood Inundation Mapping Location: Lakewood Manor Subdivision Bay County, FLĬlient: Florida Department of Environmental Protection Bureau of Mining and Minerals Regulation Project: Lakewood Manor Dam Break Analysis Bay County, Florida Such an event could cause a dam failure and adverse flooding downstream. The conclusion and findings of the analysis were that a probable maximum precipitation storm event would likely result in an over-topping of the dam. HEC-HMS and HEC-RAS were used with WMS to develop the flood hydrographs, model the dam failure, and route the flood wave through the downstream channel.
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WMS was used to process Lidar data, high resolution aerials, and other map data. Army Corps of Engineers HEC-HMS and HEC-RAS programs and the Watershed Modeling System (WMS) program to analyze the upstream basin, develop runoff hydrographs, evaluate the potential for over topping, perform a dam breach analysis, and produce flood inundation maps.