A planning tool for preliminary assessment of transportation infrastructure vulnerable to current and future flooding
The SLR inundation surfaces available for download on this page were created by the University of Florida GeoPlan Center using the United States Army Corps of Engineers (USACE) Sea-Level Change Curve Calculator (2015.46), USACE SLR projections (2013), National Oceanic and Atmospheric Administration (NOAA) SLR projections (2012), NOAA tide gauge data, NOAA tidal surfaces, and a 5-meter horizontal resolution Digital Elevation Model (DEM). SLR scenarios were mapped by county using local tide gauge data and sea level trends.
Inundation model outputs include a simple bathtub model and a modified bathtub model that applies a hydrologic connectivity filter to remove isolated inundated areas not connected to a major waterway. Additionally, some model outputs represent the approximate depth of flooding for a SLR scenario and other model outputs represent the extent of flooding for a SLR scenario. Both vector and raster formats of the SLR inundation surfaces are contained in the FGDB download.
Each download contains a zipped ArcGIS 10.4.1 ESRI File Geodatabase (FGDB) with multiple inundation surfaces (feature classes) for one decade and one tidal datum. There are many feature classes included in each download (up to 30), so please read the document below carefully.
There are two types of transportation data that were analyzed for current and future flood exposure. The first type is Road Characteristics Inventory (RCI) data from the Florida Department of Transportation. The second type is Strategic Intermodal Systems (SIS) data from the Florida Department of Transportation. Both types were intersected against the SLR Inundation Surfaces to determine the amount and percentage of impact per road, rail, and highway segment and facility type. The RCI data is available for download by County and State, while the SIS data is only available for download by State. Each decade of transportation data includes analysis of five SLR projects.