A planning tool for preliminary assessment of transportation infrastructure vulnerable to current and future flooding


Sea Level Rise (SLR) Inundation Surface Calculator, ArcGIS Add-in

Software Requirements: ESRI ArcGIS Desktop with Spatial Analyst


The Sea Level Rise (SLR) Inundation Surface Calculator assists users in creating GIS layers representing potentially inundated areas due to various sea level rise scenarios. The calculator uses the U.S. Army Corp of Engineers (USACE) sea level change projection methodology, as specified in Engineer Circular EC 1165-2-212, along with National Oceanic and Atmospheric Administration (NOAA) tide gauge data and sea level trends.

The SLR calculator is an add-in for ArcGIS Desktop, which is required to run this tool, along with the Spatial Analyst extension. An add-in is a customized tool or toolbar that can be added to an ArcGIS for Desktop application (i.e. ArcMap, ArcCatalog, etc) to run custom GIS functions. Intermediate GIS expertise is recommended for using the SLR calculator.

The calculator outputs include a bathtub inundation surface and a refined inundation surface with hydrologic connectivity filter run. Both outputs are available in raster or vector feature class format.

The SLR calculator can be downloaded with or without a Digital Elevation Model (DEM) dataset. Depending on the download package you selected, the zip included either a DEM for the entire State of Florida or a DEM clipped to one of the seven FDOT Districts.

Please read the User Guide before using.

SLR Calculator, Version 1.6, July 2016

Software Requirements: ESRI ArcGIS Desktop 10.3.1 or 10.4 with Spatial Analyst

New features of this calculator include:
– Support for ArcGIS 10.3.1 and 10.4
– Option for adding custom increment of SLR. Users enter a SLR value in vertical units in order to calculate the inundation surfaces for that value.
– New popup help dialogs.
– ArcGIS online data browse button (to add DEM services).
– New DEM Custom Clipping: clip your output layers by county or custom shape.
– Updated values for Daytona Beach Shores Tide Station.

SLR Calculator, Version 1.5.2, November 2014

Software Requirements: ESRI ArcGIS Desktop 10.1 or 10.2.2 with Spatial Analyst