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Indiana Department of Natural Resources

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Indiana Department of Natural Resources

Water > Surface Water > Hydrologic / Hydraulic Models & Assessments > Preliminary Digital Flood Insurance Rate Maps Preliminary Digital Flood Insurance Rate Maps

Welcome to the Division of Water Map Modernization web page. This page was developed to help support the state's floodplain mapping Initiative. On this site you will be able to view the preliminary maps, check the status of the mapping, and find general information regarding the mapping program, floodplain management, and hydrologic and hydraulic modeling. Maps are in PDF format. To view them, make sure your Web browser is configured to display PDFs (instead of downloading and viewing them in Adobe Acrobat). On the Macintosh, the procedure works with Safari, but not Firefox.

Available Preliminary Digital Flood Insurance Rate Maps are shaded in yellow, final maps are blue and will redirect you to the FEMA website.

Additional revisions are preliminary and identified with a cross hatch pattern on the map below for limited counties identified as PMR (Physical Map Revision) or LOMR (Letter Of Map Revision). 

State MapVanderburgh county (final)Ripley county (final)Jennings county (preliminary)Jackson county (preliminary)Daviess county (preliminary)Johnson county (final)Marion county (preliminary)Hamilton county (preliminary)Madison county (final with PMR)Grant county (not yet available)Adams county (final)Huntington county (preliminary)White county (final)Allen county (final)Whitley county (preliminary)Fulton county (final)DeKalb county (final)Starke county (final)Lake county (final with PMR)Dearborn county (final)Fayette county (preliminary)Hendricks county (final)Hancock county (final)Monroe county (final)Posey county (preliminary)Warrick county (final)Spencer county (preliminary)Perry county (preliminary)Crawford county (final)Harrison county (preliminary)Floyd county (final)Clark county (final)Scott county (final)Switzerland county (final)Jefferson county (preliminary)Washington county (preliminary)Orange county (final)Dubois county (preliminary)Pike county (preliminary)Gibson county (preliminary)Ohio county (final)Lawrence county (final)Martin county (preliminary)Knox county (not yet available)Bartholomew county (preliminary)Decatur county (final)Sullivan county (not yet available)Brown county (preliminary)Clay county (final)Vigo county (final)Owen county (final)Franklin county (final)Morgan county (preliminary)Rush county (preliminary)Union county (final)Wayne county (preliminary)Shelby county (preliminary)Putnam county (final)Parke county (final)Vermillion county (final)Warren county (final)Howard county (preliminary)Wells county (preliminary)Clinton county (final)Miami county (final)Montgomery county (final)Randolph county (final)Tipton county (final)Tippecanoe county  (final)Jay county (final)Wabash county (final)Kosciusko county (preliminary)Noble county (preliminary)Marshall county (final)Pulaski county (final)Newton county (preliminary)Henry county (preliminary)Greene county (preliminary)Delaware county (final)Boone county (final)Jasper county (preliminary)Fountain county (final)Benton county (final)Blackford county (final)Cass county (preliminary)Carroll county (preliminary)Porter County (preliminary)LaPorte county (final)St. Joseph county (final)Elkhart county (final)Lagrange county (final)Steuben county (final)

Preliminary

Final

Map Revisions
PMR/LOMR
    

Related Links

Indiana Floodplain Mapping Quick Links

  • The Indiana Floodplain Information Portal
    Launch INFIP, an interactive floodplain mapping tool, which includes address searching and eFARA, the Division of Water’s on-line floodplain analysis submittal tools.  INFIP also now includes the “Best Available Data” layer, showing up to date floodplain mapping information.
  • FEMA Map Service Center
    View and download official FEMA floodplain mapping products, including Flood Insurance Rate Maps, Flood Insurance Studies, Letters of Map Change (LOMA, LOMR-F, LOMR) FIRM database information, and preliminary and historic mapping products.
  • The Indiana Hydrology and Hydraulics Model Library
    View and download previous hydrologic and hydraulic models developed for Flood Insurance Studies, Construction in a Floodway applications, Floodplain Analysis / Regulatory Assessment (FARA), and others.
  • The General Guidelines for the Hydrologic-Hydraulic Assessment of Floodplains in Indiana 
    Technical guidance documents for developing floodplain modeling for submittal to the Division of Water.  Also includes external links to other modeling information.
  • NOAA Atlas 14 Point Precipitation Frequency Estimates
    Estimates of rainfall depths and distributions for various return periods throughout the state.
  • The Indiana Peak Indiana Peak Discharge Determination System
    Launch IPDDS, the Division of Water’s hydrologic computation system.  Includes directions on how to submit information to the Division for approval. 
  • The Indiana DNR HEC-RAS Geometric Data Tool
    This tool uses the State of Indiana’s LiDAR dataset, along with the National Hydrography Dataset, to create a Geometric Input file for HEC-RAS, the Corps of Engineers hydraulic modeling program.
  • Fluvial Erosion Hazards in Indiana
    The Fluvial Erosion Hazards portal features mapping of approximate areas of stream migration for communities to better manage river corridors. The setbacks vary based on the stream’s recent migration history (mobile or non-mobile).
  • Non Levee Embankments in Indiana
    The Non-Levee Embankment project is a joint effort between The Indiana Silver Jackets, The Polis Center, IMAGIS/Indy GIS, INDNR and SIU Geography. The purpose of the project is to identify non-levee embankments (NLE) utilizing LiDAR and geoprocessing techniques. NLE are elevated linear features adjacent to waterways and within the floodplain.
  • USGS Flood Inundation Mapper
    The Flood Inundation Mapper shows estimates of flood inundation areas based on USGS stream gage information. Areas are shown based on gage height, allowing users to view the approximate limits of a flood based on a reported gage reading.
  • Floodplain Management & Homeowner Information
    More information regarding floodplain management with respect to both insurance and construction.
  • Indiana DNR Basin Teams and ESC contact information
    Contact information for the ESC section managers.
  • Frequently Asked Questions
    Answers regarding floodplain maps and flood insurance.
  • InDNR Spatial Data website
    Download spatial data related to floodplain mapping.