Indiana State Government
- Department of Environmental Management
- Department of Natural Resources
- Department of Transportation
- General Assembly
- Natural Resources Commission
Federal Government
- Corps of Engineers - Detroit District
- Corps of Engineers - Louisville District
- Corps of Engineers - Hydrologic Engineering Center
- Federal Emergency Management Agency
- National Hydrography Dataset
- Natural Resources Conservation Service - Federal Offices
- Natural Resources Conservation Service - Indiana Office
- National Weather Service - Indianapolis
- National Weather Service - Ohio River Forecast Center
- U.S. Geological Survey - Indiana District
- U.S. Geological Survey - Digital data sets in ARC-INFO format
- U.S. Geological Survey - Real-time streamflow data
Information
- Association of Indiana Conservancy Districts
- Commission Floodways Nonrule Policy Document
- GIS and other map resources on the internet
- GIS / Mapping data from Indiana University
- Great Lakes Information Network
- Indiana Association for Floodplain and Stormwater Management
- Indiana Lake Michigan Coastal Program
- Indiana Navigable Waters Roster
- Natural Resources Commission Floodway Criteria
- Outstanding Rivers List for Indiana
- Public Freshwater Lake List in Indiana
- Public Freshwater Lake - Legal and Average Normal Water Levels
- Salmonid Streams - designated under 327 IAC 2-1.5-5(a)(3)
- Lakeshore Underwater Beach Construction
- Floodway Habitat Mitigation Guidelines