Important Links

• Indiana Department of Natural Resources
  • Division of Water
  • Indiana Drainage Handbook
• Indiana Department of Environmental Management (IDEM)
  • Section 401 Permits
• US Army Corps of Engineers - Louisville District (US ACOE)
  • The Hydrologic Engineering Center (HEC) - Approved Software
• US Environmental Protection Agency
• Federal Emergency Management Agency
  • Forms
  • Floodplain General Information
    • Delineation
    • Needed data to define floodplains
    • Letter of Map Amendment (LOMA)
    • Letter of Map Revision-Fill (LOMR-F)
• Indiana Geographic Information Council (IGIC)