DuPage County Flood Map Sets

FEMA Digital Flood Insurance Rate Map (DFIRM)

View Digital Flood Insurance Rate Map  

• Purpose: FEMA flood insurance rating only
• Initial Publication: 16 December 2004
• Initial Basis: 31 December 2003
• Currency: 31 December 2003
• Source: FEMA’s Mapping Contractor Dewberry, using 31 December 2003 DuPage County RFM map data
• Development: MicroStation CAD, ESRI ArcInfo GIS
• Maintenance Frequency: Latest official update by FEMA

DuPage Regulatory Flood Map (RFM)

View Regulatory Flood Map  

• Purpose: All DuPage regulatory purposes
• Initial Publication: 01 July 2004
• Initial Basis: 01 July 2004
• Currency: 10 July2009
• Source: FEMA’s Cooperating Technical
  Partner DuPage County, using adapted FEMA and DuPage County data and accruing FEMA Letters of Map Change
• Development: ESRIArcInfo GIS
• Maintenance Frequency: Latest official update by DuPage,usually quarter-annually
• FEQ Status Map-This map shows thestatus of FEQ models for watersheds in DuPage County. The watersheds include Salt Creek, East Branch DuPage River, West Branch DuPage River, and Sawmill Creek.