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 DuPage County Flood Map Sets
 

FEMA DFIRM
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 RFM
Regulatory Flood Map
 

Purpose: All DuPage regulatory purposes
Initial Publication:  01 July 2004
Initial Basis:  01 July 2004
Currency:  10 July 2009
 
Source: FEMA’s Cooperating Technical
Partner DuPage County, using adapted FEMA and DuPage County data and accruing FEMA Letters of Map Change
 
Development:
ESRI ArcInfo GIS
 
Maintenance Frequency: Latest official update by DuPage, usually quarter-annually
 
 




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