McDonough County Flood Hazard Information
Currently Effective Map Products (click to show)
Effective Regulatory Products
Effective products are the official regulatory products as adopted by FEMA and a given local community for the National Flood Insurance Program (NFIP). The products are intended to be used as the basis for official actions required by the NFIP. The products may include Flood Insurance Rate Maps (FIRM), Flood Insurance Study (FIS) reports, FIRM Databases, and effective Letters of Map Change (LOMC).
Effective Flood Insurance Rate Maps for McDonough County may be viewed and/or downloaded at the FEMA Flood Map Service Center (MSC).
 Additionally, effective flood hazard data can be viewed in FEMA's National Flood Hazard Layer viewer (NFHL). Counties with a status of Effective or any of the PMR statuses (symbolized with diagonal lines) on the Resources by County map are included in the NFHL viewer. Zoom to an area or use the search bar to find a specific location.  Full FIRM panels or a “FIRMette” of a smaller area can be exported using the NFHL Print Tool.
Additionally, effective flood hazard data can be viewed in FEMA's National Flood Hazard Layer viewer (NFHL). Counties with a status of Effective or any of the PMR statuses (symbolized with diagonal lines) on the Resources by County map are included in the NFHL viewer. Zoom to an area or use the search bar to find a specific location.  Full FIRM panels or a “FIRMette” of a smaller area can be exported using the NFHL Print Tool.
Non-regulatory Products
Non-regulatory products, referred to as Flood Risk Products (FRP), go beyond the basic flood hazard information found in the official regulatory products. The Flood Risk Database, which parallels the FIRM database, provides a wealth of data that may be used to analyze, communicate, and visualize flood risk. Communities are encouraged to use this database to support mitigation efforts and raise awareness. Non-Regulatory products such as Flood Risk Databases are also available at the MSC.
Mapping Phase
Preliminary Map Products
Released 11/4/2024, Preliminary products are available below, or at higher resolution from the FEMA MSC:
 			  17109C0025C
 			  17109C0050C
 			  17109C0100C
 			  17109C0113C
 			  17109C0142C
 			  17109C0150C
 			  17109C0161C
 			  17109C0169C
 			  17109C0175C
 			  17109C0188C
 			  17109C0189C
 			  17109C0191C
 			  17109C0200C
 			  17109C0217C
 			  17109C0225C
 			  17109C0236C
 			  17109C0250C
 			  17109C0275C
 			  17109C0284C
 			  17109C0285C
 			  17109C0300C
 			  17109C0301C
 			  17109C0302C
 			  17109C0303C
 			  17109C0304C
 			  17109C0306C
 			  17109C0307C
 			  17109C0308C
 			  17109C0309C
 			  17109C0312C
 			  17109C0315C
 			  17109C0320C
 			  17109C0327C
 			  17109C0331C
 			  17109C0350C
 			  17109C0375C
 			  17109C0400C
 			  17109C0425C
 			  17109C0450C
 			  17109C0461C
 			  17109C0475C
 			  17109C0500C
			  Index
			  Preliminary FIS
			  Preliminary FIRM Database
			  Download All (Panels, FIS, Database)
			
Changes Since Last FIRM
Consultation Coordination Officer (CCO) Meeting
4/23/2025
- Meeting Recording: Watch Video (hosted on Illinois Media Space) Watch Video (hosted on Illinois Media Space)
 Download MP4 (358 MB) Download MP4 (358 MB)
 
 Meeting Presentation (PDF) Meeting Presentation (PDF)
Data Development Phase
Flood Risk Review Meeting
5/18/2023
- Meeting Recording: Watch Video (hosted on Illinois Media Space) Watch Video (hosted on Illinois Media Space)
  Download MP4 (83 MB)  Download MP4 (83 MB)
 
 Meeting Presentation (PDF) Meeting Presentation (PDF)
Project Initiation Coordination Call
10/13/2020
- Meeting Recording: Watch Video (hosted on Illinois Media Space) Watch Video (hosted on Illinois Media Space)
  Download MP4 (195 MB)  Download MP4 (195 MB)
 
 Meeting Presentation (PDF) Meeting Presentation (PDF)
Additional Resources
- • Floodplain Mapping 101
- • Destined for DFIRMs
- • Building Footprints
- • Topographic Wetness Index
- • Links to National Flood Insurance Program (NFIP) Information
 Preliminary Changes Since Last FIRM (CLSF) Viewer (ISWS)
 Preliminary Changes Since Last FIRM (CLSF) Viewer (ISWS)






