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Floodplain Information
Floodplain Map
Thumbnail of 2008 Flood Hazard Map
Flood Hazard Areas?
There are two main areas in Westchester that are in the 100-year floodplain. The northern area of town is in the 100-year floodplain for Addison Creek.  There is another 100-year flood plain area on the south end of town that is tributary to Salt Creek.  This area runs roughly west to east a few blocks north of 31st Street. The storms that have occurred that cause flooding to occur are generally storms that produce a lot of rain. For example, the main event in July of 2010 that caused Addison Creek and Salt Creek to overflow their banks was over seven inches of rain in a 12 hour period. Flooding has occurred along each of the creeks in 2006, 2008, and 2010.
Larger version of Flood Hazard Map

National Flood Insurance Program
Information about the National Flood Insurance Program (NFIP) may be found here. 

Flood Insurance Rate Map (FIRM)
About FIRM
The Village offers a Flood Insurance Rate Map (FIRM) information service. Please call the Community Development Department at 708-345-0199 for additional information 

The Map Information Service for a specific address includes;
  1. Whether the property is in a Special Flood Hazard Area (SFHA)  and any mandatory flood insurance purchase requirements. 
  2. The community number, panel number, suffix and date of the FIRM's index
  3. The FIRM zone and base flood elevation. 
  4. Any other questions you may have regarding floodplain management. 
The Village has elevation certificates on file for all new construction beginning with 2012. 

Additional Information
If you should require further or more detailed information regarding flood-related issues in Westchester, here are some additional sources:

Westchester Village Hall 708-345-0020

Westchester Public Library

Aerial with Floodplain

Floodplain: Check before you buy

How to get information regarding your address

National Weather Service DesPlaines River Elevation

FEMA