Greendale Flood Map Information Open House

Flood Map Information Open House

Representatives from the Federal Emergency Management Agency (FEMA) will host a Flood Map Information Open House for Milwaukee County on October 11, 2022. The Open House will provide county residents with an opportunity to review a recently completed preliminary Flood Insurance Study (FIS) and its accompanying preliminary Flood Insurance Rate Maps (FIRMs) for the Milwaukee River Watershed and Lake Michigan coastal areas.

The FIS and the FIRMs provide base flood (also known as the one percent annual chance event) information, designate areas that are subject to significant flood hazards within the county and offer information that public officials may use when permitting development in the floodplain.

The Open House will be staffed with representatives from various local, state, and federal agencies who will provide the most current information about flood risk, flood insurance, floodplain development regulations, and the process for floodplain mapping within Milwaukee County. The newly prepared preliminary floodplain maps will be on display. Once the maps become effective, they will be used as the basis for flood insurance as well as local flood protection regulations adopted under the National Flood Insurance Program. FEMA also intends that they be used to assist planning processes and outreach efforts for better resiliency in response to flood and storm events. 

WHAT:            Milwaukee County Flood Map Information Open House

WHEN:            October 11, 2022, from 4:00-7:00pm

WHERE:          Join Zoom Meeting:

                        Meeting ID: 858 7174 5563
                         Passcode: 341650

In the United States, 98 percent of counties have experienced a flooding event. Property owners, Realtors, lenders, and insurance agents are urged to take advantage of this opportunity to learn more about flood risk and hazard mitigation within their community. Digital files of the Preliminary FIRM and FIS report can be downloaded from or viewed via the Map Service Center (MSC) Preliminary Map Change viewer, at

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