Welcome to MSD’s "Online Floodplain Determination Application" for Jefferson County, Kentucky.   MSD is the Official Map Repository of the Jefferson County, Kentucky Flood Insurance Rate Maps (FIRM).  Using the power of the LOJIC GIS, you can determine if a structure is located in a designated floodplain,  For instructions on how to use the Floodplain Determination Application click here.  Otherwise, click on the link below:   

 

  Floodplain Determinations

  This service is available 7 days a week except from 2:00AM to 3:15AM nightly.

Please review our Frequently Asked Questions page for more information.

 

SYSTEM REQUIREMENTS:

 

  • Browser: Microsoft Internet Explorer 6.2 or 6.x  and  Netscape Communicator and Navigator 7.1.
  • Optimal Display Resolution: 800 X 600 or greater.  
  • Popup Window Blocking Software must be turned off to use the application.
  • Software Plugins:  To read the Floodplain Determination form that the system generates as result of your query, you must have Adobe Reader 5.0 or higher loaded on your PC before you run the application.  To download the software, click on the following link to get Adobe Acrobat Reader.  

 

DISCLAIMER STATEMENTS:

 

Federal law requires that a flood insurance policy be obtained as a condition of a federally-backed mortgage or loan that is secured for the building.

 

The floodplain determination letter does not imply that the reference property will or will not be free from flooding or damage.  A property not in a Special Flood Hazard Area may be damaged by a flood greater than that predicted on the FIRM or from a local drainage problem not shown on the map.  This letter does not create liability on the part of MSD, or any officer or employee thereof, for any damage that results from reliance on this determination.

 

DEFINITIONS AND TERMS:

 

Flood Hazard Zone designations in Jefferson County are:

  • Zone A is the flood insurance rate zone that corresponds to the 100-year floodplains that are determined in the Flood Insurance Study (FIS) by approximate methods. Because detailed hydraulic analyses are not performed for such areas, no Base Flood Elevations (BFEs) or depths are shown within this zone. Mandatory flood insurance purchase requirements apply.

  • Zone AE is the flood insurance rate zone that corresponds to the 100-year floodplains that are determined in the FIS by detailed methods. In most instances, BFEs derived from the detailed hydraulic analyses are shown at selected intervals within this zone. Mandatory flood insurance purchase requirements apply.

  • Zone X is the flood insurance rate zone that corresponds to areas outside the 100-year floodplains, areas of 100-year sheet flow flooding where average depths are less than 1 foot, areas of 100-year stream flooding where the contributing drainage area is less than 1 square mile, or areas protected from the 100-year flood by levees. No BFEs or depths are shown within this zone.

BFE - Base Flood Elevation (BFE): Defined by FEMA as the elevation of the crest of the base or 100-year flood relative to mean sea level.  BFE is not the depth of flooding.  To determine depth of flooding, you would need to subtract the lowest elevation of a particular property from the BFE.

 

(Source:  National Flood Insurance Program (NFIP))

 

 

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Metropolitan Sewer District (MSD) Louisville, Kentucky