Flood Maps

 

 

​FEMA Flood Maps

 

FEMA finalized the Flood Insurance Study for Lafayette Parish after a nearly 10-year mapping process. These new, more accurate maps will become effective December 21, 2018. As part of this process, FEMA revised the floodplain boundaries throughout the parish, identifying flood-vulnerable areas. These flood plain maps (also known as Flood Insurance Rate Maps or FIRMs) provide the basis for insurance requirements and floodplain management. 

 

How can I view the new maps? The new maps can be viewed online or in person at the Clifton Chenier Complex, 220 W. Willow Street, Building B, Lafayette, LA 70501.

 

How can I get more information? LCG's Flood Plain Administration is hosting a series of public meetings. Learn more about the new flood maps, check the flood zone on your property, learn more about the importance of flood insurance, and get information on obtaining elevation certificates. 

 

When: Tuesday, Sept. 11, 2018, 6 p.m.                 Where: Broussard Community Center, 108 Broadview Dr., Broussard

When: Wednesday, Sept. 12, 2018, 6 p.m.           Where: Scott Event Center, 110 Lions Club Rd., Scott

When: Wednesday, Sept.19, 2018, 6p.m.             Where: Carencro Community Center, 5115 N. University Ave., Carencro​

 
How do I know if my flood zone changed? Residents who live or own property in an area that is newly mapped into a Special Flood Hazard Area (SFHA) were notified via a mailed letter​. If you are uncertain if you should have recieved this letter, you may call 337-291-8468 or view the new maps to check your status​
 
 
Flooding 

 Flood Zone Map Explanations

 Zone A - Special Flood Hazard Area, within 100 yr floodplain, BFE not determined by FEMA.

 Zone AE - Special Flood Hazard Area, within 100 yr floodplain, Detailed study by FEMA, BFE determined by FEMA.

 Zone AH - Special Flood Hazard Area, within 100 yr floodplain, Areas of ponding, BFE determined by FEMA.

 Zone X500 - Areas not in a Special Flood Hazard Area, within The 500 yr floodplain.

 Zone X - Areas not in a Special Flood Hazard Area, outside The 500 yr floodplain.

  • Flood insurance is mandatory for structures in Special Flood Hazard Areas
  • Floodway – In the floodway, communities must prohibit encroachments, including fill, new construction, substantial improvements, and other development within the adopted floodway unless it has been demonstrated through hydrologic and hydraulic analyses performed in accordance with standard engineering practice that the proposed encroachment would not result in ANY increase in flood levels within the community during the occurrence of the base flood discharge.
  • BFE – Base Flood Elevation, the computed elevation to which floodwater is anticipated to rise during the base flood is the 100-year flood elevation
  • 100-year flood (Base Flood) – is the flood that has a 1% chance of occurring or being exceeded in any given year

 

Current and Preliminary Flood Zone Map PLEASE NOTE: This Preliminary Flood Zone Map is NOT the official map and is subject to change, the paper version is the official map.

Effective July 1, 2009:

As per Ordinance O-110-2009; all structures located in a special flood hazard area within the jurisdiction of the City of Lafayette and the unincorporated areas of Lafayette Parish are now required to build according to the following:

Residential Construction: New Construction or substantial improvement of any residential building (or manufactured home) shall; have the lowest floor, including basement mechanical and utility equipment, and ductwork, elevated no lower than 1 foot above Base Flood Elevation.

Non-Residential Construction: New Construction or substantial improvement of any commercial, industrial, or non-residential building (or manufactured home) shall:

  • Have the lowest floor, including basement, mechanical and utility equipment, and ductwork elevated no lower than 1 foot above the Base Flood Elevation; or
  • Be floodproofed to a level no lower than 1 foot above the level of the Base Flood Elevation, provided that all areas of the building (including mechanical and utility equipment) below the required elevation are watertight with walls substantially impermeable to the passage of water and use structural components having the capability of resisting hydrostatic and hydrodynamic loads and the effects