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2nd Street and Huey P. Long Ave.
Gretna, LA 70053
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Flood Mitigation Information

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Flood insurance rate maps are changing.
Review how your home may be impacted at the LSU Ag Center Flood Map portal. 

LSU Ag Center Logo

Lafayette St., 1891
Lafayette Street, 1891

Flooding and its impact are ongoing concerns for the citizens of Gretna. To address this problem, the city administration authorized a flood mitigation planning effort. Over a period of months, a Mitigation Planning Committee met to review what could be done to reduce the safety hazards, health hazards, and property damage caused by flooding and related drainage problems. The Committee produced a Flood Hazard Mitigation Plan to guide the City's hazard mitigation efforts.

The Committee reviewed a variety of mitigation measures, organized under five general strategies:

  • Preventive - e.g., zoning, building codes, and other developmental regulations
  • Property protection - e.g., relocation out of harm's way, retrofitting buildings, insurance
  • Emergency services - e.g., warning, sandbagging, evacuation
  • Flood control - e.g., levees, stormwater management, drainage improvements
  • Public information - e.g., outreach projects, technical assistance to property owners
The City Council adopted the plan on May 9, 2007. The plan was submitted for review by the Governor's Office of Homeland Security and Emergency Preparedness (GOHSEP) and FEMA Region VI. The approved plan has qualified the city to receive FEMA funded FMA (Flood Mitigation Activity) grants that will contribute needed funds towards specific mitigation projects.
The currently effective Advisory Base Flood Elevation (ABFE) maps are available for download:
The plan is viewable online by chapter (Adobe PDF format):

Special Report Available:
"Non-Structural Storm Mitigation
Assessment and Enhancement Plan"
This new plan produced by the University of New Orleans Center for Hazards Assessment, Response & Technology (UNO-CHART) elaborates and refines non-structural mitigation options tailored for Gretna. The report was produced as part of a larger study developed for the Louisiana Department of Transportation and Development.

UNO-CHART Mitigation Study 2010

Flood Insurance
Flood Awareness Fact Sheet
How to Purchase Flood Insurance - information at
Determine Your Flood Risk - an online tool at
Louisiana Flood Fact Sheet (downloadable document)
After the Flood - Tips from the National Flood Insurance Program (downloadable document)
Help After a Disaster - Applicant's Guide to the Individuals & Households Program (downloadable document)
Tips for Filing Your Flood Insurance Claim (downloadable document)
SBA Fact Sheet - Disaster Loans (downloadable document)
Jefferson Parish Flood Mitigation Information (downloadable document)
Repairing Your Flooded Home (downloadable document)

Building Protection

Above the Flood: Elevating Your Flood Prone House (downloadble document)
Homeowner's Guide to Retrofitting (downloadable document)
Elevated Residential Structures - Pt 1 (downloadable document)
Elevated Residential Structures - Pt 2(downloadable document)
Protecting Manufactured Homes from Floods & Other Hazards - Pt 1 (downloadble document)
Protecting Manufactured Homes from Floods & Other Hazards - Pt 2 (downloadble document)
Engineering Principles and Practices for Retrofitting Floodprone Residential Structures, 3rd ed. (offsite link)
Protecting Building Utilities From Flood Damage (offsite link)

Other Resources

View Real-Time Mississippi River Guage Data (Carrollton Station) from the
Flood Mitigation Library
A library of flood mitigation resources are maintained in the Building and Regulatory Inspections Department loto
Find out more about flood insurance at

Contact Information

If you have any questions regarding this service, please contact Danika Gorrondona.