Gretna Water Damage and Flood Cleanup on the West Bank

Jefferson Parish's Seat, Sitting Level With the Sea

Gretna is the parish seat of Jefferson Parish and an incorporated city with its own government, covering roughly 4 square miles on the West Bank directly across the Mississippi from uptown New Orleans. Behind the river levee the city sits at about sea level, so rainfall is carried away by interior canals and pumps rather than by gravity.

That makes drainage a neighborhood-by-neighborhood issue. The city keeps a Repetitive Loss Area Analysis report identifying properties that have flooded more than once, uses flood maps based on the 2018 Flood Insurance Study, and has a dedicated floodplain manager. Residents can review the city's flood mitigation page for map and insurance guidance.

Jonestown, the 25th Street Canal and the Resilience District

Flooding in Gretna is often local. The Jonestown neighborhood has longstanding drainage needs around the 25th Street Canal, and in 2017 the City Council created the Gretna Resilience District to direct resources toward community-scale flood risk reduction there. The district runs from the Westbank Expressway south to the Hero Canal, with Belle Chasse Highway and the Whitney Canal on its eastern side.

A $10 million FEMA non-disaster grant in 2019 funded a full retrofit of the 25th Street Canal with low-impact design features, and Gretna City Park improvements were planned to balance recreation with flood risk reduction. These projects help, but they do not remove the need for quick flood cleanup in Gretna when a heavy storm puts water in a house.

Caring for Creole Cottages, Shotguns and Bungalows

Downtown Gretna's National Register historic district spans about 130 acres and includes 737 buildings and structures, built from about 1845 to 1935. Creole cottages, shotgun houses, bungalows and corner commercial buildings line its streets, with styles from Greek Revival and Italianate to Colonial Revival.

Older homes bring particular water damage concerns:

• Roof and flashing leaks can soak plaster or ceiling drywall for days before a stain appears.
• Original wood floors and trim may be worth drying in place rather than replacing, when the water was clean and the response was fast.
• Hidden framing can hold moisture behind walls long after the surface feels dry.

Ask the restoration company how it handles older materials, and check with the City of Gretna about permits before rebuilding work begins.

If Water Is Coming In Right Now

1. Stay clear of electricity. Do not step into water near outlets or appliances, and keep away from any downed lines outside.
2. Close the valve. For a plumbing failure, shut off the main water supply to the house.
3. Contain a roof leak. Place buckets and move valuables. If a ceiling is bulging, keep people out of the room underneath.
4. Treat outside water as dirty. Water from flooded streets or a sewer backup counts as Category 3 under IICRC S500 terms.
5. Document the damage. Take wide and close-up photos of every affected area.
6. Get a professional on the way. Call (888) 817-5061, and we will connect you with a local company for emergency water removal.

Hurricane Wind, Outages and West Bank Storms

Hurricane season runs June 1 through November 30. When Hurricane Ida made landfall in 2021 as a Category 4 storm near Port Fourchon, major damage was reported across Jefferson Parish, and the collapse of a large Entergy transmission tower on the West Bank left much of the parish without power. Roof damage plus days without air conditioning or dehumidification is a hard combination for any home.

Storm damage cleanup in Gretna usually begins with emergency tarping, then removal of wet ceilings and insulation, followed by drying. Sign up for the Jefferson Parish Community Alert System (JPAlert) through the city's emergency preparedness page. Gretna also offers hurricane evacuation transportation help for incorporated Gretna and the Timberlane subdivision, and registration must be renewed every year.

How Restoration Crews Dry and Rebuild

Water damage restoration in Gretna typically starts with extraction of standing water, followed by moisture mapping with meters and thermal cameras. Wet drywall and insulation that cannot be saved are cut out, especially when floodwater was involved.

Next comes structural drying, with dehumidifiers and air movers running until framing, subfloors and plaster read dry. The final stage is water damage repair, from drywall and paint to flooring and cabinets. A good provider will share daily moisture readings so you know when rebuilding can safely start.

Mold Prevention and Louisiana Remediation Licensing

Mold can take hold on damp materials within 24 to 48 hours, and older homes with plaster, wood lath and crawlspaces can hide it well. Prompt drying is the best defense.

When mold removal in Gretna is needed on a larger scale, check the contractor's state credentials. The Louisiana State Licensing Board for Contractors says a Mold Remediation license applies to remediation valued at $7,500 or more, with 24 hours of board-approved training in remediation and basic mold assessment. Because these figures can change, confirm them and verify the company at lslbc.gov. Learn more on our mold removal page.

Flood Coverage, Claims and Commercial Properties

Standard homeowners policies generally exclude flood, so rising water calls for NFIP or private flood coverage, which the City of Gretna encourages residents to carry. A new NFIP policy typically has a 30-day waiting period. Keep photos, receipts for tarping and extraction, and the restoration company's drying logs for your adjuster.

Wind and flood are often treated as separate losses, so note whether water entered from above through a damaged roof or rose from the ground. Write down every conversation with your insurer, including dates and names, and hold on to samples or photos of removed materials such as flooring and cabinets until the adjuster has seen them.

Businesses along Belle Chasse Highway, the Westbank Expressway and downtown can call (888) 817-5061 as well; the line is available 24/7. Ask any restoration company about licensing, insurance and training before signing. Neighboring help is listed on our Harvey and New Orleans pages.

Gretna Neighborhoods and Nearby West Bank Communities

Calls from across Gretna and surrounding West Bank and East Bank communities can be connected with independent local restoration providers.

Neighborhoods

• Gretna Historic District (downtown)
• McDonoghville
• Jonestown
• Timberlane
• Gretna City Park area
• Belle Chasse Highway corridor

Nearby communities

• Terrytown
• Harvey
• Marrero
• Algiers
• Belle Chasse
• Westwego
• Woodmere
• Estelle
• New Orleans
• Metairie

Local emergency and flood resources

Official sources for alerts, flood maps and preparedness in and around Gretna:

• City of Gretna Emergency Preparedness
• City of Gretna Flood Mitigation
• FEMA Flood Map Service Center
• Louisiana State Licensing Board for Contractors