Restoring the Marsh
Discover how we are reviving Louisiana's wetlands, one acre at a time, to protect wildlife, communities, and the environment.
Dyke Marsh: A Disappearing Tidal Wetland
Without intervention, Dyke Marsh could be gone by 2035. Learn about the critical loss, causes, and urgent need for restoration efforts to preserve this natural treasure.
Why Restore the Marsh?
Louisiana's marshlands are a natural treasure. They protect our communities, provide homes for countless species, and combat climate change. Here's why restoration is crucial:
Protect Biodiversity
Preserve habitats for birds, fish, and other wildlife.
Prevent Flooding
Strengthen natural barriers to protect homes and businesses.
Combat Erosion
Stop the loss of our coastlines with natural defenses.
Critical Loss Without Action
The U.S. Geological Survey (USGS) predicts Dyke Marsh will vanish by 2035 without intervention. Currently, the marsh loses 1.5 to 2 acres annually, with erosion accelerating rapidly.
“Dyke Marsh is the nearest thing to primeval wilderness in the immediate vicinity of the city.” – Louis Halle, 1947
The Impact of Erosion
- Historic Size: Dyke Marsh was 180 acres in 1940, shrinking to 53 acres by 2010 due to erosion.
- Manmade Damage: Dredging from 1940 to 1972 removed over 100 acres, destabilizing the marsh.
- Storm Vulnerability: Storm waves, occurring every three years, now cause significant erosion.
- Loss of Protection: Removal of the southern promontory eliminated natural wave barriers, accelerating destruction.
Key Findings from USGS
- Dyke Marsh is in its “late stages of failure” as a freshwater tidal system.
- Tidal creeks are stripping sediment, causing the marsh to fragment and degrade.
- Without restoration, the marsh will be completely lost by 2035.
- USGS recommends restoring the southern wave break to stabilize the marsh and encourage sediment deposition.
A Call to Action
Immediate restoration efforts are essential to save Dyke Marsh. Join us in protecting this vital wetland for future generations.
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