A significant portion of the Fritchie Marsh was lost due to
Hurricane Katrina. Post storm shallow open water areas
dominate the landscape which limits the effectiveness of the
PO-06 CWPRRA project. Wetlands in the project vicinity
are being lost at the rate -1.09%/year based on USGS
data from 1985 to 2015. These marshes cannot recover
without replacement of lost sediment, which is critical if the
northshore marshes are to be sustained.
Project goals include restoring and nourishing marsh.
Specific goals of the project are: 1) create approximately 291
acres of marsh; 2) nourish approximately 49 acres of existing
marsh; and 3) construct about 36,610 feet of earthen terraces
or 26 emergent acres.
An alternative analysis was conducted leading to the
selection of features and configuration to compliment and
work synergistically with the existing PO-06 project and
planned mitigation and restoration projects in the Fritchie
Marsh. A robust engineering cost is included to evaluate
increasing the project size if costs allow or adjust the
layout, if needed during Phase 1. Approximately 2 million
cubic yards of material would be placed confined to restore
291 acres and nourish approximately 49 acres of brackish
marsh. Material would be dredged from a borrow site in
Lake Pontchartrain. The borrow site would be designed to
avoid and minimize impacts to aquatic habitat and existing
shorelines. Approximately 26 acres of earthen terraces would
be constructed within various locations totaling approximately
36,610 feet or 523 acres of terrace field. All containment
dikes would be gapped or degraded no later than three years
after construction to facilitate the development of tidal marsh
functions supportive of estuarine species. The terraces would
be planted as well as 50% of the created marsh acres to
expedite colonization and enhance stabilization.
Region 1, Pontchartrain Basin, St. Tammany Parish, located
approximately three miles southeast of Slidell, Louisiana. A
substantial portion of the project is located on Big Branch
National Wildlife Refuge.
This project was approved for Phase I Engineering and
Design in January 2016.
This project is on Priority Project List (PPL) 25.
The Fritchie Marsh Creation and Terracing sponsors include:
The Coastal Wetlands Planning, Protection and Restoration Act leads the fight against Louisiana’s disappearing coast. The native people of coastal Louisiana are greatly worried about losing their homes, sources of livelihood, and culture if the lands they live on continue to disappear. Saltwater intrusion, marshes becoming open water, and the disappearance of barrier islands and protective wetlands are a few of the challenges facing coastal communities. For centuries, marshes have served as home to numerous people: American Indian tribes, Vietnamese, Croatian Americans, and other groups. All of these coastal residents are familiar with the hardship of living in an area frequented by natural disasters. Most coastal residents have chosen to stay on their lands to defend and protect the ecosystem despite the extreme risks. Without the hard work and effort of diligent landowners and organizations like CWPPRA, coastal Louisiana would be vanishing at a much faster rate.
You can read Watermarks #48 People of the Coastal Wetlands to learn more about this topic.
The project is intended to strategically create marsh in large,
open water areas to block wind-induced saltwater
introduction and freshwater loss. In addition, it will increase
nourishment in adjacent marshes while reducing open water
fetch (distance a wave can travel) and the erosion of marsh
Cycle I constructed 214 acres of marsh within the shallow,
open water area within retention dikes. The perimeter of the
created marsh was planted with smooth cordgrass. Dredged
slurry obtained from the Army Corps of Engineers’ dredging
of the Calcasieu River Ship Channel was placed in the
Upon consolidation of the dredged material, the southern
containment dike was degraded and breached to allow for
water movement and restore the area to more natural
conditions. Prior to the placement of dredged material,
trenasses (small, man-made bayous) were constructed in the
project area. These trenasses facilitate natural conditions and
allow estuarine organisms to access the created marsh. This
project is part of five cycles over a 10-year period with each
cycle requiring individual construction approval.
The Sabine Refuge Marsh Creation Project is located in the
Sabine National Wildlife Refuge, west of LA Highway 27, in
large, open water areas north and northwest of Brown’s Lake
in Cameron Parish, Louisiana.
Priority Project List 8 funded $5.9 million to complete
construction of a permanent pipeline and one cycle of marsh
creation. Engineering analyses at the time indicated that the
construction of a temporary pipeline would be more cost
effective. Therefore, a temporary pipeline was utilized for
Cycle I. However, further analysis determined that a
permanent pipeline would be advantageous. In 2004,
additional funds for engineering and design and construction
were approved for Cycles II and III. Funds for Cycle II
include the construction of a permanent dredged material
Construction of the Cycle I site was completed on February
This project is on Priority Project List (PPL) 8.
The Sabine Refuge Marsh Creation Cycle I’s three sponsors include:
View more data on the CS-28-1 project or other projects on CWPPRA’s website.
On August 3, 2017, the Senate unanimously approved a resolution designating the week of September 16th through September 23rd as National Estuaries Week.
Over 100 million people nationwide live near estuaries and use these resources in their daily lives through agriculture, tourism, commercial fishing, power generation, and as shipping ports. Estuaries, where the river mouths meet the ocean, are where fresh and saltwater mix. One of the most expansive and productive estuaries in the world is located in the United States at the interface of the Mississippi River and the Gulf of Mexico. Along with providing jobs, estuaries have one of the highest productivity rates among ecosystems in the world. Estuaries serve as habitat for fish, waterfowl, and a variety of other wildlife by providing food and shelter during migration and mating season.
Estuaries are a well-known hotspot for recreational fishing. Take part in celebrating National Estuaries Week by reeling in a big catch while helping to keep your estuary areas clean of trash and healthy for the wildlife and vegetation. Visit our friends over at the Barataria-Terrebonne National Estuary Program for a list of activities and ways you can participate in National Estuaries Week.
Dredging of access and flotation canals for the construction
of I-10 and the Illinois Central Railroad resulted in increased
salinity and altered hydrology in the area that exacerbated
the conversion of wetland vegetation into shallow open
The project’s primary goal is to restore marsh that has been
converted to open water. Project implementation will result
in an increase of wildlife and fisheries habitat, acreage and
diversity, along with improving water quality. In addition,
the project will provide a storm buffer protection to I-10, the
region’s primary westward hurricane evacuation route, and
complement hurricane protection measures in the area.
Project features consist of the creation of 729 acres of marsh
and the nourishment of 202 acres of existing marsh using
dedicated dredging from Lake Pontchartrain. In addition,
10,000 linear feet of tidal creeks will be created. The marsh
creation area will have a target elevation the same as average
healthy marsh for this region. Plans are to place the dredge
material in the target area with the use of low level, noncontinuous
retention dikes along the edge of the project area
allowing overtopping of material to nourish the marsh fringe.
Vegetative plantings will be utilized in the areas deemed
most critical by the project team. Successful wetland
restoration in the immediate area (PO-17) clearly
demonstrates the suitability and stability of soil and material
availability from a sustainable borrow area.
The project features are located between Lake Pontchartrain
and I-10 in St. Charles Parish, Louisiana. It is bounded on
the west by the Fall Canal and the Bayou LaBranche
Wetland Creation Project (PO-17) and the east by a pipeline
This project is on Project Priority List (PPL) 19.
The LaBranche East Marsh Creation project sponsors include:
Keep up with this project and other CWPPRA projects on the project page.
If you enjoy recreational fishing, eating fish, or just the beauty of fish, keep reading to find out more about how wetlands impact the survival of fish populations.
When wetlands are degraded or destroyed, it becomes a challenge for fish populations to survive and grow. Wetlands support fish survival through functions like food production, spawning and nursery habitat, protection from predators, and the reduction of water pollutants, to name a few. Wetland vegetation and dead plant material are constantly utilized by fish as a food source, refuge, natural filtration device, and a barrier to changing weather conditions.
The loss of wetlands leads to reduced fish populations which affect the natural ecosystem, as well as commercial and recreational fishing. Food webs have a delicate balance, and with wetlands dissipating, you can expect a shift in fish and wildlife populations and human consumption. While fish rely on wetlands for food, humans depend on wetlands for food, too. Crawfish, shrimp, oysters, alligator, and fish are some of the tastiest wetland delicacies that humans enjoy eating.
Are you curious as to which fish you can find in wetlands? Well, that depends entirely on the wetland type, geographic location, and its salinity. Common fish found in the Gulf Coast region are: shrimp because of the amount of wetland acres and amount of edge between wetlands and open waters; blue crab, which depend on the seagrass beds for food and refuge; and striped bass, which are a popular recreation fish. You can also find many other fish and crustaceans in Louisiana’s wetlands.
What we typically refer to as the Louisiana iris actually consists of five species native to Louisiana and surrounding regions in the Southeastern United States. Iris brevicaulis, Iris fulva, Iris giganticaerulea, Iris hexagona and Iris nelsonii are known as the Louisiana irises. These five species participate in interbreeding which results in the variety of irises we grow today.
It is suggested to plant Louisiana iris between the months of August and September when they are dormant for optimal results. However, if you prefer to pick out the colors and types of flowers, it is best to wait until the flowers are in bloom to be sure of what you are planting. Garden cultivation and hybridizing have caused Louisiana iris to bloom in shades of blue, red, yellow, pink, brown, white, purple, and more. The wide range of colors and native quality make it an attractive addition to aquatic gardens and ordinary flower beds. Louisiana irises will grow best with as much direct sunlight as possible.
Within their native habitats, irises often grow along freshwater bayous and sloughs. This wetland vegetation has little tolerance for salt water. The Louisiana iris is at risk due to dredging through wetlands leading to saltwater intrusion. CWPPRA hydrologic restoration and freshwater diversion projects help regulate salinity and restore the natural hydrology of wetlands, ultimately preserving the iris as well as other native plants and animals. Learn more about how to #ProtectOurCoast and its native species at lacoast.gov.