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The Atchafalaya Basin system comprises three floodways. Two of these, the West Atchafalaya Floodway and the Morganza Floodway, are at the northern end.Together with the Atchafalaya River, these floodways are designed to pass flood waters into the third component, the Lower Atchafalaya Basin Floodway, which is 833,000 acres (3,370 km 2) in size and is bounded on the north by U.S. Route 190, on ...
The Corps was directed to develop a plan for the Atchafalaya Basin which was completed in 1982 and became the "Atchafalaya Basin Floodway System Project" (ABFS). [3] In 1983, 10,232 acres (41.41 km 2) were purchased by the state for the creation of the Sherburne Wildlife Management Area. In 1985, Louisiana Public Law 99-88 was enacted to ...
In 1988 under the administration of Governor Foster the "Atchafalaya Basin Master Plan" was implemented that combined the 11,780-acre (4,770 ha) Sherburne Wildlife Management Area (WMA), the 15,220-acre (6,160 ha) Atchafalaya National Wildlife Refuge, and the 17,000-acre (6,900 ha) U.S. Army Corps of Engineers' Bayou Des Ourses (Bayou of the ...
The Atchafalaya Basin, or Atchafalaya Swamp (/ ə ˌ tʃ æ f ə ˈ l aɪ ə /; Louisiana French: Atchafalaya, [atʃafalaˈja]), is the largest wetland and swamp in the United States. Located in south central Louisiana , it is a combination of wetlands and river delta area where the Atchafalaya River and the Gulf of Mexico converge.
This diversion was deemed necessary to protect levees and prevent major flooding in Baton Rouge and New Orleans, with the tradeoff of exacerbating flooding in the Atchafalaya Basin, and will also reduce floodwater stress on the Old River Control Structure upstream. This was the first opening of the spillway since the 1973 flood. [7] [34] [35] [36]
This flooding, plus any additional water from a Morganza Spillway release, together determine the total extent of flooding throughout the Atchafalaya Basin during a major Mississippi River flood. At risk in the Atchafalaya Basin are Morgan City (population 13,500), various smaller populated places, many farms, thousands of oil and gas wells ...
The levees in place on either side of the Mississippi River have diverted much of the river flow from its natural tendency to flow into the Atchafalaya Basin. Large concrete structures prevent diversion into the Atchafalaya River, and flow from the Red River is also controlled. While this helps control flooding, it has also modified the region ...
Amends the Water Resources Development Act of 1986. to assess the water resources needs of watersheds (currently only river basins and regions) of the United States. to require cost-sharing agreements for environmental protection and restoration, navigation, storm damage or hurricane protection, shoreline erosion, or recreation projects under such Act (currently, only for flood control or ...
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