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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.
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 Morganza Floodway, between the Mississippi and the Atchafalaya Basin nearby downstream, is normally closed. It can be opened in an emergency to relieve water levels and water-pressure stress on various levees and other flood-control structures, including the Old River Control Structure.
(The Center Square) – After a historic winter storm hit the Interstate 10 corridor on Tuesday, parts of the vital east-west artery remain closed due to icy road conditions in both Louisiana and ...
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 ...
A Flood Watch is in effect for the Bay Area and Central Coast until 4 a.m. local time Wednesday, according to the NWS office in San Francisco, as excessive runoff may result in flooding of rivers ...
The floods have also caused the death of another person from the UK. The unnamed 71-year-old man died hours after being rescued from his home on the outskirts of Malaga after heavy rain and ...
Two egrets on the limbs of a cypress in the Atchafalaya flood basin. The Atchafalaya River meanders south as a channel of the Mississippi, through extensive levees and floodways, past Morgan City, and empties into the Gulf in Atchafalaya Bay approximately 15 miles (24 km) south of Morgan City. Since the late 20th century, the river has been ...