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The Old River Control Structure, between the present Mississippi River channel and the Atchafalaya Basin, sits at the normal water elevation and is ordinarily used to divert 30% of the Mississippi flow to the Atchafalaya River. There is a steep drop here away from the Mississippi's main channel into the Atchafalaya Basin.
The Mississippi River System, also referred to as the Western Rivers, is a mostly riverine network of the United States which includes the Mississippi River and connecting waterways. The Mississippi River is the largest drainage basin in the United States. [3] In the United States, the Mississippi drains about 41% of the country's rivers. [4]
The Mississippi River Delta, showing the sediment plumes from the Mississippi and Atchafalaya Rivers, 2001. The modern Mississippi River Delta formed over the last approximately 4,500 years as the Mississippi River deposited sand, clay and silt along its banks and in adjacent basins.
The U.S. Army Corps of Engineers measured the amount of water flowing through the Mississippi River and compared it to the amount entering the Atchafalaya Basin by monitoring "latitude flow" at the latitude of the Red River Landing, located five miles (8.0 km) downstream of Old River. In this case, latitude flow is a combination of the flows of ...
Bayou Teche was the Mississippi River's main course when it developed a delta about 2,800 to 4,500 years ago. Through a natural process known as deltaic switching , the river's deposits of silt and sediment cause the Mississippi to change its course every thousand years or so.
The shifting river delta at the mouth of the Mississippi on the Gulf Coast lies some 300 miles south of this area in Louisiana, and is referred to as the Mississippi River Delta. Rather, the Mississippi Delta is part of an alluvial plain, created by regular flooding of the Mississippi and Yazoo rivers over thousands of years. The climate is ...
Madeline Heim is a Report for America corps reporter who writes about environmental issues in the Mississippi River watershed and across Wisconsin. Contact her at 920-996-7266 or mheim@gannett.com .
2 Map of Mississippi River Basin. ... River flow at Discharge Mouth coordinates Mouth location Source coordinates ... MS: Yellow River: