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The Atchafalaya River

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The formation of the Atchafalaya River is nothing short of remarkable. Alongside the regulatory systems, the Atchafalaya is responsible for the delicate water balance of the Atchafalaya and the Mississippi River. The Atchafalaya River is one of the largest tributaries to the Southern Louisiana swamps and bayous. The formation of the Atchafalaya River takes place over a millennia. Over a thousand years ago, the Atchafalaya River didn't even exist. It was only the Red River that ran parallel to the Mississippi River. Over the next 500 years, the Mississippi River would change course and create a small westward turn. Overtime this small turn would grow into a large turn be named Turnbull’s Bend. Turnbull’s bend eventually intersected the Red …show more content…

The outflow channel was dig between the two rivers in the path of the former Upper Old River. The overbank structure did just what it sounds like. It’s a large dam the spans over the land. It has large levees on each side to keep the river separate but in the event that the Mississippi River was out of its banks they could open the overbank structure and continue to allow water to the Atchafalaya River as well as relieve the stress on the Mississippi River. This potentially saved the Mississippi River from breaching its banks and flooding the city of New Orleans. In 1973 a massive flood plagued the area and sent the Mississippi river over its banks. The overbank structure opened and began letting massive amounts of water flow into the Atchafalaya. The flood of 1973 nearly caused the downfall of the Old River Control Structure. During the flood a large hole opened up causing the Low Sill Dam to partially collapse. The Army Corps was able to dump large amounts of rock behind the dam in order to prevent a complete failure. Had the dam failed the Mississippi river would have changed course causing thousands of miles of southern Louisiana swampland to become completely flooded. Following the flood of 1973 the U.S. Army Corps were able to repair the dam and restore original flow rates. In order to prevent failure in the case of a future flood that began renovations and additions to the …show more content…

The nose of the Louisiana black bear is longer, narrower and flatter than its relative, the American Black Bear. The Louisiana black bear also has large molar teeth. The Louisiana black bear is one of sixteen subspecies of the American black bear. It is also the state mammal of Louisiana. It was chosen due to its significance in the state wildlife. It is truly a magnificent creature. Male Louisiana black bears weigh between two hundred fifty and four hundred pounds. They also grow up to six feet in length. Females are much smaller. The bears live mainly off of berries and acorns and are not predators but will defend themselves in the presence of

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