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
Giving full credit to restricting the Mississippi River as the culprit for loss of wetlands is not accurate. The booming oil and gas exploration of the 1970’s and 1980’s merits a name on the marquee as well. The pipelines and canals used to transport the resources to the outside world placed a great deal of stress on the fragile wetlands. Erosion from the barges in and out of the marshes as well as the salt water allowed into the fresh water, providing a precarious habitat for fresh water species – flora and fauna alike. Plants provide root systems to hold soil in place. Fish and fowl provide an economy for the area. Enter
Today the Chattahoochee River is used as a water source more than a source for transportation. It supplies water to the regional economies of Georgia, Alabama, and Florida.
The characteristic warming climate of the Late Pleistocene and Early Holocene resulted in rising sea levels which contributed to the formation of the various deltas in the New Orleans area (Dunbar, Britsch, 2008). The natural formation of these deltas produced coastal wetlands that represent 30% of coastal wetlands currently in the United States (Cigler, 2007). In addition to these wetlands, the Mississippi River was surrounded by substantial forest growth (Pabis, 1998).
One of the largest geographic physical structures in the United States is the Colorado River. Human activity and its interaction with this great river have an interesting history. The resources provided by the river have been used by humans, and caused conflict for human populations as well. One of these conflicts is water distribution, and the effects drought conditions have played in this distribution throughout the southwestern region. Major cities such as Las Vegas, Los Angeles, San Diego, and other communities in the southwest depend on the river. It provides water for over 20 million people, irrigation for 2 million acres of land, four thousand megawatts of hydroelectric energy, and over twenty million annual visitors for
The Mississippi River is one of the world’s major river systems not only in size, but in habitat diversity as well. It is the third longest river in North America. It flows 2,350 miles from its source at Lake Itasca through the center of the United States to the Gulf of Mexico.
The Old River flows from the Mississippi to the Atchafalaya River. To regulate this flow, the Old River is dammed by the Old River Control Structure, which is an effort by the Army Corps to keep the Mississippi River from giving most of its water to the Atchafalaya River. If that were to occur, Morgan City (a town of 12,000 that sits on the banks of the Atchafalaya River) would be underwater and New Orleans would lose its most vital asset in the Mississippi River. To New Orleans, the Mississippi River means financial success, as New Orleans is a transportation hub. Baton Rouge, the state capital of Louisiana, also sits on the banks of the Mississippi River. Baton Rouge originally had an economy based on natural gas, to which the river was vital in a transportation aspect. Now, the state capital has an economy with many different sectors. Marucci Sports, best known for making baseball bats, calls Baton Rouge home. The Atchafalaya River would struggle to support economies that require transportation like the Mississippi River, as it doesn’t run the length of the United States. The Atchafalaya River is 137 miles long, compared to the Mississippi’s 2,320 miles, running from where the Red River and Old River meet all the way to the Atchafalaya Bay. The Atchafalaya Bay is connected directly to the Gulf of Mexico, which differs from the Mississippi River’s situation
The Atchafalaya Basin is the nation's largest river swamp, containing almost one million acres of America's most significant bottomland hardwoods, swamps, bayous, and backwater lakes.
Repeated events, highlighted by the flood of 1993 and the fallout of Katrina, continues to illustrate the US Army Corps of Engineers’ failure in strengthening flood control up and down the Mississippi, including the redesign and upgrading levees. America is a product of this constant struggle in dominating nature using science and reason.
New Orleans was originally founded on high ground overlooking the Mississippi River, above sea level. Also surrounded by Lake Pontchartrain and Lake Borgne, New Orleans was susceptible to hurricanes that would come up the coast into the Gulf. Originally New Orleans was naturally protected by “coastal swamps that helped absorb the energy of storm surges before they reached dry land.” (Stillman 228) At this point Americans were more concerned with the floods that happened annually from the Mississippi River. In the early days, settlers built a mile long levee to block overflows from the mighty Mississippi while landowners constructed their own levees.
Today, Louisiana has made extraordinary rescues with species that were once considered threatened or endangered. Due to safe planning and the Endangered Species Act, the U.S. Fish and Wildlife Service projected to remove the Louisiana Black Bear from the list of threatened species. In May 2015, approximately 350 black bears to 600 black bears existed in Northern Louisiana in which $900,000 was invested to restore its population. Severe habitat loss of the black bear is what initially led to the decline in the population. In 1992, the Louisiana Black Bear was placed on the list of endangered and threatened species and in May 2015, they were officially removed (Wildlife Division - Texas Parks and Wildlife Department,
Louisiana has many wetlands, rivers, lakes, and coastal plains. One river that stretches over a great part of Louisiana is the Mississippi River. Lake Pontchartrain is the
In 1923-1947 Arkansas Power and Light (AP&L) constructed several dams on two Arkansas lakes, Hamilton and Catherine. AP & L obtained “flood easements” on property adjoining the lakes. AP&L sold lake side property and kept the easement in force. These flood easements permitted AP&L to “clear of trees, brush, and other obstruction and to submerge by
The Mississippi River influences the states of Louisiana in numerous ways. The river can be both beneficial and harmful to the state. It may help with industries, but at the same time it may be harming by taking away from Louisiana’s coastline. While erosion is widely considered to be a destructive occurrence, it does have some necessary features. For example, erosion provides many nutrients for animals living in the water, and it creates new deltas that many animals live in. Since the beginning of Louisiana, the Mississippi River has been a crucial factor in the creation and the development of Louisiana’s economy. It has helped with things like trade and the growth of crops. The Mississippi is also significant in the way Louisiana is shaped
During the year 2000, the state legislature of Louisiana accepted the “Master Plan for the Atchafalaya Basin Program” and $85 million. This money was to be used over 15 years for water management, recreation projects, etc. In 2004, the Atchafalaya Welcome Center in Butte La Rose officially opened to the public. In 2008, the Atchafalaya Basin Conservation Fund was established. This also authorized the Secretary of the Department of Natural Resources to submit an annual plan for the
The black bear is the smallest North American bear. The adults are usually less than six feet long and stand about two to three feet tall at shoulders. The weight of a black bear varies between 125-500 ponds. They have small eyes and rounded ears. Also their snout is very long. Each paw has five very strong claws, which is used for tearing, digging, and climbing. One single hit from the front paw is enough to kill an adult deer. A black