Flooding in Mississippi
In the summer of 1993 the United States were faced with the most devastating flood that has ever occurred. Seventeen thousand square miles of land were covered by floodwaters in a region covering all or parts of nine states (North and South Dakota, Nebraska, Kansas, Missouri, Iowa, Wisconsin, Minnesota and Illinois). All large Midwestern streams flooded including the Mississippi, Missouri, and Kansas, Illinois, Des Moines and Wisconsin rivers. The Mississippi river was above flood stage for 144 days between April and September and approximately 3 billion cubic meters of water overflowed from the river channel onto the floodplain downstream from St. Louis.
There were 4 principal reasons why flooding was
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Some of the environmental damage the flood contributed to include: a lower oxygen concentration (below 2mg/L) was elevated and more widespread than usual along the Louisiana coastline west of the delta. This can be attributed to two main causes. First, the high river discharge introduced abnormal amounts of nutrients during the summer months, fueling plankton growth. Second, solar heating, resulting in a very stable water mass on the continental shelf, rapidly warmed the widespread low-salinity plume of river water.
The increased plankton biomass and the highly stratified water mass spoiled hypoxic conditions, which covered approximately, double the area that would be expected in the summer. The effects of hypoxic conditions on the productive Louisiana fishery had a highly negative impact, as did it on the benthic community west of the delta. The flooding submerged eight million acres of farmland. Production of corn and soybeans were down 5- 9% as a result and corn prices rose by 0.15% per bushel. Floods deposited thick layers of sand in some fields. The U.S. Soil Conservation Service spent $25 million to buy flood-prone farmlands for conversion to natural conditions (e.g. wetlands). Conversion of natural lands to farmlands has resulted in greater run-off and exaggerated the effects of flooding.
The greatest economic losses occurred in cities on the floodplain. Des Moines, Iowa, located in the center of the flood region, became the
To put the tale into proper prospective, the Mississippi Basin Flood of 1993 carried 435,000 cubic feet of water per second past Iowa and one million cubic feet per second past St. Louis after the contribution from the Missouri River. The Great Flood
Easy navigation and flood control encouraged trade along the river, which boosted the economy and led to an increase in jobs for traders, deckhands, etc. (US History TVA). In addition to providing increased trade opportunities, large amounts of money that would have been spent on the flood damage that were saved by the construction of these dams. A few years into the program, stations were created in the area to monitor flooding. Reports from these stations, in addition to computer calculations, show that the total cost of the flood damage up until 2007 would have been $5.8 billion (TVA River Neighbors). The flooding would have destroyed not only people’s homes, but also their businesses and livelihoods., which would have led to further unemployment.
Flooding of the settlement was problematic. By 1812, the settlers had built miles of levees on the banks of the river. For the next two hundred years, the surrounding wetlands were drained to eliminate swamps filled with yellow fever carrying mosquitoes and to encourage economic development. Draining water from peaty soils encouraged subsidence. The land which was just inches above sea level to begin with steadily sank. In combat of this, higher and stronger levees were built, tightening the straight jacket already placed upon the Mississippi River. The massive flooding of 1928 brought further flood control systems implemented by the Army Corps of Engineers with Congressional blessing. By the 1950’s, dramatic rates of land loss in Louisiana’s coastal zone stretched across 300 miles from Texas to Mississippi and inland 50 miles. (Tibbetts)
In the late summer of 2005, a terrible tragedy occurred that changed the lives of many in the south-east region of the United States. A Category 3, named storm, named Hurricane Katrina, hit the Gulf Coast on the 29th of August and led to the death of 1,836 and millions of dollars’ worth of damage (Waple 2005). The majority of the damage occurred in New Orleans, Louisiana. Waple writes in her article that winds “gusted over 100 mph in New Orleans, just west of the eye” (Waple 2005). Not only was the majority of the damage due to the direct catastrophes of the storm but also city’s levees could no longer hold thus breaking and releasing great masses of water. Approximately, 80% of the city was submerged at sea level. Despite the vast amount
As I was reading as The Great Molasses Flood of 1919, I was shocked!The closest relation that I could possibly think of that I have seen is the rainfall flood of 2008 in Saline County, Illinois. I remember going outside and wading in water, it was almost impossible to drive and buildings were flooded majorly. “Excess of 12 inches above normal.” (Flood of 2008) When I walked outside, I could not believe my eyes! I didn’t even think it was possible for Carrier Mills to get as much rain as it had
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.
In addition, farmland has been destroyed because of the floods and the decrease in delta sediment. The dam has reduced downstream nutrients and sediment flow. And has seriously impacted neighboring river and seacoast ecosystems.
The tragedy began when people had started traveling across the United States looking for exceptional farming land. They found this “promise land” in the midwest with the extensive amount of grasslands throughout the area. After settling, farmers began grazing cattle and plowing the grassy areas in order to plant wheat. Cattle grazing and plowing spread throughout millions of more acres in the midwest. An innumerable amount of these areas were destroyed as a result of the overgrazing. When the grazing was decreased and the demand for wheat products rose, farmers begun to plow more instead. With the land mostly uncovered and tons of topsoil apparent, the tragedy commenced when a severe drought struck. The lack of rain caused the soil to dry up and, essentially, turn into dust.
The twentieth state of the United States had quite some history to go through, starting with what is its name, the natives that started and the slave trade that led to the unwanted war of America. Mississippi brought a lot nationalism which brought a lot of social inequality. This essay will lightly cover the background and history that Mississippi holds.
(Ref. 5) On May 29, 2015 which was Memorial Day the rain decided to pour. This left around 12 inches of rain in just hours. This flood caused a lot of damage to homes and buildings. Unfortunately, there was cases of people that did lose their lives. Air rescues had to be performed along with emergency evacuation due to severe flood for some people. It was almost at much severity as the tropical storm Allison that happen in
55). This is because things like a small flood would effect croplands differently than an urban center. A crop my actually benefit from silt deposits but the New York Stock Exchange would not. However, when disasters increase in scale they almost always have a significant impact on the economy (World Bank & United Nations, 2010, p. 55). Unfortunately, even though these impacts may be short-term there are third order effects on the economy. After Hurricane Katrina many areas were completely abandoned but many more were bought by developers pushing out the lower income populations, completely changing the local economy. This also highlights the different effect that disasters have on different demographics. As an example, the economies of developing countries are effected more by disasters then those of developed nations (World Bank & United Nations, 2010, p. 56). Although this may be because of population density or lack of infrastructure, it shows that demographics as well as the disaster itself have influence over the impact on local economy and
Another vital component of agriculture that drove the Mississippi Delta into poverty was the eleven major floods. Even though these floods were historical, they still hindered the agricultural development of the Mississippi Delta preventing the creation of more jobs. One of the worst floods that devastated the Delta was the flooding of the Mississippi River in 1927. The flood left roughly 16.6 million acres, about 162,000
Sediment collected from the riverbank as the river flows downstream is also a problem; it increases the turbidity of the river, and this makes it difficult for plants to receive the necessary sunlight needed for survival. When these plants die, there is less food for fish and other river animals. Bacteria levels also rise in the water, because it can cling to sediment very easily. When there is more sediment, there are more places for the bacteria to collect. (Helsel & Mueller, 2009). All of these problems are occurring as the water is flowing along the river banks, collecting even more sediment, and pollutants as it travels downstream and deposits into the Gulf of Mexico. When all of this sediment, nitrogen and bacteria flow into the Gulf of Mexico, it causes changes in the water there. The increase in the level of nitrogen causes plankton to grow faster. When the plankton decomposes it takes a large amount of oxygen out of the water. The bacteria break down the decomposed plankton, which releases carbon dioxide, taking increasing levels of oxygen out of the water in the Gulf. Eventually the level of oxygen decreases to a point where most living organisms cannot survive. Some animals flee while other plants and animals that cannot leave usually die. This is referred to as the Dead Zone in the Gulf of Mexico. (Gulf of Mexico; NOAA, 2009). With an expected increase in the size
One of the biggest hazards created by hurricane Katrina was the flooding it produced. Louisiana was hit the hardest, but both Alabama and Mississippi also had large areas left under water following the storm. The area that was seriously affected by Katrina was New Orleans.
Numerous different aspects were altered due to the ruckus of Hurricane Katrina. The first major aspect was housing and location. Katrina nearly demolished 300,000 homes. The ascending sea level along the coast resulting from onshore winds is a storm surge. With a twenty-two foot storm surge in New Orleans and a twenty-seven foot storm surge in Mississippi, Hurricane Katrina averaged a shocking twelve foot storm surge. As a storm surge’s footage increases, the surge will continue to move inland farther and farther. Hurricane Katrina’s storm surge is documented as moving inland a total of twelve miles into the state of Mississippi (FAQS, 2013). Hurricane Katrina impacted a total of seven states. Five of these states were Georgia, Florida, Alabama, Mississippi, and Louisiana. Kentucky and Ohio were two more states affected but in a different way. Because of the tremendous amount of water, Kentucky and Ohio were victims of the Mississippi River flooding. Some states experienced more extreme destruction than others. Alabama, Mississippi, and Louisiana experienced Hurricane Katrina’s wrath firsthand. These three southern states were affected the worst by the massive storm (FAQS, 2013). Mississippi’s forest industry experienced a great amount of destruction losing 1.3 million acres of valuable forest land. The main cause of destruction in New Orleans was blamed on the failure of the levee system to stand its ground