Location
Mississippi River is located in North America. It runs from the northern United States through Wisconsin, Minnesota, Iowa, Illinois and Missouri, before finally entering the Gulf of Mexico near New Orleans. Geographic surveys claim Mississippi River as the second-longest river in the United States, after the Missouri River. A long stretch of the Mississippi River lies near St. Louis, the city located in the eastern-central state of Missouri.
Depth
The depth of the Mississippi River near St. Louis varies dramatically due to seasonal changes in precipitation and runoff. During the late-spring dry season, depths may remain at or below one meter. Yet, during wet seasons, the depth may reach several meters in areas where the channel is not protected by levees or other man-made structures. According to The United States Geological Survey (USGS), the average depth of the Mississippi River near St. Louis is around 8.7 to 8.9 meters and the normal discharge rate is estimated to be nearly 9000 m3/s.
The Threat of River Overflow
Heavy rainfalls, including those brought by cyclonic storms, cause the river to swell. This increases its depth exponentially, sometimes reaching up to 9m or more. As an added threat, river banks and levees are subject to erosion and can get destroyed due to excessive water pressure. Even though the Corps of Engineers have constructed numerous levees and other engineering structures to contain the water, an overflow of the river can still occur if the amount of rain is high enough.
Man-Made Effects
Other than rains, the depth of the river may be affected by man-made activities such as dredging and construction of dams. Besides, pollutants present in the water can reduce the water’s oxygen level and harm the aquatic life. Runoff from agricultural and urban areas, as well as industrial and municipal sewage, may also worsen the water quality.
Legacy of Mississippi
Mississippi River is rich in biodiversity and supports thousands of species of birds, mammals, reptiles, and fish. Native Americans have a deep cultural connection with the river and there is a range of activities that depends on its waters. This includes traditional navigation, fishing, recreation and transportation which are all integral to the local economy and cultural history.
Flood Protection Measures
Given the potential risk of flooding due to heavy rains, flooding is a major concern for the people living near the river. To protect against flood-related damages, the US Army Corps of Engineers have been constructing levees, dams, and floodwalls for decades. Emergency measures such as evacuations are also carried out in times of threat.
The Uniqueness of Mississippi River
The Mississippi River near St. Louis has long been an important part of the area. With a length of 670 miles, it is the most important river in the United States. Furthermore, it has a lot of scenic beauty and historical importance, making it an important tourist attraction near St. Louis.
Frequently Asked Questions
Q. How deep is the Mississippi River near St. Louis?
A. The average depth of the Mississippi River near St. Louis is around 8.7 to 8.9 meters. However, the depth can vary due to seasonal changes in precipitation.
Q. What is the water discharge rate of the Mississippi River near St. Louis?
A. The normal discharge rate of the Mississippi River near St. Louis is estimated to be nearly 9000 m3/s.
Q. What are the measures taken to protect against floods in the Mississippi River?
A. To protect against flood-related damages, the US Army Corps of Engineers have been constructing levees, dams, and floodwalls for decades. In addition, emergency measures such as evacuations are also carried out in times of threat.
Q. What is the overall significance of the Mississippi River near St. Louis?
A. The Mississippi River near St. Louis is an important part of the area due to its length, scenic beauty and historical importance. Besides, it serves as a waterway for transportation, recreation, and fishing and supports thousands of species of birds, mammals, reptiles, and fish. It is also integral to the local economy and culture.
