Flooding Damages and Proper Ways to Control It
Professionals and laymen agree that a flood is a body of water covering land dry under normal circumstances. Floods constitute regular natural calamities. They interfere with lives of millions of people across the globe. Identified negative effects include; they destroy premises, influence soil erosion and contaminate water for drinking. Floods result from many causes among them overflowing lakes, rivers as well as seas. Human life shares history with floods. Civilization resulted from human being occupying riverbanks and bays. The reason was simple as human life needs water.
However, it is not always that floods remain destructive in nature. Nutrients deposited by floods every year around River Nile in Egypt by the river made the entire region fertile. This was before the floods along the said river were contained by the construction of Aswan High Dam. Although human life suffers much, floods deposit fertile soil in Bangladesh during the monsoon season. This is despite the fact that the floods kill so many people.
Floods always hit land next to rivers and water masses at yearly. Rains result in more water for rivers to carry. When snow in mountains melts, it is another likely cause for flooding. Flash floods are caused by thunderstorms in many ways. When they occur, small rivers are forced to carry water ten times their capacity. Silt, sand and water are carried by slow moving rivers. They erect beds in the process. Beds raise rivers above their normal level even in comparison to the land that hosts them. You find such rivers in Chicago.
The rate at which rivers in Phoenix AZ erects develops floods is slow but results devastating. More land stands affected. Coastal lands in Fort Myers are not an exceptional to floods. Floor tsunamis that result from earthquakes on the ocean lead to more than 15-meter high waves. With this height, flooding spreads to miles away. A tsunami in the Indian claimed more than 250,000 people. Thailand, Sri Lanka and Indonesia are some of the countries that felt the effects.
Cyclones, hurricanes as well as tropical storms are other causes of destructive floods. Both Chicago and the Mississippi suffered hugely from Hurricane Katrina. The floods did not spare Fort Myers and Phoenix AZ. Participating agencies did well to evacuate people as damages and ravages would have been more. Low-lying areas and countries are in a permanent danger of flooding. These areas are common in the Netherlands. Similarly, life in Haiti came to a standstill as almost the entire country was wiped by floods.
What people do in many ways contributes to floods. Trees and other plants are helpful in absorbing excess water. Water flows through bare land following deforestation. Mudslides result from the same. Excessive pressure on dams by water leads to cracks in the concrete wall. In fact; total breakage is the final result. Safety and protection measures are nowadays taken to prevent the destructive nature of floods. The Netherlands for instance, has constructed dams and dykes to safeguard the land along the coast.