The 8 Most Dangerous Floods in U.S. History

United States flash floods kill over one hundred and forty innocent citizens every year. To gain perspective on this statistic, understand that the U.S. flash flood death count is higher than those of large hail storms, straight line wind storms, and tornadoes combined. Not only do these treacherous floods kill by the hundreds, they also cause billions of dollars in damages. National Geographic reported that flash floods have caused a total of three trillion dollars worth of damage worldwide.

Flash floods can occur minutes or hours after a large rainfall has taken place. Although these downpours only last for a short amount of time, they create major chaos. Regions containing large rivers are most susceptible to hazardous flash flooding. However, any area experiencing rainfall is at risk. American has experienced devastatingly dangerous flash floods. Below is a list of the top 8 most dangerous floods in United States History.

8) 1993 Mississippi River Flood

1993 Mississippi River Flood

The 1993 Mississippi River flood is the second costliest flood in U.S. history causing fifteen billion dollars worth of damages. The flood took fifty lives. While the flood water remained in the St. Louis area for a sequence of 81 days after the storm.

7) 1976 Big Thompson Canyon Flood

1976 Big Thompson Canyon Flood

On July 31st, 1976, the Big Thompson Canyon Flood cost Colorado thirty five million dollars in damages. The mountainous region is unfortunately perfect for poignant flash floods. The Big Thompson Canyon flood killed one hundred and forty four people.

6) 1972 Rapid City Flood

Imagine waking up in the dead of night from your slumber only to find yourself caught in the middle of a flash flood. Sadly, that is exactly what happened to the South Dakotans living in the Rapid City area in 1972. This nocturnal flash flood not only cost one hundred and sixty five million in damages, it also took the lives of two hundred and thirty eight citizens unknowingly.

5) 1969 Hurricane Camille Flooding

1969 Hurricane Camille Flooding

As a result of the category five, Hurricane Camille, the east experienced several flash floods from the gulf of Mexico to the Appalachian mountains. Two hundred and fifty nine people were left dead and almost two billion dollars worth of damages were caused.

4) 1927 The Mississippi River Flood

1927 The Mississippi River Flood

The 1927 Mississippi River flood reached across the seven states of Missouri, Illinois, Tennessee, Kentucky, Mississippi, Arkansas, and Louisiana totaling fifteen million acres. As one of the most hazardous floods in U.S. history, the flood took five hundred lives and left more than six hundred thousand people homeless.

3) 2005 Hurricane Katrina Flooding

2005 Hurricane Katrina Flooding

As America’s most expensive catastrophe, the hurricane as well as the flooding caused by Katrina cost the United States eighty one billion dollars in damages. Eighty percent of New Orleans was submerged by water and over one thousand eight hundred people were killed. Sadly, the city still feels the aftermath and devastation of Hurricane Katrina as they are continuously rebuilding and restoring from the damages the storm has caused.

2) 1889 Johnstown Flood

An extremely treacherous way to cause a flash flood is through a failing dam. As the South Fork Dam failed in Johnstown, Pennsylvania during May of 1889 over twenty million tons of water was released into the city leaving two thousand two hundred people dead.

1) 1900 Galveston Flood

Galveston Storm 1900

As the Galveston Hurricane torn its way through Texas, it left a major flash flood in its path. On September 8th, 1900, more than eight thousand people were killed and the once flourishing city of Galveston was left crippled.