Tag Archives: deadlist flood

The Deadliest US Floods

Worst US Floods
The Deadliest US Floods By Death Toll
The disasters listed here exclude hurricane-caused flooding. See the list of deadliest US hurricanes for these.

1.
Johnstown, PA
May 31, 1889
Death Toll: 2,200

Several days of extremely heavy rainfall, brought about the collapse of the South Fork Dam, which was 14 miles upstream of Johnstown, PA. It was the first major disaster relief effort handled by the new American Red Cross, led by Clara Barton. Support for victims came from all over the United States and 18 foreign countries. It remains one of the greatest disasters in U.S. history.

The Johnstown Flood also became a social cause celebre, because the dam that collapsed had been built to create a lake for vacationing millionaires, such as Andrew Carnegie and Andrew Mellon, while the inhabitants of the town were Welsh and German immigrants.

2.
Mississippi Valley
January and February 1937
Death Toll: 1,100

Heavy rains flooded 12,700 square miles, destroying 75,000 homes, and leaving 600,000 refugees.

3.
Ohio River
March, 1913
Death Toll: 700

Heavy rains brought severe flooding. The disaster led to the nation’s first flood control board and programs.

4.
Santa Paula, CA
March 12, 1928
Death Toll: 450

Collapse of the St. Francis Dam

5.
Rapid City, SD
June 9 – 10, 1972
Death Toll: 237
Flash flood

6.
Kansas City, Missouri
May 16 – June 1, 1903
Death Toll: 200

Heavy rains brought flooding that raised the level of the Missouri River 35 feet.

7.
Mississippi Valley
April – May 1912
Death Toll: 200

The Mississippi River overflows its banks.

8.
Willow Creek, OR
1903
Death Toll: 200
Flash flood sweeps away a third of the town.

9.
Man, WV
Feb. 26, 1972
Death Toll: 118
Slag pile dam collapses under torrential rains.

10.
Loveland, CO
August 1, 1976
Death Toll: 139
Flash flood in Big Thompson Canyon

Originally posted 2015-01-05 02:22:22.

The World’s Worst Floods By Death Toll

The World’s Worst Floods
The Deadliest Floods As Measured By Death Toll
The World’s Worst Floods
The Deadliest Floods As Measured By Death Toll

Throughout history, floods have proven to be the deadliest natural disasters. This is mainly due to the high population densities around rivers. When well-behaved, rivers provide the resources needed for agriculture, transportation, and industry. It is no accident that all of the ancient civilizations rose around rivers.

It also should be noted that not all of the dead were the victims of the initial floodwaters. Disease and famine that followed the disasters probably killed more than the floodwaters themselves.

Flooding disasters primarily as a result of typhoons or hurricanes have been excluded from this list and are instead included on the list of worst hurricane disasters.

1.
Huang He (Yellow) River, China
1931
Death Toll: 1,000,000 to 3,700,000

The Huang He River is prone to flooding because of the broad expanse of plain that lies around it. One of the major reasons for the flooding is the high silt content that gives the river its yellow tint (and thus its name). The silt—which constitutes as much as 60% of its volume—builds up until the river actually is higher than the surrounding land. The tendency to flood is exacerbated by ice dams which block the river in Mongolia; the dams back up the water, and then release devastating walls of water when they break.

The history of flooding has prompted the Communist Chinese government to embark on a program of building dams for flood control. The dams, however, have not proven entirely effective and have been the target of criticism from environmentalists.

2.
Huang He (Yellow) River, China
1887
Death Toll: 900,000 to 2,000,000

3.
Huang He (Yellow) River, China
1938
Death Toll: 500,000 – 900,000

The 1938 flood of the Huang He was caused by Nationalist Chinese troops under Chiang Kai-Shek when they broke the levees in an attempt to turn back advancing Japanese troops. The strategy was partly successful. By 1940, the Japanese were essentially in a stalemate with Chinese forces.

4.
Huang He (Yellow) River, China
1642
Death Toll: 300,000

Chinese rebels destroy the dikes along the city of Kaifeng, flooding the surrounding countryside.

5.
Ru River, Banqiao Dam, China
1975
Death Toll: 230,000

This flood was caused by the collapse of the Banquia Dam, along with several others, following a heavy rain caused by a typhoon. It is the worst dam related collapse in history.

6.
Yangtze River, China
1931
Death Toll: 145,000

Although the Huang He has caused more deaths, the Yangtze has had more than 1,000 recorded floods.

7.
The Netherlands and England
1099
Death Toll: 100,000

A combination of high tides and storms flooded the Thames and the Netherlands, killing 100,000.

8.
The Netherlands
1287
Death Toll: 50,000

A seawall on the Zuider Zee failed, flooding the low-lying polder.

9.
The Neva River, Russia
1824
Death Toll: 10,000

An ice dam clogged the Neva, flooding nearby cities.

10.
The Netherlands
1421
Death Toll: 10,000

The failure of a seawall on the Zuider Zee flooded the Dutch lowlands.

Originally posted 2015-01-05 02:20:22.