Flooding causes more damage in the United States than any other weather related event and flash floods are the most deadly natural disaster. Average annual flood damage is around $7.8 billion with an average of 94 deaths. The June 1972 flash flood in Rapid City caused 238 deaths and $165 million in damage. How do other notable flash floods compare to the Rapid City Flash Flood?
| Date | Location | Cause | Damage (at time of flood) |
Damage (2012 Value) |
Deaths |
| 06/10/1972 | Rapid City, SD | Flash Flood | $165 million | $906 million | 238 |
| 05/31/1889 | Johnstown, PA | Dam Break | $17 million | $425 million | 2,200 |
| 02/26/1972 | Buffalo Creek, WV | Dam Break | $100 million | $550 million | 125 |
| 07/31/1976 | Big Thompson Canyon, CO | Flash Flood | $40 million | $160 million | 145 |
| 08/01/1985 | Cheyenne, WY | Flash Flood | $61 million | $130 million | 12 |
| 06/14/1990 | Shadyside, OH | Flash Flood | $8 million | $14 million | 26 |
| 07/28/1997 | Fort Collins, CO | Flash Flood | $190 million | $270 million | 5 |
| 08/27/2002 | Kaycee, WY | Flash Flood | $459 million | $585 million | 0 |
| 08/17/2007 | Hermosa, SD | Flash Flood | $3 million | $3.3 million | 0 |