Table of Contents
What year was the flood in Duluth mn?
2012
On June 19 and 20, 2012, the City incurred significant flood damage to its infrastructure due to an unprecedented rain event. The City has been awarded grants from various sources to repair flood damaged roads, bridges, facilities, parks, and streams.
Does Minnesota have flooding?
Minnesota Governor Tim Pawlenty declared a State of Emergency in six Minnesota counties. This flash flood caused 7 fatalities and $179 million in damage in Minnesota alone. Across the Midwest as a whole, 14 people were killed and the estimated damage cost was $549 million across 6 states.
Does Duluth MN flood?
The floodwaters submerged two-thirds of the Lake Superior Zoo, drowning 11 animals.
What is the magnitude of floods?
The Flood Magnitude value is a measure of “how severe” a flood is, as a strictly hydrological occurrence (no assessment of damage is implied). “0” is the smallest reported value (discharge is below the 1.5 y recurrence interval discharge; no flooding). “10” is the largest, this is the flood of record (1998- present).
Why is the Red River Red?
After it was explored in 1732–33 by the French voyageur Pierre Gaultier de Varennes et de La Vérendrye, the river, called Red because of the reddish brown silt it carries, served as a transportation link between Lake Winnipeg and the Mississippi River system.
What does a 500-year storm mean?
The “500-year flood” corresponds to an AEP of 0.2-percent, which means a flood of that size or greater has a 0.2-percent chance (or 1 in 500 chance) of occurring in a given year.
What is a 100 year storm?
The term “100-year flood” is used in an attempt to simplify the definition of a flood that statistically has a 1-percent chance of occurring in any given year. Likewise, the term “100-year storm” is used to define a rainfall event that statistically has this same 1-percent chance of occurring.
Are there Grizzlies in Minnesota?
No, not any more, although grizzly bears may have lived within 50 miles of Ely 5,000 to 8,000 years ago. At that time, much of Minnesota was prairie. Grizzly bear skulls have been found as far east as Ontario and Labrador.
Which is worse 100-year flood or 500-year flood?
500-year Floodplain, area of minimal flood hazard. 100-year Floodplain, areas with a 1% annual chance of flooding. Because detailed analyses are not performed for such areas; no depths or base flood elevations are shown within these zones.
What is a 10 year flood?
The magnitude of the 10-year flood has been determined through statistical analysis to be approximately 31,100 cubic feet per second (ft3/s). You can see from the graph that the actual interval between floods greater than this magnitude ranged from 4 to 28 years, but the average of these intervals is about 10 years.
What caused the flooding in Duluth MN?
The steep terrain, and numerous creeks and rivers, played a significant role in the devastating damage and flooding that occurred in the Duluth community. The Fond Du Lac and West Spirit Mountain neighborhoods of Duluth and Thomson Township in Carlton County were evacuated.
Are there flood maps available in unmapped counties?
There are no flood maps available in unmapped counties. See the “ Is My House in the Floodplain” video to learn how to verify and document there is no FEMA map.
Where were the roads washed out in Duluth MN?
Numerous roads were washed out from the deluge of rain from Carlton County through the Duluth metro area and into Douglas County and Bayfield County in Wisconsin. A state of emergency was declared in Duluth, Hermantown, Cloquet, Barnum, Moose Lake and Superior, WI.