Completed in 1999, this earth dam on South Creek serves multiple purposes including flood risk reduction. With a height of 11 feet and a length of 900 feet, the dam has a storage capacity of 135 acre-feet and covers a drainage area of 16 square miles.
Managed by the Iowa Department of Natural Resources, this dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. While its spillway is uncontrolled, the dam poses a moderate risk level (3) according to the risk assessment. Despite lacking certain inspection and emergency preparedness details, the dam remains an important structure for water resource and climate enthusiasts to monitor in the region.
As part of the Rock Island District and with Congressman Steve King as the representative, Kossuth County Roadgrade Dam 16-100-30 plays a crucial role in mitigating flood risks and protecting the surrounding area. Its strategic location and design make it a significant asset for water resource management and climate adaptation efforts in Kossuth County, Iowa.
Wind
Humidity
Year Completed |
1999 |
Dam Length |
900 |
Dam Height |
11 |
River Or Stream |
SOUTH CREEK |
Primary Dam Type |
Earth |
Surface Area |
11 |
Drainage Area |
16 |
Nid Storage |
135 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
11 |
Des Moines River At Jackson
|
55cfs |
Watonwan River Near Garden City
|
82cfs |
Blue Earth River Near Rapidan
|
328cfs |
Le Sueur River Near Rapidan
|
179cfs |
Ocheyedan River Near Spencer
|
59cfs |
Minnesota River At Mankato
|
3720cfs |
| Location | Reservations | Toilets |
|---|---|---|
Burt Lake County Park
|
||
Iowa Lake Wildlife Area Campground
|
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Bright Lake County Park
|