Soap Creek Watershed Site 90-79b is a local government-owned structure in Wapello, Iowa, designed by USDA NRCS to address flood risk reduction in the area.
Wind
Humidity
Completed in 2007, this earth dam stands at a height of 38 feet and spans 535 feet in length, with a storage capacity of 484 acre-feet. Situated along Tr-Brush Creek, the dam serves to protect the surrounding area from potential inundation during periods of high discharge, with a low hazard potential and a moderate risk assessment rating.
Managed by the Iowa Department of Natural Resources, Soap Creek Watershed Site 90-79b is subject to state regulations, permitting, inspection, and enforcement, ensuring its structural integrity and continued functionality. Despite not being rated for condition assessment, the dam is deemed to meet safety guidelines, although emergency preparedness measures such as an Emergency Action Plan (EAP) and inundation maps are yet to be formulated. With a controlled spillway width of 30 feet and a drainage area of 1.38 square miles, this site plays a crucial role in safeguarding the local community from potential flooding events, highlighting the importance of water resource management in the face of climate change challenges.
Year Completed |
2007 |
Dam Length |
535 |
Dam Height |
38 |
River Or Stream |
Tr-Brush Creek |
Primary Dam Type |
Earth |
Surface Area |
18 |
Drainage Area |
1.38 |
Nid Storage |
484 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
Des Moines River At Ottumwa
|
1090cfs |
Fox River At Bloomfield
|
7cfs |
Chariton River Near Rathbun
|
15cfs |
Chariton River Near Moulton
|
34cfs |
Cedar Creek Near Bussey
|
11cfs |
Des Moines River Near Tracy
|
1400cfs |
| Location | Reservations | Toilets |
|---|---|---|
Lake Wapello State Park Campground
|
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Lake Wapello State Park
|
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Drakesville City Park
|
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Lake Fisher
|