Soap Creek Watershed Site 90-113 Reservoir Report
Last Updated: December 7, 2025
Soap Creek Watershed Site 90-113, located in Wapello, Iowa, is a vital component of flood risk reduction efforts in the area.
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Summary
This earth dam, designed by USDA NRCS and completed in 2003, serves to mitigate potential flooding along the TR- Little Soap Creek. With a dam height of 26 feet and a storage capacity of 135 acre-feet, this structure plays a crucial role in safeguarding the surrounding environment and communities from the impacts of sudden water surges.
Operated and regulated by the Iowa Department of Natural Resources, Soap Creek Watershed Site 90-113 has a low hazard potential and has not been rated for condition assessment as of yet. Despite its moderate risk assessment, the dam continues to fulfill its primary purpose of flood risk reduction effectively. With a drainage area of 0.45 square miles and a surface area of 6.2 acres, this site showcases a harmonious blend of engineering excellence and environmental stewardship, highlighting the importance of sustainable water resource management in the region.
As water resource and climate enthusiasts delve into the intricate details of Soap Creek Watershed Site 90-113, they will uncover a wealth of information regarding its design, construction, and regulatory oversight. With its location in the Rock Island District and oversight by the Natural Resources Conservation Service, this structure stands as a testament to collaborative efforts in safeguarding water resources. As the site continues to be monitored and inspected for any potential risks or modifications, it serves as a beacon of resilience in the face of changing climate patterns, reinforcing the necessity of proactive water management strategies for a sustainable future.
Year Completed |
2003 |
Dam Length |
420 |
Dam Height |
26 |
River Or Stream |
TR- LITTLE SOAP CREEK |
Primary Dam Type |
Earth |
Surface Area |
6.2 |
Drainage Area |
0.45 |
Nid Storage |
135 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Des Moines River At Ottumwa
|
1090cfs |
Fox River At Bloomfield
|
7cfs |
Chariton River Near Rathbun
|
14cfs |
Chariton River Near Moulton
|
34cfs |
Cedar Creek Near Bussey
|
11cfs |
Des Moines River Near Tracy
|
1400cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Soap Creek Watershed Site 90-113