Mucky Creek Subwatershed Site 5-4185 Reservoir Report
Last Updated: December 14, 2025
Located in Monona County, Iowa, the Mucky Creek Subwatershed Site 5-4185 is a local government-owned structure designed by the USDA NRCS for fire protection, stock, and small fish pond purposes.
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Summary
Completed in 1967, this earth dam stands at a height of 37 feet and has a storage capacity of 22 acre-feet. With a low hazard potential and moderate risk assessment, the dam is state-regulated, inspected, and enforced by the Iowa DNR, ensuring its safety and functionality.
Situated in Mapleton along the TR-Mapleton River, this dam serves multiple purposes including flood risk reduction. With a drainage area of 0.37 square miles and a surface area of 2 acres, the structure plays a crucial role in managing water resources in the area. Although not currently rated for condition assessment, the dam's low hazard potential and state oversight provide assurance of its reliability and effectiveness in mitigating potential risks during emergencies.
For water resource and climate enthusiasts, the Mucky Creek Subwatershed Site 5-4185 offers a fascinating glimpse into the intersection of infrastructure, environmental conservation, and public safety. As a vital component of the local water management system, this dam exemplifies the efforts to balance human needs with natural ecosystems, showcasing the importance of sustainable water resource management in the face of changing climate patterns.
Year Completed |
1967 |
Dam Height |
37 |
River Or Stream |
TR-MAPLE RIVER |
Primary Dam Type |
Earth |
Surface Area |
2 |
Drainage Area |
0.37 |
Nid Storage |
22 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
37 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Maple River At Mapleton
|
323cfs |
Little Sioux River Near Turin
|
1040cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
West Fork Ditch At Hornick
|
80cfs |
Soldier River At Pisgah
|
112cfs |
Little Sioux River At Correctionville
|
327cfs |
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.
Mucky Creek Subwatershed Site 5-4185