Mucky Creek Subwatershed Sta 19+20 Reservoir Report
Last Updated: December 15, 2025
Located in Monona County, Iowa, the Mucky Creek Subwatershed Sta 19+20 is a vital water resource managed by the local government and designed by USDA NRCS.
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Summary
This earth dam structure was completed in 1965 for purposes such as fire protection, stock, small fish pond, and flood risk reduction. With a height of 42 feet and a storage capacity of 61 acre-feet, this dam serves the Maple River and covers a surface area of 2.5 acres within a drainage area of 0.26 square miles.
The Mucky Creek Subwatershed Sta 19+20 has a low hazard potential and a moderate risk assessment rating. While the condition assessment is not rated, the dam is regulated, permitted, inspected, and enforced by the Iowa Department of Natural Resources. Despite lacking certain information such as last inspection date and emergency action plan status, this dam plays a crucial role in water management and ecosystem preservation in the region. Water resource and climate enthusiasts will find this structure intriguing for its historical significance and environmental impact.
Overall, the Mucky Creek Subwatershed Sta 19+20 serves as a key water infrastructure in Monona County, Iowa, contributing to flood control, wildlife habitat preservation, and recreational opportunities. Managed by the local government and designed by USDA NRCS, this earth dam has been in operation for over five decades, showcasing its importance in sustaining the Maple River ecosystem. With a focus on fire protection, stock, and small fish pond maintenance, this dam highlights the intersection of human development and environmental conservation in the region, making it a noteworthy site for water resource and climate enthusiasts to explore and study.
Year Completed |
1965 |
Dam Length |
468 |
Dam Height |
42 |
River Or Stream |
TR-MAPLE RIVER |
Primary Dam Type |
Earth |
Surface Area |
2.5 |
Drainage Area |
0.26 |
Nid Storage |
61 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
42 |
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 Sta 19+20