Mud Creek Subwatershed Site 8-2 Reservoir Report
Last Updated: December 14, 2025
Mud Creek Subwatershed Site 8-2, located in Woodbury County, Iowa, is a local government-owned structure designed by USDA NRCS for fire protection, stock, or small fish pond purposes.
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Summary
Completed in 1973, this earth dam stands at a height of 30 feet and has a length of 420 feet, with a storage capacity of 51 acre-feet. With a low hazard potential and moderate risk assessment, this structure plays a crucial role in flood risk reduction for the area.
Managed by the Iowa DNR, this dam is state-regulated and permitted, with regular inspections and enforcement in place. The spillway type is uncontrolled, with a surface area of 3.4 acres and serving a drainage area of 0.48 square miles. Despite the structure being in good condition and not yet rated for assessment, the risk management measures are in place to ensure the safety and functionality of Mud Creek Subwatershed Site 8-2 for the surrounding community.
Overall, Mud Creek Subwatershed Site 8-2 is a vital asset in water resource management, providing various benefits such as flood risk reduction and water storage for fire protection and livestock. With its strategic location and design, this earth dam serves as a protective barrier against potential hazards, showcasing the importance of sustainable infrastructure in safeguarding our environment and communities in the face of climate change challenges.
Year Completed |
1973 |
Dam Length |
420 |
Dam Height |
30 |
River Or Stream |
TR-MUD CREEK |
Primary Dam Type |
Earth |
Surface Area |
3.4 |
Drainage Area |
0.48 |
Nid Storage |
51 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Floyd River At James
|
187cfs |
Missouri River At Sioux City
|
13700cfs |
Little Sioux River At Correctionville
|
327cfs |
Perry Creek Near Milnerville
|
25cfs |
West Fork Ditch At Hornick
|
80cfs |
Omaha Cr At Homer
|
45cfs |
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.
Mud Creek Subwatershed Site 8-2