Mc Larty-Edwards Subwtrshd Sta 20+00 #1 Reservoir Report
Last Updated: December 15, 2025
Mc Larty-Edwards Subwtrshd Sta 20+00 #1 is a dam located in Woodbury, Iowa, with a primary purpose of serving as a fire protection, stock, or small fish pond.
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Summary
Built in 1966 by the USDA NRCS, this earthen dam stands at a height of 33 feet and has a storage capacity of 35 acre-feet. It is designed to reduce flood risk and is regulated by the Iowa DNR, with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations.
Situated on TR-MUD CREEK, this dam has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. Its risk assessment is moderate, with a risk level of 3. While the dam has not had any modifications in recent years, it is important to note that emergency action plans, inundation maps, and risk management measures are not currently in place. Overall, Mc Larty-Edwards Subwtrshd Sta 20+00 #1 plays a crucial role in water resource management and climate adaptation efforts in the region.
This dam, owned by the local government, serves as a vital infrastructure for the community of MOVILLE, providing essential water storage and flood protection. With its controlled spillway and earth dam design, it showcases the importance of sustainable water management practices in safeguarding the environment and enhancing resilience to climate change impacts. As water resource and climate enthusiasts, understanding the significance of structures like Mc Larty-Edwards Subwtrshd Sta 20+00 #1 is essential in promoting sustainable development and ensuring the long-term health of our water resources.
Year Completed |
1966 |
Dam Length |
385 |
Dam Height |
33 |
River Or Stream |
TR-MUD CREEK |
Primary Dam Type |
Earth |
Surface Area |
1.5 |
Drainage Area |
0.19 |
Nid Storage |
35 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Floyd River At James
|
187cfs |
Missouri River At Sioux City
|
14400cfs |
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.
Mc Larty-Edwards Subwtrshd Sta 20+00 #1