Mc Larty-Edwards Subwtrshd Sta 65+93 #M Reservoir Report
Last Updated: December 15, 2025
Mc Larty-Edwards Subwtrshd Sta 65+93 #M is a dam located in Woodbury County, Iowa, specifically in the city of Moville.
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Summary
Built in 1966 by USDA NRCS, this earth dam stands at a height of 33 feet and has a length of 670 feet, creating a reservoir with a storage capacity of 133 acre-feet. The primary purpose of this dam is for fire protection, stock, or small fish pond, with additional benefits including flood risk reduction for the local area.
Operated by the local government, Mc Larty-Edwards Subwtrshd Sta 65+93 #M is regulated by the Iowa Department of Natural Resources and is subject to state permitting, inspection, and enforcement. Despite being classified as having a low hazard potential, the dam is considered to have a moderate risk level, with a risk assessment rating of 3. While the condition of the dam has not been rated, it is important to note that the emergency action plan (EAP) for the dam is not prepared, and there are no updated inundation maps available.
Located on TR-Mud Creek, this dam plays a crucial role in water resource management in the area, providing essential benefits for the community while also posing potential risks that need to be monitored and managed effectively. Climate and water resource enthusiasts will find Mc Larty-Edwards Subwtrshd Sta 65+93 #M to be a fascinating case study in dam infrastructure and the intersection of water management, environmental conservation, and public safety.
Year Completed |
1966 |
Dam Length |
670 |
Dam Height |
33 |
River Or Stream |
TR-MUD CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
0.77 |
Nid Storage |
133 |
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
|
13700cfs |
Perry Creek Near Milnerville
|
25cfs |
Little Sioux River At Correctionville
|
327cfs |
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 65+93 #M