Little Beaver Subwatershed 2-15127 Reservoir Report
Last Updated: December 14, 2025
Little Beaver Subwatershed 2-15127, located in Woodbury, Iowa, is a local government-owned earth dam completed in 1957 for fire protection, stock, and small fish pond purposes.
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Summary
Situated on TR-Wolf Creek, this dam has a height of 34 feet and a length of 550 feet, providing a storage capacity of 45 acre-feet. With a drainage area of 0.26 square miles, the dam serves to reduce flood risks in the region while also offering low hazard potential.
Managed by the USDA NRCS and regulated by the Iowa DNR, Little Beaver Subwatershed 2-15127 is state-permitted, inspected, and enforced to ensure its structural integrity and functionality. The dam, with a surface area of 2 acres, contributes to the conservation and management of water resources in the area, maintaining a normal storage capacity of 17 acre-feet. Despite its moderate risk assessment rating, the dam is currently in not rated condition, highlighting the need for ongoing monitoring and maintenance to uphold its effectiveness in mitigating flood risks and supporting local fire protection and recreational activities.
With its strategic location and purposeful design, Little Beaver Subwatershed 2-15127 plays a vital role in the water resource management and climate resilience efforts in Woodbury County, Iowa. As a key component of the local infrastructure, this earth dam stands as a testament to the collaborative efforts between federal and state agencies to safeguard the community against potential hazards and ensure the sustainable utilization of water resources for both practical and recreational purposes. As enthusiasts of water resources and climate sustainability, it is essential to recognize and appreciate the significance of such structures in enhancing the resilience of our natural environment and promoting the well-being of local ecosystems and communities.
Year Completed |
1957 |
Dam Length |
550 |
Dam Height |
34 |
River Or Stream |
TR-WOLF CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Drainage Area |
0.26 |
Nid Storage |
45 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
West Fork Ditch At Hornick
|
80cfs |
Maple River At Mapleton
|
323cfs |
Little Sioux River At Correctionville
|
327cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Little Sioux River Near Turin
|
1040cfs |
Missouri River At Decatur
|
14900cfs |
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.
Little Beaver Subwatershed 2-15127