Little River Watershed Site 65-2 Reservoir Report
Last Updated: December 10, 2025
Located in Decatur County, Iowa, the Little River Watershed Site 65-2 is a crucial flood risk reduction structure managed by the local government.
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Summary
Constructed in 1980 by the USDA NRCS, this earth dam stands at a height of 30 feet and spans 635 feet in length, with a storage capacity of 356 acre-feet. Situated on the TR-West Little River, this site plays a vital role in protecting the surrounding area from potential flooding events.
With state regulation and inspection in place, the Iowa DNR oversees the maintenance and operation of Little River Watershed Site 65-2 to ensure its structural integrity and compliance with safety standards. Despite being classified with a low hazard potential, the dam is considered to have a moderate risk level, emphasizing the need for ongoing risk management measures. As a part of the broader water resource management efforts, this site serves as a key component in safeguarding the local community and ecosystem from the impacts of extreme weather events and changing climate patterns.
As an essential infrastructure designed for flood risk reduction, Little River Watershed Site 65-2 stands as a testament to the collaborative efforts between local government agencies and the USDA NRCS in safeguarding water resources and enhancing climate resilience in the region. Its strategic location, design features, and regulatory oversight highlight its significance in mitigating flood risks and protecting the surrounding environment. With a focus on proactive risk management and ongoing maintenance, this site exemplifies the critical role of sustainable water resource management practices in addressing climate-related challenges.
Year Completed |
1980 |
Dam Length |
635 |
Dam Height |
30 |
River Or Stream |
TR-WEST LITTLE RIVER |
Primary Dam Type |
Earth |
Surface Area |
17 |
Drainage Area |
0.86 |
Nid Storage |
356 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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 River Watershed Site 65-2
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Slip Bluff County Park
Sand Creek State Wildlife Area
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