Dry Creek South 3-A Reservoir Report
Last Updated: December 5, 2025
Dry Creek South 3-A is a vital flood risk reduction structure located in Red Willow, Nebraska, designed by USDA NRCS and completed in 1964.
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Summary
Owned by the local government, this Earth dam stands at a height of 37 feet and has a structural height of 42 feet, with a length of 667 feet. With a storage capacity of 840 acre-feet and a normal storage of 72 acre-feet, it plays a crucial role in mitigating flood risks in the area, covering a drainage area of 4.1 square miles.
Managed by the Nebraska Department of Natural Resources, Dry Creek South 3-A is inspected regularly to ensure its satisfactory condition and low hazard potential. The dam's location in MCCOOK along the TR-DRY CREEK stream highlights its importance in protecting the surrounding community from potential flooding events. With its stone core and soil foundation, this structure serves as a significant asset in the region's water resource management and climate resilience efforts.
Despite its age, Dry Creek South 3-A continues to meet regulatory standards and plays a key role in the flood risk reduction strategy for the area. With a history of effective operation and maintenance, this dam stands as a testament to the successful collaboration between local government, federal agencies, and the USDA NRCS in safeguarding the community against potential water-related disasters. Its strategic location, sturdy design, and regular inspections make it a crucial component in the region's water resource infrastructure and climate adaptation measures.
Year Completed |
1964 |
Dam Length |
667 |
Dam Height |
37 |
River Or Stream |
TR-DRY CREEK |
Primary Dam Type |
Earth |
Surface Area |
16 |
Hydraulic Height |
37 |
Drainage Area |
4.1 |
Nid Storage |
840 |
Structural Height |
42 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
42 |
Seasonal Comparison
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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.
Dry Creek South 3-A