Dry Creek South 1-D Reservoir Report
Last Updated: December 6, 2025
Dry Creek South 1-D, located in Red Willow, Nebraska, is a local government-owned earth dam designed by USDA NRCS and completed in 1965 for flood risk reduction purposes.
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Summary
Standing at a height of 38 feet with a hydraulic height of 35 feet, this dam has a storage capacity of 590 acre-feet and serves a drainage area of 2.6 square miles. With a length of 556 feet and a surface area of 11 acres, the dam has a low hazard potential and is deemed to be in satisfactory condition as of the last inspection in September 2018.
Managed by the Nebraska Department of Natural Resources, Dry Creek South 1-D is regulated, permitted, inspected, and enforced by state agencies to ensure its structural integrity and safety. The dam, located in the city of MCCOOK, plays a crucial role in mitigating flood risks in the area and is equipped with necessary operational mechanisms. Despite its low hazard potential, the dam is subject to regular inspections every five years to maintain its functionality and safeguard surrounding communities from potential disasters.
Overall, Dry Creek South 1-D serves as a vital infrastructure for flood control in the region, highlighting the collaborative efforts between local government, state agencies, and federal designers in ensuring water resource management and climate resilience. With a focus on risk reduction and safety measures, this earth dam stands as a testament to proactive measures taken to protect communities and enhance water resource sustainability in Nebraska.
Year Completed |
1965 |
Dam Length |
556 |
Dam Height |
38 |
River Or Stream |
TR-DRY CREEK |
Primary Dam Type |
Earth |
Surface Area |
11 |
Hydraulic Height |
35 |
Drainage Area |
2.6 |
Nid Storage |
590 |
Structural Height |
38 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
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.
Dry Creek South 1-D