Aowa Creek 63-1a Reservoir Report
Nearby: Aowa Creek 62-5a Aowa Creek 6-7a
Last Updated: December 13, 2025
Aowa Creek 63-1a is a vital flood risk reduction structure located in Dixon, Nebraska, designed by the USDA NRCS in 1978.
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Summary
This earth dam stands at a height of 48 feet and has a hydraulic height of 47 feet, providing essential protection to the surrounding area. With a storage capacity of 640 acre-feet and a drainage area of 3.5 square miles, this structure plays a crucial role in managing water resources in the region.
Managed by the local government and regulated by the Nebraska Department of Natural Resources, Aowa Creek 63-1a has a low hazard potential and is reported to be in satisfactory condition as of the last inspection in September 2019. The dam's primary purpose is flood risk reduction, serving as a crucial infrastructure for the community. With a maximum discharge capacity of 830 cubic feet per second, this structure ensures the safety and well-being of residents in the area during times of high water flow.
As a significant feature in the water resource management system, Aowa Creek 63-1a stands as a testament to successful collaboration between the federal and local agencies. With a meticulous design and construction process by the Natural Resources Conservation Service, this dam continues to safeguard the region against potential flooding events. Its strategic location and efficient operation highlight the importance of sustainable infrastructure in mitigating the impacts of climate change on water resources and communities.
Year Completed |
1978 |
Dam Length |
1016 |
Dam Height |
48 |
River Or Stream |
TR-AOWA CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
47 |
Drainage Area |
3.5 |
Nid Storage |
640 |
Structural Height |
48 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
48 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Vermillion River Nr Vermillion Sd
|
33cfs |
Logan Creek At Wakefield
|
149cfs |
Big Sioux River At Akron
|
816cfs |
Missouri River At Sioux City
|
15100cfs |
Perry Creek Near Milnerville
|
25cfs |
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.
Aowa Creek 63-1a
Buckskin Hills WMA