Aowa Creek 31-8 Reservoir Report
Nearby: Aowa Creek 32-4a Aowa Creek 32-3a
Last Updated: December 12, 2025
Aowa Creek 31-8 is a local government-owned dam located in Dixon, Nebraska, with a primary purpose of flood risk reduction.
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Summary
Constructed in 1995 by the USDA NRCS, this earth dam stands at 46 feet high with a hydraulic height of 40 feet, providing a maximum storage capacity of 192 acre-feet and a normal storage capacity of 60 acre-feet. With a low hazard potential and satisfactory condition assessment, this dam plays a crucial role in managing water resources in the area.
Situated on the TR-Powder Creek, Aowa Creek 31-8 covers a drainage area of 0.7 square miles and has a maximum discharge capacity of 629 cubic feet per second. The dam spans 577 feet in length and covers a surface area of 9 acres, serving as a vital infrastructure for flood control in the region. Managed by the NE DNR and subject to state regulation, inspection, and enforcement, this dam ensures the safety and resilience of the surrounding community against potential water-related risks.
With its strategic location and design by the USDA NRCS, Aowa Creek 31-8 has proven to be an effective solution for flood risk reduction in the area. The dam's satisfactory condition, low hazard potential, and compliance with state regulations highlight its importance in water resource management. As climate change continues to impact water systems, structures like Aowa Creek 31-8 play a critical role in mitigating flood risks and ensuring the safety and security of local communities.
Year Completed |
1995 |
Dam Length |
577 |
Dam Height |
42 |
River Or Stream |
TR-POWDER CREEK |
Primary Dam Type |
Earth |
Surface Area |
9 |
Hydraulic Height |
40 |
Drainage Area |
0.7 |
Nid Storage |
192 |
Structural Height |
46 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
46 |
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 31-8
Powder Creek