Wilson Creek 9-C Reservoir Report
Nearby: Wilson Creek 9-1 Wilson Creek 9-6
Last Updated: December 6, 2025
Wilson Creek 9-C, located in Otoe, Nebraska, is a crucial earth dam structure designed by the USDA NRCS in 1970 for flood risk reduction along the TR-N FK LITTLE NEMAHA RIVER.
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Summary
This dam stands at a height of 37 feet, with a hydraulic height of 36 feet and a structural height of 38 feet, offering a maximum storage capacity of 860.5 acre-feet. The dam spans 840 feet in length and covers a surface area of 21 acres, serving a drainage area of 2.1 square miles.
Managed by the local government and regulated by the Nebraska Department of Natural Resources, Wilson Creek 9-C is designated as a significant hazard potential structure with a fair condition assessment as of May 2019. Despite its age, the dam continues to play a vital role in mitigating flood risks in the region, with regular inspections conducted every three years to ensure its integrity and functionality. The dam's primary purpose remains flood risk reduction, aligning with its construction history and ongoing commitment to safeguarding the surrounding community from potential water-related disasters.
As an essential component of water resource management in Nebraska, Wilson Creek 9-C exemplifies the collaborative efforts between federal agencies like the Natural Resources Conservation Service and local authorities to uphold dam safety standards and protect public safety. With its strategic location and vital role in flood control, this earth dam stands as a testament to the importance of sustainable infrastructure in mitigating the impacts of climate change on water resources and maintaining the resilience of communities in the face of evolving environmental challenges.
Year Completed |
1970 |
Dam Length |
840 |
Dam Height |
37 |
River Or Stream |
TR-N FK LITTLE NEMAHA RIVER |
Primary Dam Type |
Earth |
Surface Area |
21 |
Hydraulic Height |
36 |
Drainage Area |
2.1 |
Nid Storage |
860.5 |
Structural Height |
38 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Weeping Water Creek At Union
|
20cfs |
Missouri River At Nebraska City
|
24100cfs |
Platte R At Louisville Ne
|
4630cfs |
Salt Creek At Greenwood
|
125cfs |
Stevens Creek Nr. Lincoln
|
3cfs |
Platte R Nr Ashland
|
6290cfs |
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.
Wilson Creek 9-C