Wilson Creek 12-11 Reservoir Report
Nearby: Wilson Creek 12-9b Wilson Creek 12-6
Last Updated: December 6, 2025
Wilson Creek 12-11 is a locally owned earth dam located in Otoe, Nebraska, designed by the USDA NRCS and completed in 1966.
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Summary
This dam serves multiple purposes, including flood risk reduction, and is regulated by the Nebraska Department of Natural Resources. With a height of 21 feet and a length of 600 feet, Wilson Creek 12-11 has a storage capacity of 149 acre-feet and covers a surface area of 10 acres. The dam has a low hazard potential and is deemed to be in satisfactory condition as of the last inspection in June 2016.
Situated on the TR-N FK Little Nemaha River, Wilson Creek 12-11 plays a vital role in managing water resources in the area, with a maximum discharge capacity of 482 cubic feet per second. The dam's structure primarily consists of stone core and soil foundation, contributing to its stability and effectiveness in flood control. The dam is owned and operated by the local government, highlighting the importance of community involvement in water resource management and climate resilience efforts.
Overall, Wilson Creek 12-11 stands as a key infrastructure asset in Otoe County, Nebraska, providing essential flood risk reduction measures and water storage capacity for the region. Its satisfactory condition, low hazard potential, and regulatory oversight by the Nebraska DNR demonstrate a commitment to maintaining the dam's integrity and ensuring its continued effectiveness in protecting the surrounding community from potential water-related hazards. For water resource and climate enthusiasts, Wilson Creek 12-11 serves as a noteworthy example of local government ownership and management of critical infrastructure for sustainable water resource management.
Year Completed |
1966 |
Dam Length |
600 |
Dam Height |
21 |
River Or Stream |
TR-N FK LITTLE NEMAHA RIVER |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
19 |
Drainage Area |
1 |
Nid Storage |
149 |
Structural Height |
30 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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 |
Platte R Nr Ashland
|
6290cfs |
Wahoo Cr At Ashland
|
78cfs |
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 12-11