Wilson Creek 2-2b Reservoir Report
Nearby: Wilson Creek 2-2 Gibbs Dam
Last Updated: December 6, 2025
Wilson Creek 2-2b, a flood risk reduction dam located in Dunbar, Nebraska, was completed in 1963 by USDA NRCS.
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Summary
The dam stands at a height of 29 feet and stretches 660 feet in length, providing a storage capacity of 29 acre-feet. Situated on the TR-N FK Little Nemaha River, this earth dam with buttress and stone core types serves the primary purpose of flood risk reduction in the region. Despite its age, Wilson Creek 2-2b has a low hazard potential and is currently in satisfactory condition, as assessed in May 2017.
Managed by the local government and regulated by the Nebraska Department of Natural Resources, Wilson Creek 2-2b undergoes inspections every 5 years to ensure its structural integrity and functionality. With a drainage area of 0.26 square miles and a normal storage capacity of 5 acre-feet, the dam serves as a crucial infrastructure for mitigating flood risks in Otoe County, Nebraska. The dam's location on the NES4T8R12E coordinates, in close proximity to the Kansas City District, highlights its significance in the regional water resource management system.
Wilson Creek 2-2b, overseen by the local government and designed by USDA NRCS, stands as a testament to effective flood risk reduction efforts in Nebraska. With its satisfactory condition, low hazard potential, and regular inspections, the dam continues to play a vital role in safeguarding the surrounding community from potential flood events. As climate change impacts water resources, structures like Wilson Creek 2-2b are essential for enhancing resilience and adapting to the evolving environmental challenges in the region.
Year Completed |
1963 |
Dam Length |
660 |
Dam Height |
29 |
River Or Stream |
TR-N FK LITTLE NEMAHA RIVER |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
29 |
Drainage Area |
0.26 |
Nid Storage |
29 |
Structural Height |
29 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Weeping Water Creek At Union
|
20cfs |
Missouri River At Nebraska City
|
22500cfs |
Platte R At Louisville Ne
|
5580cfs |
Nishnabotna River Above Hamburg
|
1350cfs |
Little Nemaha River At Auburn
|
82cfs |
Salt Creek At Greenwood
|
125cfs |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Camp Woodmen
|
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Riverview Marina State Rec Area
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Victorian Acres Campground
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Wilson Creek 2-2b