Wilson Creek 12-S Reservoir Report
Nearby: Wilson Creek 12-25 Wilson Creek 11-A
Last Updated: December 6, 2025
Wilson Creek 12-S is a vital earth dam located in Cass, Nebraska, designed by the USDA NRCS and completed in 1979 for flood risk reduction along the North Fork Little Nemaha River.
°F
°F
mph
Wind
%
Humidity
Summary
This state-regulated structure stands at 38 feet in height and has a storage capacity of 2,243 acre-feet, serving a drainage area of 5.3 square miles. With a significant hazard potential and satisfactory condition assessment, Wilson Creek 12-S plays a crucial role in mitigating flood risks in the region.
Owned and regulated by the local government with oversight from the Nebraska Department of Natural Resources, Wilson Creek 12-S is a key component in the flood risk management infrastructure of the area. Its spillway type and width, as well as emergency action plan details, remain unspecified in the available data. However, the dam's inspection frequency of 3 years ensures that its operational and structural integrity is maintained to safeguard the surrounding community and environment against potential hazards.
Located within the Kansas City District and with Congressman Jeff Fortenberry representing the area, Wilson Creek 12-S stands as a testament to collaborative efforts in water resource management. As climate change impacts continue to escalate, the importance of resilient infrastructure like Wilson Creek 12-S in adapting to and mitigating flood risks cannot be understated. This earth dam serves as a critical asset in protecting lives, property, and ecosystems along the North Fork Little Nemaha River, demonstrating the intersection of water resource management and climate resilience in action.
Year Completed |
1979 |
Dam Length |
1165 |
Dam Height |
35 |
River Or Stream |
N FK LITTLE NEMAHA RIVER |
Primary Dam Type |
Earth |
Surface Area |
61 |
Hydraulic Height |
35 |
Drainage Area |
5.3 |
Nid Storage |
2243 |
Structural Height |
38 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Platte R At Louisville Ne
|
4630cfs |
Salt Creek At Greenwood
|
125cfs |
Weeping Water Creek At Union
|
20cfs |
Platte R Nr Ashland
|
6290cfs |
Wahoo Cr At Ashland
|
78cfs |
Stevens Creek Nr. Lincoln
|
3cfs |
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-S