Wilson Creek 1-F Reservoir Report

Last Updated: December 6, 2025

Wilson Creek 1-F is a vital flood risk reduction structure located in Otoe, Nebraska, along the TR-N FK LITTLE NEMAHA RIVER.


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Summary

Built in 1963 by the USDA NRCS, this earth dam stands at a height of 45 feet and has a length of 947 feet, providing a storage capacity of 564 acre-feet. With a normal storage of 133 acre-feet and a low hazard potential, Wilson Creek 1-F plays a crucial role in mitigating potential flooding in the area.

Managed by the Nebraska Department of Natural Resources, Wilson Creek 1-F undergoes regular inspections to ensure its structural integrity and functionality. The dam is in satisfactory condition as of the last inspection in June 2016, with an inspection frequency of 5 years. Despite its low hazard potential, the dam's emergency action plan status and risk assessment measures are currently unavailable, highlighting the need for continued monitoring and preparedness in the face of potential climate-related challenges.

Situated within the Kansas City District, Wilson Creek 1-F serves as a testament to the collaborative efforts between local government agencies and the USDA NRCS in safeguarding the region against flooding events. As water resource and climate enthusiasts, it is imperative to recognize the importance of such structures in maintaining the resilience of our communities in the face of changing environmental conditions.

Year Completed

1963

Dam Length

947

Dam Height

45

River Or Stream

TR-N FK LITTLE NEMAHA RIVER

Primary Dam Type

Earth

Surface Area

18

Hydraulic Height

45

Drainage Area

2

Nid Storage

564

Structural Height

45

Hazard Potential

Low

Foundations

Soil

Nid Height

45
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.