Wilson Creek 3-1 Reservoir Report

Last Updated: December 7, 2025

Wilson Creek 3-1 is a significant earth dam located in Nebraska, specifically in Otoe County.


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Summary

Built in 1976 by the USDA NRCS, this dam serves multiple purposes including flood risk reduction and other water management activities. With a height of 48 feet and a length of 930 feet, Wilson Creek 3-1 has a storage capacity of 618 acre-feet and covers a surface area of 16 acres.

Managed by the Nebraska Department of Natural Resources, Wilson Creek 3-1 is regulated, inspected, and enforced to ensure its structural integrity and safety. Despite its low hazard potential, the dam is regularly monitored and has been assessed as satisfactory in its condition. The last inspection in June 2019 found the dam to be in good shape, meeting guidelines for emergency action plans and risk management measures.

Located along the TR-N FK Little Nemaha River, Wilson Creek 3-1 plays a crucial role in water resource management in the region. With its effective flood risk reduction capabilities and satisfactory condition, this dam stands as a testament to the importance of infrastructure in safeguarding communities against water-related disasters.

Year Completed

1976

Dam Length

930

Dam Height

48

River Or Stream

TR-N FK LITTLE NEMAHA RIVER

Primary Dam Type

Earth

Surface Area

16

Hydraulic Height

48

Drainage Area

3.6

Nid Storage

618

Structural Height

48

Hazard Potential

Low

Foundations

Soil

Nid Height

48
       
Seasonal Comparison

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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.