Wilson Creek 2-26 Reservoir Report

Last Updated: December 6, 2025

Wilson Creek 2-26 is a locally owned earth dam located in Otoe County, Nebraska, designed by the USDA NRCS and completed in 1965.


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Summary

This dam serves multiple purposes, including flood risk reduction, with a primary height of 27 feet and a hydraulic height of 26 feet. The dam has a storage capacity of 54 acre-feet and covers a surface area of 4 acres, with a drainage area of 0.4 square miles along the TR-N FK Little Nemaha River.

Managed by the Nebraska Department of Natural Resources, Wilson Creek 2-26 is regulated, permitted, inspected, and enforced by state authorities. The dam has a low hazard potential and is currently in satisfactory condition as of the last assessment in May 2019. While the dam does not have associated spillways or locks, it has a maximum discharge of 221 cubic feet per second, providing essential flood protection to the surrounding area. With its strategic location and design, Wilson Creek 2-26 plays a crucial role in managing water resources and mitigating climate-related risks in the region.

Overall, Wilson Creek 2-26 stands as a vital infrastructure project in Nebraska, contributing to flood risk reduction and water resource management efforts. With its history of effective operation and maintenance, this earth dam continues to safeguard the community and surrounding lands from potential water-related hazards. As water resource and climate enthusiasts, understanding the significance of structures like Wilson Creek 2-26 is essential in promoting sustainable practices and resilience in the face of changing environmental conditions.

Year Completed

1965

Dam Length

555

Dam Height

27

River Or Stream

TR-N FK LITTLE NEMAHA RIVER

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

26

Drainage Area

0.4

Nid Storage

54

Structural Height

33

Hazard Potential

Low

Foundations

Soil

Nid Height

33
       
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.