Oak-Middle 63-C Reservoir Report

Last Updated: December 6, 2025

Oak-Middle 63-C is a local government-owned earth dam located in Butler, Nebraska, designed by USDA NRCS and regulated by NE DNR.


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Summary

Completed in 1965, this dam serves the primary purpose of flood risk reduction along the TR-OAK CREEK river or stream. With a structural height of 44 feet and a length of 852 feet, Oak-Middle 63-C has a storage capacity of 422 acre-feet and a drainage area of 1.3 square miles.

Despite its low hazard potential and satisfactory condition assessment, Oak-Middle 63-C is inspected every five years to ensure its continued safety and effectiveness in mitigating flood risks. The dam has a maximum discharge capacity of 1875 cubic feet per second and a normal storage capacity of 73 acre-feet. It covers a surface area of 12 acres and is located in a strategic position to protect the surrounding area from potential inundation.

Managed by the Natural Resources Conservation Service, Oak-Middle 63-C plays a crucial role in flood management in the region. With its modest height of 40 feet and stone core foundation, this dam stands as a vital infrastructure for water resource and climate enthusiasts, showcasing the importance of sound engineering in safeguarding communities against the impacts of extreme weather events.

Year Completed

1965

Dam Length

852

Dam Height

40

River Or Stream

TR-OAK CREEK

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

40

Drainage Area

1.3

Nid Storage

422

Structural Height

44

Hazard Potential

Low

Foundations

Soil

Nid Height

44
       
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.