Scs-Bear Hybarger Site-3 Reservoir Report

Last Updated: December 7, 2025

SCS-Bear Hybarger Site-3 in Garvin, Oklahoma is a state-regulated earth dam completed in 1966 by USDA NRCS, with a primary purpose of flood risk reduction along the TR-HYBARGER CR.


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Summary

The dam stands at 25 feet in height and spans 1600 feet in length, providing a storage capacity of 2200 acre-feet and a maximum discharge of 6960 cubic feet per second. Its controlled spillway and slide gate outlet ensure efficient water management in times of high flow.

Despite being assessed as in fair condition during its last inspection in October 2011, SCS-Bear Hybarger Site-3 carries a significant hazard potential and a very high risk rating. The dam's condition assessment, emergency action plan, and risk management measures are areas that may require attention to enhance its resilience and safety. With a drainage area of 3.8 square miles, this dam plays a crucial role in mitigating flood events in the region and underscores the importance of proactive monitoring and maintenance to protect downstream communities and water resources.

Year Completed

1966

Dam Length

1600

Dam Height

25

River Or Stream

TR-HYBARGER CR

Primary Dam Type

Earth

Surface Area

23

Hydraulic Height

25

Drainage Area

3.8

Nid Storage

2200

Structural Height

25

Outlet Gates

Slide (sluice gate) - 1

Hazard Potential

Significant

Foundations

Soil

Nid Height

25
       
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.