Scs-Lower Black Bear Creek Site-11 Reservoir Report

Last Updated: December 6, 2025

SCS-Lower Black Bear Creek Site-11 is a state-regulated earth dam located in Noble, Oklahoma, designed by USDA NRCS in 1976 for flood risk reduction along the TR-BLACK BEAR CREEK.


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Summary

The dam stands at a height of 38 feet with a hydraulic height of 35 feet, serving a primary purpose of flood risk reduction. With a maximum storage capacity of 860 acre-feet and a normal storage of 98 acre-feet, the dam covers a surface area of 23 acres and has a maximum discharge capacity of 1060 cubic feet per second.

Despite being classified as having low hazard potential, the dam at SCS-Lower Black Bear Creek Site-11 is considered to have a very high risk level (1). The condition assessment has not been rated, and the last inspection was conducted in 1999, with an inspection frequency of 5 years. The dam features a controlled spillway with a width of 1 foot and an outlet gate consisting of a single valve. While emergency action plans and risk management measures are not specified, the dam is under the jurisdiction of the OWRB and meets state permitting, inspection, and enforcement requirements.

Year Completed

1976

Dam Length

1140

Dam Height

38

River Or Stream

TR-BLACK BEAR CREEK

Primary Dam Type

Earth

Surface Area

23

Hydraulic Height

35

Nid Storage

860

Structural Height

38

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

38
       
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.