Scs-Lower Black Bear Creek Site-21 Reservoir Report

Last Updated: December 6, 2025

SCS-Lower Black Bear Creek Site-21 is a state-regulated earth dam located in Pawnee, Oklahoma, with the primary purpose of flood risk reduction.


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Summary

Constructed in 1975 by the USDA NRCS, this dam stands at a height of 44 feet and spans a length of 1470 feet, with a maximum storage capacity of 1607 acre-feet. The dam is designed with a controlled spillway and a single outlet valve, with a hazard potential rated as low and a very high risk assessment.

Managed by the Oklahoma Water Resources Board, this dam on TR-Camp Creek serves as a crucial infrastructure for mitigating flood risks in the region. Despite being inspected last in 1980, the dam is deemed to be in good condition, although not officially rated. The surrounding area of Blackburn benefits from the protection provided by this dam, with a surface area of 12 acres and a normal storage capacity of 73 acre-feet. With a maximum discharge capacity of 710 cubic feet per second, this dam plays a key role in safeguarding against potential flooding events in the area.

Year Completed

1975

Dam Length

1470

Dam Height

44

River Or Stream

TR-CAMP CREEK

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

42

Nid Storage

1607

Structural Height

44

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

44
       
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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.