Scs-Upper Black Bear Creek Site-58 Reservoir Report
Last Updated: December 9, 2025
SCS-Upper Black Bear Creek Site-58 is a state-regulated dam located in Sumner, Noble County, Oklahoma.
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Summary
Designed by USDA NRCS and completed in 1963, this earth dam stands at a height of 38 feet and serves the primary purpose of flood risk reduction along the TR-Black Bear Creek. With a maximum storage capacity of 763 acre-feet and a normal storage of 138 acre-feet, this dam covers a surface area of 22 acres.
The dam features a controlled spillway with a width of 1 foot and an outlet gate consisting of a single valve. Despite being classified as having a low hazard potential, the risk assessment for SCS-Upper Black Bear Creek Site-58 indicates a very high risk level, with a DSAC assigned date and no concrete risk management measures in place. The last inspection of this dam was conducted in November 1999, with a frequency of inspection every 5 years, and its condition is currently not rated.
Enthusiasts of water resources and climate will find SCS-Upper Black Bear Creek Site-58 intriguing due to its historical significance in flood risk reduction efforts in the region. The dam's location within the Tulsa District and its association with the Natural Resources Conservation Service adds to its importance in the management of water resources. Despite its low hazard potential, the high-risk assessment highlights the need for continued monitoring and potential risk mitigation measures to ensure the safety and effectiveness of this vital infrastructure.
Year Completed |
1963 |
Dam Length |
1100 |
Dam Height |
38 |
River Or Stream |
TR-BLACK BEAR CREEK |
Primary Dam Type |
Earth |
Surface Area |
22 |
Hydraulic Height |
38 |
Nid Storage |
763 |
Structural Height |
38 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Skeleton Creek Near Lovell
|
28cfs |
Salt Fork Arkansas River At Tonkawa
|
539cfs |
Skeleton Creek At Enid
|
6cfs |
Cimarron River Near Guthrie
|
483cfs |
Black Bear Creek At Pawnee
|
10cfs |
Chikaskia River Near Blackwell
|
234cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Scs-Upper Black Bear Creek Site-58