Scs-Bear-Fall & Coon Creek Site-021 Reservoir Report
Last Updated: December 13, 2025
SCS-Bear-Fall & Coon Creek Site-021, located in Logan, Oklahoma, is a state-regulated dam designed by the USDA NRCS for flood risk reduction along the TR-OPOSSUM CREEK.
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Summary
Completed in 1960, this Earth-type dam stands at a height of 23 feet with a length of 870 feet, providing a storage capacity of 188 acre-feet. With a controlled spillway and a maximum discharge of 640 cubic feet per second, this dam plays a crucial role in managing floodwaters and protecting the surrounding area from inundation.
Although last inspected in 1980, this dam has a low hazard potential and is currently assessed as "Not Rated" in terms of condition. Despite its age, the structure has been designated as meeting regulatory requirements and is equipped with a single valve outlet gate for water release. While the risk assessment indicates a very high risk level (score of 1), the dam has not been modified in recent years, suggesting that it has been able to withstand the test of time and continue to serve its intended purpose effectively. With state inspection, enforcement, and permitting in place, the SCS-Bear-Fall & Coon Creek Site-021 remains a critical component of water resource management in the area, highlighting the importance of ongoing monitoring and maintenance for optimal performance.
Year Completed |
1960 |
Dam Length |
870 |
Dam Height |
23 |
River Or Stream |
TR-OPOSSUM CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
23 |
Nid Storage |
188 |
Structural Height |
23 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Deep Fork At Warwick
|
24cfs |
North Canadian River At Britton Rd At Okc
|
366cfs |
North Canadian River Near Harrah
|
664cfs |
Cottonwood Creek Near Seward
|
66cfs |
Cimarron River Near Guthrie
|
465cfs |
Cimarron River Near Ripley
|
498cfs |
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-Bear-Fall & Coon Creek Site-021