Scs-Bear-Fall & Coon Creek Site-027 Reservoir Report
Last Updated: December 15, 2025
SCS-Bear-Fall & Coon Creek Site-027, located in Logan, Oklahoma, is a state-regulated earth dam designed by USDA NRCS with a primary purpose of flood risk reduction.
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Summary
Completed in 1960, this dam stands at a height of 23 feet and has a storage capacity of 270 acre-feet. The dam spans 910 feet along the OPOSSUM CR river, with a controlled spillway width of 1 foot and a maximum discharge capacity of 870 cubic feet per second.
Despite being rated as low hazard potential and not yet assessed for condition, this dam poses a very high risk according to the data. Although the last inspection was conducted in 1980, the dam remains in operation with regular inspections scheduled every 5 years. With a single valve outlet gate and a stone core foundation, the dam serves as a critical infrastructure for managing floodwaters and protecting downstream areas in the region.
As water resource and climate enthusiasts, the SCS-Bear-Fall & Coon Creek Site-027 offers a fascinating case study in dam engineering and risk management. With its strategic location, design features, and operational history, this dam presents a unique opportunity to explore the intersection of water resource management, infrastructure resilience, and environmental stewardship in the face of changing climate conditions.
Year Completed |
1960 |
Dam Length |
910 |
Dam Height |
23 |
River Or Stream |
OPOSSUM CR |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
23 |
Nid Storage |
270 |
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
|
73cfs |
Cottonwood Creek Near Seward
|
66cfs |
North Canadian River Near Harrah
|
200cfs |
Cimarron River Near Guthrie
|
459cfs |
Cimarron River Near Ripley
|
488cfs |
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-027