Scs-Bear-Fall & Coon Creek Site-008 Reservoir Report
Last Updated: December 17, 2025
SCS-Bear-Fall & Coon Creek Site-008 in Logan, Oklahoma, is a state-regulated earth dam constructed in 1960 by USDA NRCS for flood risk reduction along Grant Creek.
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Summary
The dam stands at a height of 30 feet with a length of 1670 feet and a storage capacity of 1150 acre-feet. Despite its low hazard potential, the risk assessment categorizes this dam as having a very high risk, emphasizing the importance of regular inspections and maintenance to ensure its safety and functionality.
Located in the city of Wellston, this dam is under the jurisdiction of the Oklahoma Water Resources Board (OWRB) and falls within the Tulsa District of the US Army Corps of Engineers. While the dam is currently in a "not rated" condition assessment status, it is essential for stakeholders to prioritize risk management measures to mitigate the potential threats associated with this structure. With a controlled spillway and one valve outlet gate, the dam serves a critical role in protecting the surrounding area from flood events, highlighting the importance of effective emergency action planning and coordination among relevant agencies.
As water resource and climate enthusiasts track the developments at SCS-Bear-Fall & Coon Creek Site-008, it is crucial to recognize the collaborative efforts of state and federal agencies in managing and maintaining this essential infrastructure. With a focus on flood risk reduction and public safety, ongoing inspections and risk assessments are vital to address the identified high-risk factors and ensure the long-term resilience of this earth dam in the face of changing climate conditions and hydrological challenges.
Year Completed |
1960 |
Dam Length |
1670 |
Dam Height |
30 |
River Or Stream |
GRANT CR |
Primary Dam Type |
Earth |
Surface Area |
33 |
Hydraulic Height |
30 |
Nid Storage |
1150 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cimarron River Near Guthrie
|
453cfs |
Cottonwood Creek Near Seward
|
64cfs |
Deep Fork At Warwick
|
25cfs |
Cimarron River Near Ripley
|
493cfs |
North Canadian River At Britton Rd At Okc
|
57cfs |
North Canadian River Near Harrah
|
159cfs |
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-008