Oknoname 083011 Reservoir Report
Nearby: Oknoname 30141 Oknoname 30116
Last Updated: December 17, 2025
Oknoname 083011 is a privately owned earth dam located in Coyle, Oklahoma, on the TR-Cimarron River.
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Summary
Built in 1965, this dam stands at 18 feet tall and spans 460 feet in length, with a storage capacity of 65 acre-feet. The dam is regulated by the Oklahoma Water Resources Board (OWRB) and is subject to state inspection and enforcement. Despite its low hazard potential, it has a very high risk assessment rating of 1, indicating potential risks associated with its structure and the surrounding area.
The dam features a controlled spillway and a single valve outlet gate for water management. It serves a primary purpose of "Other" and is designated as a stone-core earth dam with a soil foundation. The surrounding area has a normal storage capacity of 35 acre-feet, with a maximum discharge rate of 5200 cubic feet per second. While the dam's condition is not currently rated, it undergoes inspections every five years to ensure its safety and integrity. Although the dam has not been modified in recent years, its risk management measures and emergency preparedness plans are not clearly defined, highlighting the importance of continued monitoring and maintenance to mitigate any potential risks associated with this structure.
Year Completed |
1965 |
Dam Length |
460 |
Dam Height |
18 |
River Or Stream |
TR-CIMARRON RIVER |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
18 |
Nid Storage |
65 |
Structural Height |
18 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cimarron River Near Guthrie
|
453cfs |
Cottonwood Creek Near Seward
|
60cfs |
Skeleton Creek Near Lovell
|
26cfs |
Cimarron River Near Ripley
|
493cfs |
Deep Fork At Warwick
|
25cfs |
North Canadian River At Britton Rd At Okc
|
63cfs |
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.
Oknoname 083011