Oknoname 059041 Reservoir Report
Nearby: Oknoname 059042 Erwin #2
Last Updated: December 20, 2025
Oknoname 059041 is a privately owned dam located in Harper, Oklahoma, with a primary purpose classified as "Other".
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Summary
Completed in 1965, this Earth-type dam stands at a height of 22 feet and has a length of 370 feet, offering a storage capacity of 60 acre-feet. The dam, situated on TR-WILLOW CREEK, falls under the regulatory authority of the OWRB, with state jurisdiction and permitting in place.
With a low hazard potential and a very high risk assessment rating, this dam features a controlled spillway and a single valve outlet gate. Despite not having a condition assessment rating, the dam has undergone inspections, with the last one conducted in August 2011. The surrounding area boasts a surface area of 4 acres, providing vital water resource management in the region. Overall, Oknoname 059041 plays a crucial role in water storage and management within the Tulsa District of Oklahoma.
Water and climate enthusiasts will appreciate the significance of Oknoname 059041 in supporting water resource infrastructure and mitigating potential risks. As a privately owned structure, this dam contributes to the overall water management system of the area, with a focus on ensuring regulatory compliance and operational efficiency. The dam's strategic location in Harper, Oklahoma, along with its design specifications and storage capacity, underscores its importance in maintaining water security and resilience in the face of changing environmental conditions.
Year Completed |
1965 |
Dam Length |
370 |
Dam Height |
22 |
River Or Stream |
TR-WILLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
22 |
Nid Storage |
60 |
Structural Height |
22 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cimarron R Near Buttermilk
|
44cfs |
Bluff Creek Nr Buttermilk
|
39cfs |
Cimarron River Near Buffalo
|
75cfs |
Crooked C Nr Englewood
|
7cfs |
North Canadian River At Woodward
|
68cfs |
Cimarron River Near Forgan
|
20cfs |
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 059041