Oknoname 059042 Reservoir Report
Nearby: Oknoname 059041 Erwin #2
Last Updated: December 20, 2025
Oknoname 059042 is a privately owned earth dam located in Harper, Oklahoma, near the city of EDITH.
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Summary
Completed in 1970, this dam on TR-WILLOW CREEK stands at a height of 17 feet and stretches 318 feet in length, with a storage capacity of 50 acre-feet. The dam is designed for purposes other than flood control, with a spillway type of Controlled and a hazard potential rated as low.
Despite being owned privately, Oknoname 059042 is regulated by the Oklahoma Water Resources Board (OWRB) and is subject to state permitting, inspection, and enforcement. The dam has not been rated for its condition assessment, but it has a high risk assessment rating of Very High (1). Emergency action plans (EAP) and inundation maps are not currently prepared or updated for this dam, but it meets state jurisdiction requirements and has a valve outlet gate for water release.
Water resource and climate enthusiasts may find Oknoname 059042 an intriguing structure to study due to its unique design and location in Oklahoma. The dam's association with TR-WILLOW CREEK and the Tulsa District of the US Army Corps of Engineers adds to its significance in the region. With a low hazard potential and a high risk assessment, further research and monitoring of this dam could provide valuable insights into water management and safety measures for similar structures.
Year Completed |
1970 |
Dam Length |
318 |
Dam Height |
17 |
River Or Stream |
TR-WILLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
17 |
Nid Storage |
50 |
Structural Height |
17 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
17 |
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 059042