Oknoname 30242 Reservoir Report
Last Updated: December 17, 2025
Oknoname 30242 is a privately owned dam located in Logan County, Oklahoma, near the city of Guthrie.
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Summary
Designed by the USDA NRCS, this dam is regulated by the Oklahoma Water Resources Board and is subject to state permitting, inspection, and enforcement. The primary purpose of Oknoname 30242 is classified as "Other," with a core structure consisting of buttress and stone components. This dam stands at a height of 27 feet with a hydraulic height of 23.9 feet and a structural height of 30.9 feet. It has a storage capacity of 156.7 acre-feet and a surface area of 8.23 acres, serving the drainage area of 1.48 square miles.
The spillway of Oknoname 30242 is of the controlled type, with a width of 1 foot. Despite its low hazard potential, this dam is categorized with a very high risk assessment rating of 1. While the condition assessment is currently marked as "Not Rated," the inspection frequency is set at 5 years. The dam has not been modified in recent years, and no emergency action plan (EAP) has been prepared or updated. Although the risk management measures for Oknoname 30242 are not specified, the dam is not under the jurisdiction of the US Army Corps of Engineers.
Overall, Oknoname 30242 presents an intriguing case for water resource and climate enthusiasts, showcasing the intricate regulatory framework and structural design of a privately owned dam in Oklahoma. With its unique core composition and storage capacity, this dam serves as a vital infrastructure for managing water resources in the region. The high risk assessment rating and lack of a current condition assessment highlight the importance of regular inspections and potential risk mitigation strategies for the continued safety and functionality of Oknoname 30242.
Dam Length |
600 |
Dam Height |
27 |
River Or Stream |
TRIB TO CIMARRON RIVER |
Surface Area |
8.23 |
Hydraulic Height |
23.9 |
Drainage Area |
1.48 |
Nid Storage |
156.7 |
Structural Height |
30.9 |
Hazard Potential |
Low |
Nid Height |
31 |
Seasonal Comparison
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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 30242