Kelly Bros Reservoir Report
Last Updated: December 6, 2025
Kelly Bros is a private dam located in Nuyaka, Oklahoma, along the TR-Hopper Creek.
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Summary
Built in 1960, this earth dam stands at a height of 45 feet and has a length of 800 feet, providing a storage capacity of 270 acre-feet. The dam is regulated by the Oklahoma Water Resources Board (OWRB) and undergoes regular inspections, with a low hazard potential rating.
Despite its low hazard potential, Kelly Bros is considered to have a very high risk assessment of 1, indicating the need for heightened risk management measures. The dam has one valve outlet gate and a controlled spillway with a width of 1 foot. Even though the condition of the dam is currently not rated, it is inspected every 5 years for any maintenance or safety issues. The surrounding area is at risk of inundation in case of a breach, emphasizing the importance of proper risk assessment and management for this water resource.
For water resource and climate enthusiasts, Kelly Bros presents an intriguing case study in dam infrastructure management. With its unique design features and state-mandated regulations, this private dam serves as a focal point for understanding the intersection of human-built structures and natural water systems. The data on Kelly Bros sheds light on the complexities of maintaining and monitoring dams in a changing climate, highlighting the need for proactive risk assessment and management strategies to safeguard both the dam and the surrounding environment.
Year Completed |
1960 |
Dam Length |
800 |
Dam Height |
45 |
River Or Stream |
TR-HOPPER CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
45 |
Nid Storage |
270 |
Structural Height |
45 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
45 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Kelly Bros