Merrifield Bros Reservoir Report
Nearby: C C Bledsoe Pawhuska Lake Dam
Last Updated: December 16, 2025
Merrifield Bros is a privately owned recreational dam located in Osage, Oklahoma, that was completed in 1966 by the USDA NRCS.
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Summary
The dam, primarily designed for recreation, stands at a height of 40 feet and has a storage capacity of 261 acre-feet. With a surface area of 20 acres, Merrifield Bros is a popular spot for outdoor activities and relaxation.
Despite being classified as having a low hazard potential, Merrifield Bros is considered to have a moderate risk level. While the dam has not been rated for its condition, it meets the guidelines for emergency action plans. The presence of an uncontrolled spillway and the lack of regular inspections may present challenges in managing potential risks associated with the dam.
As water resource and climate enthusiasts, the Merrifield Bros dam serves as an interesting case study in recreational dam infrastructure. With its modest size and capacity, the dam provides a valuable recreational resource while also highlighting the importance of ongoing monitoring and maintenance to ensure the safety and sustainability of such structures in the face of changing environmental conditions.
Year Completed |
1966 |
Dam Height |
40 |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
40 |
Nid Storage |
261 |
Hazard Potential |
Low |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Hominy Creek Near Hominy
|
2cfs |
Arkansas River At Ralston
|
4230cfs |
Bird Creek At Avant
|
7cfs |
Caney River Above Coon Creek At Bartlesville
|
66cfs |
Caney R Nr Elgin
|
33cfs |
Black Bear Creek At Pawnee
|
12cfs |
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.
Merrifield Bros