Harrel Frank Reservoir Report
Last Updated: December 7, 2025
Harrel Frank is a privately-owned earth dam located in Roger Mills County, Oklahoma.
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Summary
Built in 1979 by the USDA NRCS, this dam serves primarily for irrigation purposes, with a storage capacity of 50 acre-feet and a normal storage level of 31 acre-feet. The dam stands at a height of 25 feet and has a controlled spillway with a width of 1 foot. Despite its low hazard potential, the dam is classified as having a very high risk due to its potential impact in the event of a failure.
Managed by the Oklahoma Water Resources Board, Harrel Frank is subject to state regulations and inspections to ensure its structural integrity and safety. The dam has a single valve outlet gate and is located on the TR-QUATERMASTER CR stream. While it has not been rated for its condition, the dam is regularly inspected every 5 years, with the last recorded inspection in November 2010. Despite its risk classification, the dam does not have an Emergency Action Plan in place, highlighting the need for continued monitoring and risk management measures to safeguard surrounding areas from potential flooding events.
Year Completed |
1979 |
Dam Height |
25 |
River Or Stream |
TR-QUATERMASTER CR |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
22 |
Nid Storage |
50 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
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.
Harrel Frank