Phillips Lake Reservoir Report
Nearby: Thurman Lake Robertson Dam
Last Updated: December 19, 2025
Phillips Lake, located in Beckham County, Oklahoma, is a privately owned reservoir with a primary purpose classified as "Other." The earth dam, completed in 1967, stands at a height of 27 feet and has a hydraulic height of 22 feet.
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Summary
With a maximum storage capacity of 89 acre-feet and a normal storage capacity of 73 acre-feet, the lake covers a surface area of 5 acres and is fed by TR-STARVATION CREEK.
Managed by the Oklahoma Water Resources Board (OWRB), Phillips Lake is subject to state regulations, permitting, inspection, and enforcement. Despite being classified as having a low hazard potential, the lake is considered to have a very high risk level. The spillway, controlled by a single valve, has a width of 1 foot, and the last inspection of the dam was conducted in November 2010.
While Phillips Lake may not be a prominent water resource on a national scale, its role in managing water resources in the local area is crucial. For water and climate enthusiasts interested in the intricacies of reservoir management and risk assessment, Phillips Lake offers a fascinating case study of a privately owned earth dam with a unique set of characteristics and challenges.
Year Completed |
1967 |
Dam Length |
310 |
Dam Height |
27 |
River Or Stream |
TR-STARVATION CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
22 |
Nid Storage |
89 |
Structural Height |
27 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
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.
Phillips Lake