Thurman Lake Reservoir Report
Nearby: Phillips Lake Robertson Dam
Last Updated: December 19, 2025
Thurman Lake, located in Beckham County, Oklahoma, is a privately-owned reservoir primarily used for irrigation purposes.
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Summary
Completed in 1970, the earth dam stands at a height of 38 feet and has a storage capacity of 276 acre-feet. The lake is situated on TR-STARVATION CREEK and is under the regulatory jurisdiction of the Oklahoma Water Resources Board.
With a low hazard potential and a very high risk assessment rating, Thurman Lake has not been officially rated for its condition assessment. The controlled spillway with a width of 2 feet helps manage water discharge, while the single valve outlet gate controls water release from the reservoir. The last inspection of the dam was conducted in November 2010, with a scheduled inspection frequency of every 5 years.
Despite the lack of recent data on the condition assessment and emergency action plan status, Thurman Lake remains a crucial water resource for the surrounding agricultural community. Water resource and climate enthusiasts interested in the management and sustainability of reservoirs in Oklahoma may find Thurman Lake to be a fascinating case study in the intersection of water infrastructure, regulatory oversight, and risk assessment in the face of changing environmental conditions.
Year Completed |
1970 |
Dam Length |
700 |
Dam Height |
38 |
River Or Stream |
TR-STARVATION CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
34 |
Nid Storage |
276 |
Structural Height |
38 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
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.
Thurman Lake