Dunegan Lake Reservoir Report
Nearby: Musgrove Lake Edwards
Last Updated: December 5, 2025
Dunegan Lake, located in Bryan County, Oklahoma, is a privately owned irrigation reservoir built in 1972 by the USDA NRCS.
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Summary
The earth dam stands at 26 feet tall and spans 489 feet in length, providing a storage capacity of 79 acre-feet. Despite its low hazard potential, the reservoir has a very high risk assessment ranking, indicating the need for careful management and monitoring.
Managed by the Natural Resources Conservation Service, Dunegan Lake serves the primary purpose of irrigation and is regulated by the Oklahoma Water Resources Board. The controlled spillway, with a width of 1 foot, can handle a maximum discharge of 215 cubic feet per second. The reservoir covers an area of 11 acres and is situated near the TR-TUKLO CR river/stream in Springhill Cemetery.
Although the condition of Dunegan Lake has not been officially rated, the last inspection in 1999 revealed no immediate concerns. With a history of satisfactory performance, this reservoir provides vital water resources for agricultural purposes in the region while also serving as a potential source of recreational activities for climate enthusiasts in Oklahoma.
Year Completed |
1972 |
Dam Length |
489 |
Dam Height |
26 |
River Or Stream |
TR-TUKLO CR |
Primary Dam Type |
Earth |
Surface Area |
11 |
Hydraulic Height |
24 |
Nid Storage |
79 |
Structural Height |
26 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
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.
Dunegan Lake