Lonnie Haggard Reservoir Report
Last Updated: December 6, 2025
Lonnie Haggard is a privately owned earth dam located in Custer, Oklahoma, with a height of 26 feet and a length of 336 feet.
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Summary
Built in 1975 by the USDA NRCS, this dam serves the purpose of storing water for various uses, with a maximum storage capacity of 42 acre-feet and a normal storage of 8 acre-feet. The dam covers a surface area of 2 acres and has a drainage area of 0.25 square miles, helping to manage water flow in the region.
Despite being classified as having a low hazard potential, Lonnie Haggard is considered to have a moderate risk level, with a risk assessment rating of 3 out of 5. The spillway of the dam is uncontrolled, with a width of 18 feet, and it has a maximum discharge capacity of 312 cubic feet per second. While the dam is not currently regulated by the state or federal agencies, it has not undergone a recent condition assessment and is labeled as "Not Rated". With its location in the NE1/4 S16 T15 R18 of Custer County, Oklahoma, Lonnie Haggard plays a crucial role in water resource management in the area.
Overall, Lonnie Haggard is a vital infrastructure designed to support water resource management in Oklahoma. With its construction overseen by the Natural Resources Conservation Service, this earth dam continues to fulfill its purpose of storing water for various uses while also mitigating potential risks associated with its operation. As a key component of the local water infrastructure, Lonnie Haggard highlights the importance of maintaining and monitoring dams to ensure their continued safety and effectiveness in the face of changing climate conditions.
Year Completed |
1975 |
Dam Length |
336 |
Dam Height |
26 |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
26 |
Drainage Area |
0.25 |
Nid Storage |
42 |
Hazard Potential |
Low |
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.
Lonnie Haggard