Henderson Reservoir Report
Last Updated: December 19, 2025
Henderson Lake in Eagletown, Oklahoma, is a private irrigation reservoir that was completed in 1930.
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Summary
With a dam height of 25 feet and a storage capacity of 123 acre-feet, it serves as a crucial water source for agricultural purposes in the region. The dam is primarily made of earth and stone materials, with a controlled spillway and a single valve outlet gate.
Managed by the Oklahoma Water Resources Board (OWRB), Henderson Lake is regulated and inspected by state authorities to ensure its safety and functionality. Despite being rated as having a low hazard potential, the reservoir is considered to have a very high risk due to its age and lack of recent condition assessments. It is located on Pero Creek in McCurtain County, providing water for irrigation to the surrounding area.
Although Henderson Lake has not been modified in recent years and its condition is not currently rated, its importance as an irrigation resource cannot be understated. With a maximum discharge capacity of 3100 cubic feet per second, this reservoir plays a crucial role in supporting agricultural activities in the region. As climate change continues to impact water resources, the maintenance and management of structures like Henderson Lake will be essential in ensuring sustainable water access for future generations.
Year Completed |
1930 |
Dam Length |
750 |
Dam Height |
25 |
River Or Stream |
PERO CR |
Primary Dam Type |
Earth |
Hydraulic Height |
22 |
Nid Storage |
123 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Mountain Fork Near Eagletown
|
555cfs |
Little River Near Horatio
|
608cfs |
Mountain Fork At Smithville
|
10cfs |
Cossatot River Near Vandervoort
|
36cfs |
Little River Blw Lukfata Creek
|
177cfs |
Glover River Near Glover
|
51cfs |
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.
Henderson