Holdenville City Lake Reservoir Report
Nearby: Peters Lynn Holdenville Waterworks
Last Updated: December 6, 2025
Holdenville City Lake, also known as New Holdenville Lake, is a local government-owned water supply reservoir located in Calvin, Hughes County, Oklahoma.
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Summary
Built in 1931 and designed by Holloway and Updike, this earth dam stands at a height of 65 feet with a length of 2085 feet, providing a storage capacity of 15,600 acre-feet and a surface area of 550 acres. The primary purpose of the dam is to supply water to the surrounding area, with a normal storage capacity of 11,000 acre-feet.
Managed by the Oklahoma Water Resources Board, Holdenville City Lake is state-regulated, inspected, and enforced, ensuring its safety and compliance with regulations. The dam has a high hazard potential and a fair condition assessment, with a risk assessment rating of very high. Additionally, the spillway is of the controlled type with a width of 4 feet. The reservoir is fed by the TR-Little River and has a maximum discharge of 11,000 cubic feet per second, serving as a vital water resource for the region.
For water resource and climate enthusiasts, Holdenville City Lake presents a fascinating case study of a historic earth dam that continues to play a crucial role in water supply management. With its picturesque location and significant storage capacity, this reservoir serves as a testament to the importance of sustainable water infrastructure in addressing the challenges of climate change and ensuring water security for local communities. As efforts continue to monitor and maintain the dam's integrity, Holdenville City Lake remains a key asset in the region's water resource management strategy.
Year Completed |
1931 |
Dam Length |
2085 |
Dam Height |
65 |
River Or Stream |
TR-LITTLE RIVER |
Primary Dam Type |
Earth |
Surface Area |
550 |
Hydraulic Height |
65 |
Drainage Area |
9.5 |
Nid Storage |
15600 |
Structural Height |
65 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
65 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Canadian River At Calvin
|
361cfs |
Little River Near Sasakwa
|
12cfs |
North Canadian River Near Wetumka
|
209cfs |
Little River Near Tecumseh
|
8cfs |
North Canadian River At Shawnee
|
177cfs |
Blue River Near Connerville
|
54cfs |
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.
Holdenville City Lake