Langston Lake Reservoir Report
Last Updated: December 16, 2025
Langston Lake, located in Langston, Oklahoma, is a state-owned water supply reservoir with a primary purpose of providing water to the surrounding area.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1966 by Collins, Flood & Associates, this earth dam structure stands at a height of 65 feet and has a storage capacity of 7,720 acre-feet. With a surface area of 420 acres and a drainage area of 6 square miles, Langston Lake plays a crucial role in managing water resources in the region.
Despite its fair condition assessment and high hazard potential, Langston Lake continues to serve as a vital water source for the community. The dam features a controlled spillway with a width of 4 feet and a slide gate outlet. With a maximum discharge capacity of 80,080 cubic feet per second, the reservoir is well-equipped to handle potential flood events. Maintained and regulated by the Oklahoma Water Resources Board, Langston Lake remains a key component of the local water infrastructure, ensuring water supply reliability and flood control measures are in place.
As an essential water resource in Logan County, Langston Lake stands as a testament to the importance of sustainable water management practices in the face of changing climate conditions. With a very high risk assessment rating and a designated emergency action plan, the reservoir is prepared to address potential risks and ensure the safety of the surrounding community. Langston Lake serves as a valuable asset in water supply management and environmental stewardship, highlighting the critical role that water resources play in the sustainability of our ecosystems and communities.
Year Completed |
1966 |
Dam Length |
2500 |
Dam Height |
65 |
River Or Stream |
TRIBUTARY TO FITZGERAL CREEK |
Primary Dam Type |
Earth |
Surface Area |
420 |
Hydraulic Height |
64 |
Drainage Area |
6 |
Nid Storage |
7720 |
Structural Height |
65 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
65 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cimarron River Near Guthrie
|
453cfs |
Cottonwood Creek Near Seward
|
60cfs |
Skeleton Creek Near Lovell
|
26cfs |
Cimarron River Near Ripley
|
493cfs |
Deep Fork At Warwick
|
25cfs |
North Canadian River At Britton Rd At Okc
|
63cfs |
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.
Langston Lake