Anderson Lake Reservoir Report
Nearby: Mattingly No 2 Troy Mattingly
Last Updated: December 6, 2025
Anderson Lake, located in Bryan County, Oklahoma, is a privately owned reservoir primarily used for irrigation purposes.
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Summary
The dam, completed in 1968, is an earth structure with a height of 18 feet and a storage capacity of 260 acre-feet. The lake is situated on Long Creek, with a controlled spillway and a maximum discharge of 4836 cubic feet per second.
Despite being classified as having a low hazard potential, Anderson Lake is considered to have a very high risk due to its location and design features. The dam has not been rated for its condition, with the last inspection conducted in 2006. The emergency action plan for the reservoir is not up to date, and there are no inundation maps prepared, raising concerns about the readiness for potential incidents.
Overall, Anderson Lake serves as a critical water resource in the region, supporting irrigation activities and water supply. However, there is a pressing need for updated safety measures and risk management strategies to ensure the continued reliability and resilience of the dam in the face of potential climate challenges and emergencies.
Year Completed |
1968 |
Dam Length |
915 |
Dam Height |
18 |
River Or Stream |
LONG CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
14 |
Nid Storage |
260 |
Structural Height |
18 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
18 |
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.
Anderson Lake