Foster Reservoir Report
Nearby: Anderson #10 Anderson #8
Last Updated: January 12, 2026
Located in Harper County, Oklahoma, the Foster dam is a private earth dam with a height of 27 feet, serving as a crucial water resource in the region.
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Summary
Managed by the USDA NRCS, this structure has a storage capacity of 25 acre-feet and a spillway type of "Uncontrolled." Despite its low hazard potential, the dam is considered to have a moderate risk level, with a risk assessment rating of 3.
While the dam's condition is currently listed as "Not Rated," it is important to note that the last inspection date and assessment date are unknown. With no state regulation or permitting required for this structure, it is essential for the owners to ensure regular maintenance and monitoring to uphold its safety and functionality. As climate change continues to impact water resources, enthusiasts in the field of water resource management and climate adaptation should keep a close eye on structures like Foster to ensure their resilience in the face of changing environmental conditions.
Dam Height |
27 |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
25 |
Hazard Potential |
Low |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Canadian River At Woodward
|
80cfs |
Cimarron River Near Buffalo
|
75cfs |
Cimarron River Near Waynoka
|
150cfs |
Cimarron R Near Buttermilk
|
47cfs |
Bluff Creek Nr Buttermilk
|
42cfs |
North Canadian River Near Seiling
|
105cfs |
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.
Foster