Anderson #8 Reservoir Report
Nearby: Anderson #7 Anderson #6
Last Updated: December 15, 2025
Anderson #8 is a private dam located in Harper County, Oklahoma, near the city of Woodward.
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Summary
Built in 1960 by the USDA NRCS, this earth dam serves multiple purposes, including fire protection, stock, and small fish pond management. It spans 92 feet in length and stands at a height of 36 feet, with a storage capacity of 29 acre-feet and a surface area of 2 acres.
Situated on Traders Creek, Anderson #8 is classified as having a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. Despite its moderate risk level, the dam has not been inspected recently, and there are no emergency action plans in place. The spillway, which is uncontrolled, has a width of 50 feet. Overall, Anderson #8 remains an important structure for water resource management in the region, with a moderate level of risk that requires ongoing monitoring and maintenance to ensure its safety and effectiveness for the surrounding community.
Year Completed |
1960 |
Dam Length |
92 |
Dam Height |
36 |
River Or Stream |
TRADERS CREEK |
Surface Area |
2 |
Hydraulic Height |
36 |
Drainage Area |
0.17 |
Nid Storage |
29 |
Hazard Potential |
Low |
Nid Height |
36 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Canadian River At Woodward
|
68cfs |
Cimarron River Near Buffalo
|
75cfs |
Cimarron River Near Waynoka
|
118cfs |
Cimarron R Near Buttermilk
|
44cfs |
Bluff Creek Nr Buttermilk
|
40cfs |
North Canadian River Near Seiling
|
102cfs |
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 #8