Scs-Okfuskee Tributaries Site-N10 Reservoir Report
Nearby: Oknoname 107011 Gormly Alger
Last Updated: December 15, 2025
Located in Okfuskee, Oklahoma, the SCS-Okfuskee Tributaries Site-N10 is a state-regulated dam designed by the USDA NRCS for flood risk reduction along the TR-NUYAKA CR river.
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Summary
Completed in 1978, this earth dam stands at a height of 31 feet and has a length of 1000 feet, providing a normal storage capacity of 63 acre-feet and a maximum storage of 555 acre-feet. With a controlled spillway and one valve outlet gate, the dam is classified as having a low hazard potential and a very high risk assessment.
Despite its age, the SCS-Okfuskee Tributaries Site-N10 has not been rated for its condition assessment, with the last inspection conducted in 1980. While it meets state permitting, inspection, and enforcement requirements, the dam's emergency action plan (EAP) status is unclear, and it does not have inundation maps prepared or updated emergency contacts. As climate change continues to impact water resources and create more intense rainfall events, the risk management measures for this dam may need to be reevaluated to ensure its effectiveness in protecting the surrounding area from flooding.
Year Completed |
1978 |
Dam Length |
1000 |
Dam Height |
31 |
River Or Stream |
TR-NUYAKA CR |
Primary Dam Type |
Earth |
Surface Area |
14 |
Hydraulic Height |
31 |
Nid Storage |
555 |
Structural Height |
31 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
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.
Scs-Okfuskee Tributaries Site-N10