Scs-Okfuskee Tributaries Site-H05 Reservoir Report
Last Updated: December 8, 2025
Located in Okfuskee County, Oklahoma, the SCS-Okfuskee Tributaries Site-H05 is a state-regulated earth dam designed by USDA NRCS to mitigate flood risk along TR-Hilliby Creek.
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Summary
Completed in 1973, this dam stands at a height of 25 feet and has a length of 1000 feet, with a storage capacity of 213 acre-feet. The dam's primary purpose is flood risk reduction, with a spillway width of 1 foot and a maximum discharge capacity of 320 cubic feet per second.
Despite being categorized as a low hazard potential structure, the SCS-Okfuskee Tributaries Site-H05 poses a very high risk in terms of its flood management capabilities. With a condition assessment that is currently not rated, the dam's last inspection dates back to 1980, highlighting the need for regular monitoring and maintenance. While the dam has not been modified in recent years, it is equipped with a valve outlet gate for controlled water release.
In the event of an emergency, it is crucial that a comprehensive Emergency Action Plan (EAP) is prepared and regularly updated to meet safety guidelines and ensure effective risk management measures are in place. With its strategic location and critical role in flood risk reduction along TR-Hilliby Creek, the SCS-Okfuskee Tributaries Site-H05 serves as a vital infrastructure for water resource and climate enthusiasts to monitor and support in safeguarding the surrounding communities from potential flooding hazards.
Year Completed |
1973 |
Dam Length |
1000 |
Dam Height |
25 |
River Or Stream |
TR-HILLIBY CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
25 |
Nid Storage |
213 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Canadian River At Shawnee
|
166cfs |
North Canadian River Near Wetumka
|
200cfs |
Deep Fork At Warwick
|
23cfs |
Deep Fork Near Beggs
|
128cfs |
Little River Near Tecumseh
|
7cfs |
North Canadian River Near Harrah
|
123cfs |
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-H05