Scs-Okfuskee Tributaries Site-H07 Reservoir Report
Last Updated: December 8, 2025
Located in Okfuskee, Oklahoma, the SCS-Okfuskee Tributaries Site-H07 is a state-regulated earth dam constructed in 1975 by USDA NRCS for flood risk reduction along the TR-Little Hilliby Creek.
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Summary
With a height of 34 feet and a length of 720 feet, this dam has a storage capacity of 242 acre-feet and a spillway width of 1 foot. Despite being categorized as having low hazard potential, the dam has a very high risk rating due to its structural condition assessment not being rated.
The dam, owned by the state and regulated by OWRB, features a controlled spillway and a single outlet valve. It is designed to manage a maximum discharge of 325 cubic feet per second and serves for flood risk reduction purposes. With a surface area of 6 acres and a normal storage capacity of 23 acre-feet, this dam plays a crucial role in water resource management in the region. However, with its last inspection dating back to 1980 and no recent condition assessment, there are concerns about its ongoing safety and maintenance. For water resource and climate enthusiasts, monitoring and ensuring the safety of dams like the SCS-Okfuskee Tributaries Site-H07 is essential for sustainable water management and disaster prevention in the area.
Year Completed |
1975 |
Dam Length |
720 |
Dam Height |
34 |
River Or Stream |
TR-LITTLE HILLIBY CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
34 |
Nid Storage |
242 |
Structural Height |
34 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Canadian River At Shawnee
|
166cfs |
Deep Fork At Warwick
|
23cfs |
North Canadian River Near Wetumka
|
200cfs |
Deep Fork Near Beggs
|
128cfs |
Little River Near Tecumseh
|
7cfs |
Cimarron River Near Ripley
|
528cfs |
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-H07