Scs-Okmulgee Creek Site-1 Reservoir Report
Last Updated: December 5, 2025
SCS-Okmulgee Creek Site-1 is a state-regulated earth dam located in Okmulgee, Oklahoma, along the Okmulgee Creek.
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Summary
Built in 1966 by the USDA NRCS, this dam stands at a height of 34 feet and spans a length of 5876 feet, with a storage capacity of 11,100 acre-feet. Its primary purpose is flood risk reduction, serving as a crucial structure to manage water flow and protect the surrounding area from potential inundation.
With a high hazard potential and a fair condition assessment, SCS-Okmulgee Creek Site-1 is regularly inspected by the state regulatory agency, OWRB, to ensure its structural integrity is maintained. This dam also features a controlled spillway and a slide gate as its outlet system. Despite its age, the dam continues to play a significant role in managing water resources in the region, with a very high risk assessment rating of 1, highlighting its importance in mitigating flood risks and ensuring water security for the community.
As a key component of flood risk reduction efforts in the area, SCS-Okmulgee Creek Site-1 serves as a vital infrastructure designed to protect against potential flooding events and ensure the safety of the surrounding environment. With its strategic location along the Okmulgee Creek and its impressive storage capacity, this dam remains a critical asset in safeguarding water resources and climate resilience in Okmulgee, Oklahoma.
Year Completed |
1966 |
Dam Length |
5876 |
Dam Height |
34 |
River Or Stream |
OKMULGEE CREEK |
Primary Dam Type |
Earth |
Surface Area |
94 |
Hydraulic Height |
34 |
Drainage Area |
10.53 |
Nid Storage |
11100 |
Structural Height |
34 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
34 |
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-Okmulgee Creek Site-1