Scs-Quapaw Creek Site-40 Reservoir Report
Last Updated: December 8, 2025
SCS-Quapaw Creek Site-40 is a state-regulated dam located in Lincoln, Oklahoma, along the Clear Creek.
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Summary
Built in 1975 by USDA NRCS, this earth dam stands at a height of 37 feet and a length of 1100 feet, serving primarily for flood risk reduction. With a storage capacity of 462 acre-feet, the dam has a controlled spillway and is equipped with a single valve outlet gate. Despite being rated as having low hazard potential, the risk assessment for SCS-Quapaw Creek Site-40 indicates a very high risk level.
The dam's hydraulic and structural height both measure at 37 feet, with a normal storage capacity of 53 acre-feet. The surrounding area covers 21 acres, providing protection to the local community in Sparks. The dam is inspected every 5 years, with the last assessment conducted in 1980. Although the condition assessment is currently listed as "Not Rated," the risk management measures and emergency action plans for the dam are not updated.
Overall, SCS-Quapaw Creek Site-40 plays a crucial role in mitigating flood risks in the region, supported by the state regulatory agency OWRB. With its strategic location and design features, this dam remains a key infrastructure for water resource management in Lincoln, Oklahoma. The risk level associated with the dam underscores the importance of ongoing monitoring and maintenance to ensure its continued effectiveness in protecting the local community and surrounding areas from potential flood events.
Year Completed |
1975 |
Dam Length |
1100 |
Dam Height |
37 |
River Or Stream |
CLEAR CREEK |
Primary Dam Type |
Earth |
Surface Area |
21 |
Hydraulic Height |
37 |
Nid Storage |
462 |
Structural Height |
37 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
37 |
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-Quapaw Creek Site-40