Scs-Stillwater Creek Site-56 Reservoir Report
Last Updated: December 7, 2025
SCS-Stillwater Creek Site-56 is a state-regulated dam located in Payne, Oklahoma, designed by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
Completed in 1966, this earth dam stands at a height of 47 feet and spans a length of 840 feet along the TR-STILLWATER CREEK. With a normal storage capacity of 90 acre-feet and a maximum storage of 929 acre-feet, this dam plays a crucial role in managing water flow and reducing flood risks in the area.
Despite its low hazard potential and very high risk assessment rating, SCS-Stillwater Creek Site-56 has not been rated for its condition assessment. The dam features a controlled spillway type with a width of 1 foot and is equipped with one valve outlet gate for water release. While the last inspection dates back to January 1980 with an inspection frequency of 5 years, there is no information available on emergency action plans, inundation maps, or risk management measures for this dam. Overall, SCS-Stillwater Creek Site-56 serves as a vital infrastructure for water resource management and climate resilience in the region.
Located in a picturesque setting in RIPLEY, Oklahoma, this dam stands as a testament to the collaborative efforts of state and federal agencies in ensuring the safety and functionality of water resource infrastructure. With its stone core and soil foundation, SCS-Stillwater Creek Site-56 continues to provide essential flood risk reduction benefits to the local community while also highlighting the importance of ongoing monitoring and maintenance to uphold its operational integrity.
Year Completed |
1966 |
Dam Length |
840 |
Dam Height |
47 |
River Or Stream |
TR-STILLWATER CREEK |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
47 |
Nid Storage |
929 |
Structural Height |
47 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
47 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cimarron River Near Ripley
|
528cfs |
Deep Fork At Warwick
|
23cfs |
Black Bear Creek At Pawnee
|
11cfs |
Cimarron River Near Guthrie
|
483cfs |
Cottonwood Creek Near Seward
|
69cfs |
Arkansas River At Ralston
|
1660cfs |
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.
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