Scs-Sandstone Creek Site-118 Reservoir Report
Last Updated: December 7, 2025
SCS-Sandstone Creek Site-118, located in Roger Mills, Oklahoma, is a state-regulated Earth dam designed by USDA NRCS in 1965 for the primary purpose of flood risk reduction along Wildcat Creek.
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Summary
This 42-foot tall structure with a hydraulic height of 39 feet and a length of 445 feet provides a storage capacity of 130 acre-feet, with a normal storage level of 63 acre-feet. Despite being classified as low hazard potential, it has a very high risk assessment rating due to its age and lack of recent inspection.
The dam features a controlled spillway and a single valve outlet gate for water release. Although it is currently not rated for condition assessment, it is inspected every 5 years, with the last inspection date reported in 1980. The risk management measures and emergency action plans for the site are not updated or meeting guidelines, raising concerns about the potential risks associated with its operation in case of a flood event. With its location in a high-risk area and the outdated information available, there is a need for further evaluation and potential upgrades to ensure the safety and effectiveness of SCS-Sandstone Creek Site-118 in managing floodwaters and protecting the surrounding communities.
Year Completed |
1965 |
Dam Length |
445 |
Dam Height |
42 |
River Or Stream |
WILDCAT CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
39 |
Nid Storage |
130 |
Structural Height |
42 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
42 |
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-Sandstone Creek Site-118