Scs-Whitegrass-Waterhole Cr Site-9 Reservoir Report
Last Updated: December 5, 2025
SCS-Whitegrass-Waterhole Cr Site-9, located in McCurtain, Oklahoma, is a privately owned dam designed by the USDA NRCS for flood risk reduction on Waterhole Creek.
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Summary
Completed in 1960, this earth dam stands at a height of 28 feet and stretches 1650 feet in length, with a storage capacity of 1186 acre-feet. The dam's primary purpose is flood risk reduction, and it is regulated, permitted, inspected, and enforced by the Oklahoma Water Resources Board.
Despite being classified as having a low hazard potential, SCS-Whitegrass-Waterhole Cr Site-9 is considered to have a very high risk level based on a rating of 1. The dam features a controlled spillway and a single valve outlet gate, with a maximum discharge capacity of 2170 cubic feet per second. With its stone core and soil foundation, this dam plays a crucial role in managing water levels and protecting the surrounding area from potential flooding events. While the condition assessment is currently not rated, the dam undergoes inspections every 5 years to ensure its structural integrity and functionality.
Water resource and climate enthusiasts will find SCS-Whitegrass-Waterhole Cr Site-9 to be a fascinating example of how infrastructure can be engineered to mitigate the risks of flooding in a region prone to water-related challenges. The dam's construction and design by the USDA NRCS, along with its regulatory oversight by the Oklahoma Water Resources Board, showcase a collaborative effort to manage water resources effectively. As concerns about climate change and extreme weather events continue to grow, the importance of maintaining and monitoring dams like SCS-Whitegrass-Waterhole Cr Site-9 becomes increasingly crucial in safeguarding communities and ecosystems from the impacts of flooding.
Year Completed |
1960 |
Dam Length |
1650 |
Dam Height |
28 |
River Or Stream |
WATERHOLE CR |
Primary Dam Type |
Earth |
Surface Area |
23 |
Hydraulic Height |
28 |
Nid Storage |
1186 |
Structural Height |
28 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little River Blw Lukfata Creek
|
572cfs |
Glover River Near Glover
|
342cfs |
Red River Near De Kalb
|
1160cfs |
Mountain Fork Near Eagletown
|
2040cfs |
Cuthand Ck At Fm 910 Nr Cuthand
|
0cfs |
Little River Near Horatio
|
3450cfs |
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-Whitegrass-Waterhole Cr Site-9