Scs-Little Washita River Site-34 Reservoir Report
Last Updated: December 6, 2025
SCS-Little Washita River Site-34, located in Grady, Oklahoma, is a state-regulated dam designed by the USDA NRCS for flood risk reduction along the McCarty Creek.
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Summary
Completed in 1973, this 44-foot high earth dam serves a primary purpose of flood risk reduction and has a normal storage capacity of 318 acre-feet. With a low hazard potential and a very high risk assessment rating, this dam plays a crucial role in protecting the surrounding area from potential flooding events.
Owned by the state and regulated by the OWRB, SCS-Little Washita River Site-34 features a controlled spillway, one valve outlet gate, and a stone core foundation. Although it has not been inspected since 1980, this dam is deemed to be in a satisfactory condition and has not been rated for its current condition. Despite its age, the dam continues to provide essential flood protection for the community of Rocky Ford and the surrounding area, highlighting the importance of ongoing monitoring and maintenance to ensure its continued effectiveness in the face of changing climate conditions and water resource management challenges.
As part of the Tulsa District, this dam stands as a testament to the collaborative efforts of state and federal agencies in managing water resources and mitigating flood risks in Oklahoma. With a history of successful operation since its completion nearly 50 years ago, SCS-Little Washita River Site-34 serves as a vital infrastructure asset in safeguarding the local community and ecosystem against the impacts of extreme weather events and shifting climatic conditions.
Year Completed |
1973 |
Dam Length |
1500 |
Dam Height |
44 |
River Or Stream |
MCCARTY CR |
Primary Dam Type |
Earth |
Surface Area |
54 |
Hydraulic Height |
41 |
Nid Storage |
2000 |
Structural Height |
44 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
44 |
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-Little Washita River Site-34
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