Scs-Maysville Laterals Site-H06 Reservoir Report
Last Updated: December 8, 2025
SCS-Maysville Laterals Site-H06 is a state-regulated dam located in Garvin County, Oklahoma, along Happy Hollow Creek.
°F
°F
mph
Wind
%
Humidity
Summary
Constructed in 1972 by the USDA NRCS, this earth dam stands at a height of 31 feet and has a length of 790 feet. Its primary purpose is flood risk reduction, with a maximum storage capacity of 164 acre-feet and a normal storage of 29 acre-feet. The dam has a controlled spillway and an outlet gate for water release.
Despite being rated as having a low hazard potential, the dam's risk assessment is categorized as very high (1), indicating a need for heightened awareness and management measures. The condition of the dam is currently not rated, with the last inspection date recorded as January 1, 1980. With a designated inspection frequency of 5 years, there is a recommendation for further assessment and potential updates to emergency action plans and risk mitigation strategies to ensure the safety and integrity of the structure.
For water resource and climate enthusiasts, SCS-Maysville Laterals Site-H06 presents an intriguing case study in dam infrastructure and risk management. As a vital component in flood risk reduction along Happy Hollow Creek, this earth dam serves as a crucial asset in water resource management in the region. With a focus on safety and regulatory compliance, ongoing assessments and updates are essential to address the identified high risk potential and ensure the continued effectiveness of the structure in mitigating flood hazards.
Year Completed |
1972 |
Dam Length |
790 |
Dam Height |
31 |
River Or Stream |
HAPPY HOLLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
31 |
Nid Storage |
164 |
Structural Height |
31 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Criner Creek Near Criner
|
1cfs |
Washita River At Alex
|
241cfs |
Washita River Near Pauls Valley
|
335cfs |
Walnut Creek At Purcell
|
29cfs |
Canadian River At Purcell
|
208cfs |
Little Washita River East Of Ninnekah
|
18cfs |
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-Maysville Laterals Site-H06