Hettick No.3 Reservoir Report
Nearby: Pauls Valley Oknoname 049006
Last Updated: December 17, 2025
Hettick No.3 is a privately owned earth dam located in Pauls Valley, Oklahoma, along the TR-Washita River.
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Summary
Designed by the USDA NRCS and completed in 1978, this dam serves multiple purposes and is regulated by the Oklahoma Water Resources Board. With a height of 28 feet and a length of 200 feet, it has a storage capacity of 50 acre-feet and a controlled spillway width of 1 foot. The dam's hazard potential is rated as low, with a very high risk assessment score of 1.
Despite not being federally owned or funded, Hettick No.3 is subject to state permitting, inspection, and enforcement. Its primary purpose is categorized as "Other," with a core type of stone and a foundation of soil. The dam features a single valve outlet gate and has not undergone any modifications in recent years. While the dam's condition assessment is currently not rated, it is inspected every 5 years for maintenance and safety purposes. Overall, Hettick No.3 presents an intriguing case study for water resource and climate enthusiasts interested in dam infrastructure and risk management in the state of Oklahoma.
Year Completed |
1978 |
Dam Length |
200 |
Dam Height |
28 |
River Or Stream |
TR-WASHITA RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
50 |
Structural Height |
28 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
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.
Hettick No.3