Pinkston Wr Reservoir Report
Nearby: Oknoname 111040 Oknoname 111041
Last Updated: December 5, 2025
Pinkston Wr is a private water resource located in Henryetta, Oklahoma, along the TR-COAL CREEK river.
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Summary
Built in 1940, this earth dam stands at 35 feet tall and spans 3350 feet in length, with a storage capacity of 80 acre-feet. The dam is regulated by the Oklahoma Water Resources Board and undergoes regular inspections and enforcement measures to ensure its structural integrity.
Despite its low hazard potential, Pinkston Wr is classified as a very high risk due to its location and potential impact on the surrounding area. The dam features a controlled spillway and a single valve outlet gate for water management. While the condition of the dam is not currently rated, it is subject to a five-year inspection frequency to monitor any changes and ensure public safety in the event of an emergency.
Enthusiasts interested in water resources and climate will find Pinkston Wr to be an intriguing case study in dam management and regulation. With its historical significance and ongoing monitoring efforts, this private dam serves as a vital component of the local water infrastructure in Okmulgee County, Oklahoma.
Year Completed |
1940 |
Dam Length |
3350 |
Dam Height |
35 |
River Or Stream |
TR-COAL CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
35 |
Nid Storage |
80 |
Structural Height |
35 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
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.
Pinkston Wr