Oknoname 111040 Reservoir Report
Nearby: Oknoname 111041 Pinkston Wr
Last Updated: December 5, 2025
Oknoname 111040, a privately-owned dam located in Okmulgee, Oklahoma, stands as a testament to the state's commitment to water resource management.
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Summary
Built in 1940, this Earth dam on TR-COAL CREEK serves a primary purpose classified as 'Other', with a maximum storage capacity of 50 acre-feet. The dam, standing at a height of 35 feet and stretching 3300 feet in length, plays a crucial role in flood control and water conservation efforts in the area.
Managed by the Oklahoma Water Resources Board (OWRB), Oknoname 111040 has been designated as a 'Low' hazard potential structure, with a very high risk assessment rating of 1. Despite its age, the dam's condition assessment remains 'Not Rated', indicating the need for regular inspections and maintenance procedures to ensure its structural integrity. With a controlled spillway and a single valve outlet gate, the dam's regulatory compliance and enforcement by the state are a testament to the commitment towards ensuring public safety and environmental protection.
In the event of an emergency, the dam's Emergency Action Plan (EAP) status and risk management measures remain undisclosed, highlighting the need for consistent updates and adherence to guidelines. With the potential to impact the surrounding community and environment, Oknoname 111040 serves as a critical infrastructure requiring diligent oversight and proactive measures to mitigate risks and safeguard water resources in the region.
Year Completed |
1940 |
Dam Length |
3300 |
Dam Height |
35 |
River Or Stream |
TR-COAL CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
35 |
Nid Storage |
50 |
Structural Height |
35 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
Seasonal Comparison
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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.
Oknoname 111040