Oknoname 111084 Reservoir Report
Nearby: Oknoname 111082 Oknoname 111085
Last Updated: December 5, 2025
Oknoname 111084, located in Okmulgee, Oklahoma, is a privately owned dam on TR-NEGRO CREEK with a height of 28 feet and a length of 3150 feet.
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Summary
Built in 1960, it serves a primary purpose of "Other" and is classified as an Earth dam with a Stone core and Soil foundation. The dam has a storage capacity of 60 acre-feet and a maximum discharge of 2940 cubic feet per second, with a controlled spillway and one outlet valve.
Despite being rated as having a low hazard potential and not yet assessed for condition, Oknoname 111084 is recognized for its very high risk level by the Oklahoma Water Resources Board. The dam is subject to state regulation, permitting, inspection, and enforcement, ensuring its safety and compliance with guidelines. The last inspection was conducted in August 2011, with a frequency of every 5 years, highlighting the importance of regular monitoring and maintenance for this essential infrastructure.
Represented by Congressman Markwayne Mullin, Oknoname 111084 stands as a critical part of the local water resource management system, providing valuable storage and flood control benefits. As climate change continues to impact water availability and extreme weather events, the proper management and maintenance of dams like Oknoname 111084 become increasingly crucial in ensuring the resilience and sustainability of water resources in the region.
Year Completed |
1960 |
Dam Length |
3150 |
Dam Height |
28 |
River Or Stream |
TR-NEGRO CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
28 |
Nid Storage |
60 |
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.
Oknoname 111084