Oknoname 111075 Reservoir Report
Last Updated: January 12, 2026
Oknoname 111075 is a privately owned dam located in Okmulgee, Oklahoma, along the TR-GRAVE CREEK.
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Summary
The dam stands at a height of 35 feet and stretches 3790 feet in length, with a storage capacity of 700 acre-feet. Completed in 1950, the dam serves a primary purpose of "Other" and is classified as an Earth dam with a Stone core and Soil foundation.
Despite being classified as having a low hazard potential, Oknoname 111075 is considered to have a very high risk level due to its condition not being rated. The last inspection of the dam was conducted in August 2011, with an inspection frequency of 5 years. The dam features a controlled spillway and a single valve outlet gate. The risk management measures and emergency action plans for the dam are not specified in the available data.
Overall, Oknoname 111075 presents an intriguing case for water resource and climate enthusiasts, with its location in a significant waterway and the potential risks associated with its current condition. The dam's history, design, and maintenance practices offer valuable insights into the complexities of managing water infrastructure in the face of evolving environmental challenges.
Year Completed |
1950 |
Dam Length |
3790 |
Dam Height |
35 |
River Or Stream |
TR-GRAVE CREEK |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
35 |
Nid Storage |
700 |
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.
Oknoname 111075