Oknoname 111034 Reservoir Report
Nearby: Oknoname 111036 Oknoname 111032
Last Updated: December 18, 2025
Oknoname 111034 is a privately owned Earth dam located in Okmulgee, Oklahoma, specifically in the city of Henryetta.
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Summary
Completed in 1940, this structure stands at a height of 18 feet and has a storage capacity of 50 acre-feet. It serves multiple purposes and is regulated by the Oklahoma Water Resources Board, with state jurisdiction and permitting in place for inspection and enforcement.
Situated on the TR-Montezuma Creek, this dam has a spillway type of Controlled and is equipped with a single valve outlet gate. Despite its low hazard potential and unassessed condition, the risk assessment categorizes it as having a very high risk level, with a risk score of 1. The dam has not been modified in recent years, and its last inspection date was in August 2011, with a scheduled inspection frequency of every 5 years.
Overall, Oknoname 111034 is a significant structure for water resource management in the region, providing essential storage and flood control measures. With its historical significance and ongoing regulatory oversight, this dam plays a crucial role in maintaining water security and climate resilience in the area.
Year Completed |
1940 |
Dam Length |
3270 |
Dam Height |
18 |
River Or Stream |
TR-MONTEZUMA CR |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
50 |
Structural Height |
18 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
18 |
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 111034