Oknoname 111087 Reservoir Report
Nearby: New Beggs Boatman An
Last Updated: December 28, 2025
Oknoname 111087, located in Okmulgee, Oklahoma, is a privately owned dam on TR-ADAMS CREEK with a height of 28 feet and a length of 3490 feet.
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Summary
Completed in 1960, this earth dam serves a primary purpose of "Other" and has a storage capacity of 50 acre-feet. The dam is regulated by the Oklahoma Water Resources Board (OWRB) and has state jurisdiction, permitting, inspection, and enforcement.
Despite being rated as having a low hazard potential, Oknoname 111087 is considered to have a very high risk level, with a risk assessment of 1. The dam is equipped with a controlled spillway and a valve outlet gate. The last inspection date was in August 2011, with an inspection frequency of every 5 years. The condition of the dam is currently listed as "Not Rated", and there is no Emergency Action Plan (EAP) in place.
With its strategic location and importance in water resource management, Oknoname 111087 serves as a significant landmark in the Tulsa District. Climate and water resource enthusiasts can appreciate the unique design and purpose of this dam, as well as the regulatory oversight and risk assessment measures in place to ensure its safety and functionality.
Year Completed |
1960 |
Dam Length |
3490 |
Dam Height |
28 |
River Or Stream |
TR-ADAMS CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
28 |
Nid Storage |
50 |
Structural Height |
28 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
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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 111087