Oknoname 111057 Reservoir Report
Nearby: Oknoname 111058 Oknoname 111078
Last Updated: December 6, 2025
Oknoname 111057, located in Okmulgee, Oklahoma, is a privately owned earth dam with a height of 30 feet and a length of 3360 feet.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1950, this dam on TR-COAL CREEK serves a primary purpose of "Other" and has a storage capacity of 450 acre-feet. The dam features a controlled spillway and a single valve outlet gate.
While the hazard potential is rated as low, the risk assessment for Oknoname 111057 is considered very high, with a DSAC (Dam Safety Action Classification) of 1. The dam is under the regulatory authority of OWRB in Oklahoma, with state jurisdiction and enforcement in place. The last inspection in August 2011 indicated a condition assessment of "Not Rated", highlighting the need for further evaluation and potential risk management measures.
Despite its low hazard potential, the high risk assessment for Oknoname 111057 underscores the importance of regular inspections and potential safety upgrades. As a key feature in the water resource infrastructure of Oklahoma, this dam on TR-COAL CREEK requires ongoing attention to ensure the safety of nearby communities and the integrity of the surrounding environment.
Year Completed |
1950 |
Dam Length |
3360 |
Dam Height |
30 |
River Or Stream |
TR-COAL CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
30 |
Nid Storage |
450 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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 111057