Avant City Reservoir Report
Last Updated: December 6, 2025
Avant City, located in Osage County, Oklahoma, is a privately owned water supply dam on TR-Candy Creek.
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Summary
Built in 1970, this earth dam stands at a height of 40 feet and has a length of 1110 feet. With a storage capacity of 1600 acre-feet, the dam serves the primary purpose of providing water supply to the surrounding area.
Managed by the Oklahoma Water Resources Board, Avant City dam has a controlled spillway and a low hazard potential. Despite being labeled as "Very High Risk (1)", the condition assessment of the dam is currently not rated, and the last inspection took place in August 2006. With one valve outlet gate and a drainage area of 640 square miles, this dam plays a crucial role in water resource management in the region.
Although lacking a detailed risk management plan and emergency action protocol, the dam at Avant City remains a vital structure for ensuring water supply and regulating the flow of TR-Candy Creek. Climate enthusiasts and water resource experts may find interest in monitoring the condition and maintenance of this key infrastructure to ensure the safety and sustainability of water resources in the area.
Year Completed |
1970 |
Dam Length |
1110 |
Dam Height |
40 |
River Or Stream |
TR-CANDY CREEK |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
40 |
Drainage Area |
640 |
Nid Storage |
1600 |
Structural Height |
40 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
40 |
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.
Avant City