Flanigin Dam Reservoir Report

Last Updated: December 6, 2025

Located in Bridgeport, Oklahoma, the Flanigin Dam stands as a testament to private ownership in the realm of water resources management.


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Summary

Completed in 1970, this dam plays a crucial role in regulating water flow in the tributaries to the Canadian River, with a primary purpose classified as "Other". With a height of 35 feet and a length of 390 feet, the dam boasts a maximum storage capacity of 180 acre-feet and a normal storage of 20 acre-feet.

Operated under the jurisdiction of the Oklahoma Water Resources Board (OWRB), the Flanigin Dam is equipped with a controlled spillway and has a low hazard potential. Despite being labeled as "Not Rated" in terms of condition assessment, the dam falls under the category of "Very High (1)" in terms of risk assessment. While the last inspection date and condition assessment date are unknown, the dam is subject to inspections every 5 years, ensuring its continued functionality and safety. For water resource and climate enthusiasts, the Flanigin Dam serves as a focal point for understanding the intricate network of dams and reservoirs that play a crucial role in water management across the state of Oklahoma.

Year Completed

1970

Dam Length

390

Dam Height

35

River Or Stream

TRI. TO CANADIAN RIVER

Nid Storage

180

Hazard Potential

Low

Nid Height

35
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.