Haynie Wk Reservoir Report

Last Updated: December 6, 2025

Haynie Wk, also known as W K Haynie Lake, is a privately owned reservoir located in Bryan County, Oklahoma.


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Summary

This dam, completed in 1981, serves mainly for irrigation purposes with a storage capacity of 186 acre-feet. Situated on a tributary to Blue River, it plays a crucial role in water resource management in the region.

Managed by the Oklahoma Water Resources Board, Haynie Wk is regulated and inspected by the state authorities to ensure its safety and compliance with standards. The dam, primarily made of earth and stone materials, stands at a height of 22 feet and has a length of 1052 feet. Despite its low hazard potential, the reservoir is considered to have a very high risk due to its age and potential impact in case of failure.

With a controlled spillway and one outlet gate, Haynie Wk is equipped to handle maximum discharges and maintain water levels within safe limits. Although its condition assessment is not rated, regular inspections are conducted every 5 years to monitor its structural integrity. As a vital water resource for irrigation in the area, the reservoir plays a significant role in supporting agricultural activities and water supply management in Bryan County.

Year Completed

1981

Dam Length

1052

Dam Height

22

River Or Stream

TRIB TO BLUE RIVER

Primary Dam Type

Earth

Hydraulic Height

22

Drainage Area

1000

Nid Storage

186

Structural Height

22

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

22
       
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.