Whittington Reservoir Report

Last Updated: December 5, 2025

Whittington is a privately owned dam located in Willis, Oklahoma, along the TR-Red River.


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Summary

Built in 1960, this Earth dam stands at a height of 28 feet and has a length of 415 feet, providing a storage capacity of 156 acre-feet. The dam serves primarily for purposes other than flood control or irrigation, with a low hazard potential and a very high risk assessment rating.

Managed by the Oklahoma Water Resources Board (OWRB), Whittington undergoes regular inspections, with the last one conducted in May 2010. The dam features a controlled spillway and an outlet gate, ensuring proper water release when needed. While the condition assessment is not rated, the risk management measures for this dam are not specifically outlined, highlighting the importance of ongoing monitoring and maintenance to ensure its safety and longevity in the face of climate challenges.

Year Completed

1960

Dam Length

415

Dam Height

28

River Or Stream

TR-RED RIVER

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

28

Nid Storage

156

Structural Height

28

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

28
       
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.