Warrenton Lake Reservoir Report

Last Updated: December 5, 2025

Warrenton Lake, located in Tulsa, Oklahoma, is a privately owned earth dam constructed in 1936 by the Works Progress Administration (WPA).


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Summary

With a dam height of 30 feet and a length of 400 feet, the lake serves primarily for recreational purposes and has a storage capacity of 50 acre-feet. The dam is regulated by the Oklahoma Water Resources Board (OWRB) and undergoes regular inspections to ensure its safety and functionality.

The South Fork of Little Joe Creek feeds into Warrenton Lake, providing a surface area of 4 acres for outdoor activities. The controlled spillway with a width of 6 feet ensures proper water management and flood control. Despite being classified as a high hazard potential structure, the dam is in fair condition as of the last inspection in November 2021. The risk assessment for Warrenton Lake is very high, emphasizing the importance of proper risk management measures to mitigate potential hazards.

As a key feature in the Tulsa District and under the jurisdiction of the state of Oklahoma, Warrenton Lake stands as a vital water resource for the community. Its historical significance, combined with its recreational value and regulatory oversight, make it a noteworthy site for water resource and climate enthusiasts to appreciate and monitor for conservation and safety.

Year Completed

1936

Dam Length

400

Dam Height

30

River Or Stream

SOUTH FORK OF LITTLE JOE CREEK

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

29

Drainage Area

0.02

Nid Storage

50

Structural Height

30

Outlet Gates

Valve - 1

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

30
       
Seasonal Comparison

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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.