Devine #4 Reservoir Report

Last Updated: December 13, 2025

Devine #4 is a privately owned earth dam located in Freedom, Oklahoma, within the Tulsa District.


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Summary

Built in 1977 by the USDA NRCS, this dam stands at 26 feet tall and spans 136 feet in length, with a storage capacity of 24 acre-feet. Despite its low hazard potential, it is categorized with a moderate risk assessment due to its condition being labeled as "Not Rated" and lacking emergency action preparedness measures.

This dam, with an uncontrolled spillway, poses a potential risk that could be mitigated with proper risk management measures and the development of an Emergency Action Plan. With a drainage area of 0.12 square miles, Devine #4 serves as a critical infrastructure for water resource management in the region. However, the lack of regular inspections and assessments highlight the need for increased oversight and maintenance to ensure the safety and functionality of this structure.

As climate change continues to impact water resources and infrastructure, the importance of maintaining and monitoring dams like Devine #4 becomes increasingly crucial. With coordinated efforts from regulatory agencies and private owners, this dam can be better equipped to withstand future challenges and contribute to sustainable water management practices in Oklahoma.

Year Completed

1977

Dam Length

136

Dam Height

26

Primary Dam Type

Earth

Surface Area

3

Hydraulic Height

26

Drainage Area

0.12

Nid Storage

24

Hazard Potential

Low

Nid Height

26
       
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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.