Carson Ray M. Reservoir Report

Last Updated: December 5, 2025

Carson Ray M., a private water resource structure located in Guerry, Oklahoma, is a vital component of the state's water management infrastructure.


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Summary

Built in 1955 with a primary purpose of "Other," this Earth-type dam stands at a height of 20 feet and spans a length of 1100 feet, providing a storage capacity of 170 acre-feet. The dam is regulated by the Oklahoma Water Resources Board and is subject to state inspection, enforcement, and permitting requirements.

Despite its low hazard potential, Carson Ray M. presents a very high risk due to its age and condition assessment that is currently not rated. The dam features a controlled spillway with a width of 1 foot and a single valve outlet gate for water release. The structure has not been modified in recent years, and its last inspection was conducted in December 2010 with a recommended inspection frequency of every 5 years. The risk management measures for Carson Ray M. are not specified, highlighting the need for continued monitoring and maintenance to ensure the safety and efficiency of this important water resource infrastructure.

As climate change and increasing water demands place greater pressure on Oklahoma's water resources, Carson Ray M. plays a crucial role in providing storage and flood control along the TR-Persimmon Creek. With a surface area of 12 acres and a normal storage capacity of 100 acre-feet, this dam is a key asset in managing water flow and protecting downstream areas from potential flooding. As water resource and climate enthusiasts, it is important to monitor the condition and maintenance of structures like Carson Ray M. to ensure the sustainability and resilience of Oklahoma's water infrastructure in the face of changing environmental conditions.

Year Completed

1955

Dam Length

1100

Dam Height

20

River Or Stream

TR-PERSIMMON CR

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

20

Nid Storage

170

Structural Height

20

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

20
       
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.