Rim Dike 2 Reservoir Report

Last Updated: December 7, 2025

Rim Dike 2, located in Mayes, Oklahoma, is a state-regulated structure with a primary purpose of hydroelectric power generation.


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Summary

Completed in 1968, this dam stands at a height of 35 feet and has a length of 300 feet. It is constructed with buttress and stone cores supported by rock and soil foundations, making it a sturdy and reliable structure.

With a storage capacity of 48,225 acre-feet and a surface area of 742 acres, Rim Dike 2 plays a crucial role in water resource management in the region, specifically along the Salina Creek and Neosho River. Although it has a low hazard potential, the dam is identified as having a high risk level, prompting the need for robust risk management measures to ensure its safety and reliability.

Owned by the state of Oklahoma and overseen by the Federal Energy Regulatory Commission, Rim Dike 2 serves as a key player in the local water infrastructure, contributing to both water supply and hydroelectric power generation. Its strategic location and design make it an essential component in the region's water resource and climate resilience efforts.

Year Completed

1968

Dam Length

300

Dam Height

35

River Or Stream

Salina Creek, Neosho River

Surface Area

742

Nid Storage

48225

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

35
       
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.