Glen Coe (Mckay) Reservoir Report

Last Updated: December 4, 2025

Glen Coe (Mckay) is a state-regulated earth dam located in Apache County, Arizona.


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Summary

Built in 1929, this structure serves primarily as a Fish and Wildlife Pond, with additional purposes including irrigation. The dam stands at a height of 14 feet and has a length of 1500 feet, creating a storage capacity of 245 acre-feet with a surface area of 26 acres.

Managed by the Arizona Department of Water Resources, Glen Coe (Mckay) is inspected every 5 years, with a low hazard potential and a moderate risk assessment rating. The dam is situated on Rudd Creek - TR in Springerville, Arizona, within the jurisdiction of the state regulatory agency. Despite being categorized as not rated in terms of condition assessment, the dam continues to provide essential functions for the local environment and wildlife.

With a history dating back almost a century, Glen Coe (Mckay) stands as a testament to the importance of water resource management and conservation efforts in Arizona. As a vital structure for supporting fish and wildlife habitats, as well as irrigation needs, this dam plays a crucial role in sustaining the ecosystem and water supply in the region. Its low hazard potential and moderate risk assessment highlight the importance of ongoing monitoring and maintenance to ensure its continued effectiveness and safety for the surrounding community.

Year Completed

1929

Dam Length

1500

Dam Height

14

River Or Stream

RUDD CREEK - TR

Primary Dam Type

Earth

Surface Area

26

Hydraulic Height

14

Drainage Area

0.25

Nid Storage

245

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

14
       
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.