Dogtown Reservoir Report

Last Updated: December 5, 2025

Dogtown is a local government-owned Earth dam located in Coconino, Arizona, with a primary purpose of serving as a Fish and Wildlife Pond.


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Summary

Built in 1934, this structure stands at a height of 32 feet and has a storage capacity of 1390 acre-feet, with a normal storage level of 965 acre-feet. The dam is situated on the Dogtown Wash, with a drainage area of 5.57 square miles, providing critical water supply for the surrounding area.

Managed by the Arizona Department of Water Resources, Dogtown has a significant hazard potential and is classified as having a fair condition assessment. The dam's spillway is uncontrolled with a width of 60 feet, and it has a maximum discharge capability of 5360 cubic feet per second. Despite its age, Dogtown continues to play a vital role in supporting fish and wildlife habitats, recreational activities, and water supply needs in the region. The dam's location near the Havasupai Indian Reservation and I-40 makes it a key feature in the local landscape.

With its historical significance and ongoing importance in water resource management, Dogtown serves as a reminder of the critical role that infrastructure plays in sustaining ecosystems and communities in the face of changing climate conditions. As climate enthusiasts and water resource stakeholders continue to monitor and assess the resilience of such structures, Dogtown stands as a symbol of the intersection between human intervention and natural processes in maintaining a delicate balance in water management efforts.

Year Completed

1934

Dam Length

600

Dam Height

32

River Or Stream

DOGTOWN WASH

Primary Dam Type

Earth

Surface Area

81

Hydraulic Height

32

Drainage Area

5.57

Nid Storage

1390

Hazard Potential

Significant

Foundations

Rock, Soil

Nid Height

32
       
Seasonal Comparison

Weather Forecast

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.