Kaibab Reservoir Report

Last Updated: December 5, 2025

Kaibab is a rockfill dam located in Coconino, Arizona, with a primary purpose of recreation and water supply.


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Summary

Completed in 1934, the dam stands at a height of 44 feet and has a storage capacity of 967 acre-feet. Situated along the Dogtown Wash, the dam spans 664 feet in length and features an uncontrolled spillway with a width of 200 feet. The dam's hazard potential is rated as low, with a moderate risk assessment score of 3.

Owned by the local government and regulated by the Arizona Department of Water Resources, Kaibab is inspected every five years to ensure its structural integrity and compliance with state regulations. The dam's condition is currently not rated, and it does not have an Emergency Action Plan (EAP) in place. Despite its age, Kaibab continues to serve as a vital resource for water supply and recreational activities in the region, reflecting a blend of historical significance and ongoing functionality in managing water resources in the area.

With its picturesque location on the Havasupai Indian Reservation, Kaibab offers a scenic backdrop for outdoor enthusiasts and climate advocates alike. Its role in providing water supply and supporting recreational activities underscores the importance of sustainable water resource management in balancing human needs with environmental preservation. As a key structure in the region's water infrastructure, Kaibab stands as a testament to the enduring legacy of water management efforts and the critical role of dams in maintaining water security in the face of changing climate conditions.

Year Completed

1934

Dam Length

664

Dam Height

36

River Or Stream

DOGTOWN WASH

Primary Dam Type

Rockfill

Surface Area

75

Hydraulic Height

36

Drainage Area

18

Nid Storage

967

Structural Height

44

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

44
       
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.