Daggs Reservoir Report

Last Updated: December 5, 2025

Daggs, a rockfill dam located in Navajo, Arizona, serves a primary purpose of irrigation with additional recreational benefits.


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Summary

Completed in 1919, this structure boasts a height of 57 feet and a length of 550 feet, providing a storage capacity of 13,750 acre-feet. Situated on the Silver Creek-Rocky Arroyo, Daggs is regulated by the Arizona Department of Water Resources, ensuring proper inspection, enforcement, and permitting processes are in place to maintain its integrity.

With a high hazard potential and fair condition assessment, Daggs presents a moderate risk level, calling for ongoing risk management measures. The spillway, with a width of 250 feet, is uncontrolled, emphasizing the need for vigilant monitoring and preparedness. Despite its age, Daggs continues to play a vital role in water resource management in the region, highlighting the importance of infrastructure maintenance and modernization to adapt to changing climate conditions.

As water resource and climate enthusiasts, keeping a keen eye on structures like Daggs is crucial in understanding the intersection of water management, infrastructure resilience, and environmental sustainability. By staying informed about the regulatory oversight, risk assessment, and maintenance practices of dams like Daggs, we can contribute to the preservation and responsible utilization of our precious water resources amidst a changing climate landscape.

Year Completed

1919

Dam Length

550

Dam Height

57

River Or Stream

SILVER CREEK-ROCKY ARROYO

Primary Dam Type

Rockfill

Surface Area

379

Drainage Area

96

Nid Storage

13750

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

57
       
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.