Jarvis Reservoir Report

Last Updated: December 4, 2025

Jarvis, located in Nutrioso, Arizona, is a privately owned irrigation dam on Nutrioso Creek.


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Summary

Built in 1886, this earth dam stands at a height of 7 feet and spans 500 feet in length, with a storage capacity of 136 acre-feet. The dam is regulated by the Arizona Department of Water Resources and undergoes regular inspections, with a low hazard potential and a moderate risk assessment rating.

Despite its age, Jarvis remains in good condition and has not been rated for its current state. While it has a controlled spillway and no outlet gates, the dam serves its primary purpose of irrigation effectively. The surrounding area covers 9 acres and falls within Apache County, Arizona, under the jurisdiction of the Los Angeles District. The dam's risk management measures and emergency preparedness status are not explicitly stated in the data, suggesting potential areas for improvement or further assessment by relevant authorities.

For water resource and climate enthusiasts, Jarvis offers a glimpse into Arizona's historical water infrastructure and the ongoing regulatory efforts to ensure its safety and functionality. With its modest size and low hazard potential, the dam represents a piece of the region's irrigation history while highlighting the importance of consistent monitoring and maintenance to address potential risks and ensure proper water management in the area. Further research and assessment may provide valuable insights into Jarvis' continued role in supporting agricultural activities in Nutrioso and its surrounding areas.

Year Completed

1886

Dam Length

500

Dam Height

7

River Or Stream

NUTRIOSO CREEK - TR

Primary Dam Type

Earth

Surface Area

9

Hydraulic Height

7

Nid Storage

136

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

7
       
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.