Arthur V. Watkins Reservoir Report

Last Updated: December 5, 2025

Arthur V.


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Summary

Watkins, also known as Willard, is a federal irrigation structure located in Box Elder, Utah. Managed by the Bureau of Reclamation, this offstream reservoir on the Bear River serves the primary purpose of irrigation. Completed in 1964, it has a storage capacity of 223,100 acre-feet and covers a surface area of 9,950 acres. With a hydraulic height of 26 feet and a structural height of 36 feet, this earth dam plays a crucial role in water resource management in the region.

Despite its age, Arthur V. Watkins remains a key component of the water infrastructure in Utah, with regular inspections and maintenance conducted by the Bureau of Reclamation. The dam has a high hazard potential, necessitating careful monitoring and emergency preparedness. While the exact condition assessment is not available, the structure has undergone modifications in 2009 to reinforce its foundation and structure. With Rob Bishop (R) representing the area in Congress, the dam continues to be a vital part of the local water supply system.

As a significant feature in the landscape of Box Elder, Utah, Arthur V. Watkins stands as a testament to the importance of water resource management in the region. With a long history of serving agricultural needs, this federal irrigation structure continues to play a crucial role in supporting the local economy and community. With ongoing efforts to ensure its safety and efficiency, the dam remains a valuable asset for water and climate enthusiasts alike.

Years Modified

2009 - Foundation, 2009 - Structural

Year Completed

1964

Dam Length

76665

River Or Stream

BEAR RIVER OFFSTREAM

Primary Dam Type

Earth

Surface Area

9950

Hydraulic Height

26

Drainage Area

16

Nid Storage

223100

Structural Height

36

Hazard Potential

High

Nid Height

36
       
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.