Wrigley Springs Reservoir Report

Last Updated: December 5, 2025

Wrigley Springs is a privately owned irrigation structure located in Emery County, Utah, near the city of Ferron.


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Summary

Constructed in 1957 by the USDA NRCS, this earth dam has a hydraulic height of 20 feet and a structural height of 24 feet, with a capacity to store 172 acre-feet of water for agricultural purposes. The dam is regulated by the Utah Division of Water Rights, ensuring its proper maintenance and inspection.

The dam is situated on the Wrigley Springs Fork of Slide Hollow and serves as a crucial water resource for the surrounding area, with a drainage area of 1.3 square miles. Despite being classified as having a significant hazard potential, the condition of Wrigley Springs has not been rated, and its last inspection took place in August 2019. While there is no Emergency Action Plan (EAP) in place currently, the dam meets state regulatory standards and is subject to regular inspections to ensure its safety and functionality for irrigation purposes.

Managed by the Natural Resources Conservation Service, Wrigley Springs plays a vital role in supporting agricultural activities in the region, showcasing the importance of water resource infrastructure in sustaining local economies. With a history dating back to the mid-20th century, this dam continues to be a crucial component of the water management system in Emery County, highlighting the intersection of water resource management and climate considerations in the arid landscapes of Utah.

Year Completed

1957

Dam Length

930

River Or Stream

WRIGLEY SPR. FK. SLIDE HOLLOW

Primary Dam Type

Earth

Hydraulic Height

20

Drainage Area

1.3

Nid Storage

172

Structural Height

24

Hazard Potential

Significant

Nid Height

24
       
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.