Ten Acre Lake Reservoir Report

Last Updated: December 5, 2025

Ten Acre Lake, located in Weber County, Utah, is a private reservoir primarily used for irrigation purposes.


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Summary

Managed by the Utah Division of Water Rights, this earth dam structure has a hydraulic height of 23 feet and a structural height of 26 feet, with a storage capacity of 150 acre-feet. The lake, with a normal storage level of 130 acre-feet, covers a surface area that supports the surrounding agricultural activities.

Despite its high hazard potential, Ten Acre Lake is currently assessed to be in fair condition, with the last inspection conducted in May 2020. The dam is regulated, inspected, and enforced by the state, ensuring its safety and compliance with regulatory standards. While no modification or maintenance records are available, the lake is equipped with emergency action plans, although details on their preparation and revisions are unknown.

For water resource and climate enthusiasts, Ten Acre Lake presents an intriguing case study of a privately owned reservoir in Utah. With its location in a vital agricultural region and its reliance on irrigation, the lake serves as a critical water source for the surrounding area. Understanding the management and regulatory framework of such water bodies is essential for ensuring sustainable water usage and mitigating potential risks associated with dam structures.

Primary Dam Type

Earth

Hydraulic Height

23

Nid Storage

150

Structural Height

26

Hazard Potential

High

Nid Height

26
       
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.