Sargent No 1 Reservoir Report

Last Updated: December 5, 2025

Sargent No 1 is a privately owned irrigation dam located in Coalville, Utah, along the Elkhorn Ditch.


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Summary

Constructed in 1956 by the USDA NRCS, this earth dam stands at a hydraulic height of 31 feet and a structural height of 36 feet, with a length of 600 feet. It serves the primary purpose of irrigation, storing 120 acre-feet of water with a normal storage capacity of 90 acre-feet. Despite its low hazard potential, the dam is regulated by the Utah Division of Water Rights and undergoes state inspection, enforcement, and permitting.

The dam's location in Summit County, Utah, makes it a vital resource for water management in the region, with a drainage area of 0.3 square miles and a maximum discharge of 5 cubic feet per second. While the dam's condition assessment is currently not rated, it has a regular inspection frequency of every 5 years, with the last inspection conducted in July 2016. Sargent No 1's emergency action plan status, risk assessment, and management measures are not fully documented, but its low hazard potential suggests a relatively low level of risk associated with the structure.

Overall, Sargent No 1 plays a crucial role in supporting agricultural activities in the area through irrigation water storage. Its design by the USDA NRCS and regulation by the Utah Division of Water Rights ensure that it meets safety standards and operational requirements. With its modest scale and low hazard potential, the dam serves as a significant yet manageable component of the local water resource infrastructure, contributing to the sustainable management of water in the region.

Year Completed

1956

Dam Length

600

River Or Stream

ELKHORN DITCH

Primary Dam Type

Earth

Hydraulic Height

31

Drainage Area

0.3

Nid Storage

120

Structural Height

36

Hazard Potential

Low

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.