Sevier Bridge Reservoir Report

Last Updated: December 5, 2025

Sevier Bridge, located in Juab County, Utah, is a vital structure that serves the primary purpose of irrigation along the Sevier River.


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Summary

Built in 1914, this private-owned earth dam stands at a structural height of 92 feet, with a hydraulic height of 79 feet and a length of 1340 feet. It boasts a storage capacity of 363,000 acre-feet, providing essential water resources for agricultural activities within the region.

Managed by the Utah Division of Water Rights, Sevier Bridge is regulated, permitted, inspected, and enforced by the state authorities to ensure its proper functioning and safety. Despite being assessed as having a fair condition, the dam poses a high hazard potential, which necessitates regular inspections and maintenance efforts. With a drainage area of 5,120 square miles and a maximum discharge capacity of 2,625 cubic feet per second, the structure plays a crucial role in water management within the area.

As an integral part of the water infrastructure in Juab County, Sevier Bridge stands as a testament to the engineering ingenuity of its time and continues to support the local agricultural community with much-needed irrigation resources. With its historical significance and ongoing importance in water resource management, this earth dam remains a key feature along the Sevier River, contributing to the sustainability and resilience of the region's water supply in the face of changing climate conditions.

Year Completed

1914

Dam Length

1340

River Or Stream

SEVIER RIVER

Primary Dam Type

Earth

Hydraulic Height

79

Drainage Area

5120

Nid Storage

363000

Structural Height

92

Hazard Potential

High

Nid Height

92
       
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.