Echo Reservoir Report

Last Updated: December 5, 2025

Echo is a federally-owned dam located in Utah, specifically in Summit County near the city of Echo.


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Summary

Built in 1930 by the Bureau of Reclamation, Echo serves multiple purposes including flood risk reduction, hydroelectric power generation, irrigation, and recreation. The dam stands at a height of 158 feet and has a storage capacity of 73,940 acre-feet, making it a significant structure in the region.

The primary source of the dam is the Weber River, and its controlled spillway is 72 feet wide. With a hazard potential rated as high and a risk assessment indicating a very high risk level, Echo dam plays a crucial role in managing water resources and mitigating flood risks in the area. Despite its age, the dam has undergone modifications in 2015 to enhance its seismic and structural resilience, ensuring its continued effectiveness in protecting the surrounding communities and environment.

Managed by the Bureau of Reclamation, Echo dam's inspection frequency is set at one year, with the last inspection conducted in July 2020. While the condition assessment is not available, emergency action plans have been prepared and updated periodically. With its strategic location and vital role in water management, Echo dam stands as a key infrastructure in the region, embodying the intersection of water resource management and climate resilience.

Years Modified

2015 - Seismic, 2015 - Structural

Year Completed

1930

Dam Length

1887

Dam Height

158

River Or Stream

WEBER RIVER

Primary Dam Type

Earth

Surface Area

1455

Hydraulic Height

110

Drainage Area

836

Nid Storage

73940

Structural Height

158

Hazard Potential

High

Foundations

Rock

Nid Height

158
       
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.