Marsh Lake Reservoir Report

Last Updated: December 4, 2025

Marsh Lake, situated in Summit County, Utah, is a federal-owned water resource managed by the USDA Forest Service.


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Summary

Built in 1932 for recreational purposes, Marsh Lake is an earth dam with a maximum storage capacity of 152 acre-feet. The dam, standing at 8 feet high, serves as a low hazard potential structure with uncontrolled spillways and outlets.

Managed and regulated by the Forest Service, Marsh Lake undergoes regular inspections with a frequency of 10 years. Despite being classified as having a moderate risk assessment, the condition of the dam is currently not rated. The lake, located in Robertson, Wyoming, offers a serene recreational environment for visitors to enjoy. With its location in a beautiful natural setting, Marsh Lake is a valuable water resource for the surrounding area, showcasing the intersection of water management and climate conservation efforts.

Year Completed

1932

Dam Length

115

Dam Height

8

River Or Stream

MARSH LAKE

Primary Dam Type

Earth

Hydraulic Height

6

Drainage Area

1

Nid Storage

152

Structural Height

9

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

9
       
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.