Lundy Lake Reservoir Report

Last Updated: December 5, 2025

Lundy Lake, also known as Mill Creek, is a privately owned water resource located in Mono County, California.


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Summary

The dam was completed in 1911 and has a height of 48 feet, serving primarily for hydroelectric purposes. With a storage capacity of 4,113 acre-feet and a surface area of 132 acres, Lundy Lake provides not only essential water resources but also recreational opportunities for visitors.

Managed by the Federal Energy Regulatory Commission, Lundy Lake's dam is classified as a rockfill structure and has a spillway width of 150 feet. Despite being categorized as having a high hazard potential, the risk assessment for the dam is moderate. Regular inspections are conducted to ensure the safety and integrity of the structure, with the last inspection taking place in September 2020. The dam's location in the picturesque Lee Vining area adds to its allure for water resource and climate enthusiasts seeking to explore its historical significance and natural beauty.

Overall, Lundy Lake stands as a testament to the harmonious blend of human infrastructure and natural landscapes, highlighting the importance of sustainable water resource management in the face of climate change challenges. As a vital component of California's water infrastructure, the dam at Lundy Lake serves as a reminder of the delicate balance between harnessing water resources for energy production while preserving the environment for future generations to enjoy. For those passionate about water resources and climate advocacy, Lundy Lake offers a captivating case study of innovation, regulation, and conservation in action.

Year Completed

1911

Dam Length

690

Dam Height

48

River Or Stream

Mill Creek

Primary Dam Type

Rockfill

Surface Area

132

Nid Storage

4113

Hazard Potential

High

Foundations

Rock, Soil

Nid Height

48
       
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.