Loon Lake Auxiliary, located in El Dorado County, California, is a rockfill dam primarily used for hydroelectric power generation and recreational purposes.
Wind
Humidity
Built in 1963 by Bechtel, this dam stands at a height of 90 feet and has a structural height of 102 feet. It has a storage capacity of 69,309 acre-feet, with a normal storage level of 51,000 acre-feet, covering a surface area of 1,450 acres.
Managed by the Federal Energy Regulatory Commission, the dam is inspected annually and is deemed to have a significant hazard potential. The surrounding area is at high risk, according to a risk assessment, with emergency action plans in place. While the dam has not undergone a recent condition assessment, it is regulated and permitted by the California Department of Water Resources, ensuring its safety and compliance with state standards. Overall, Loon Lake Auxiliary serves as a vital resource for water supply, electricity generation, and recreational activities in the region.
Year Completed |
1963 |
Dam Length |
910 |
Dam Height |
90 |
River Or Stream |
Gerle Creek |
Primary Dam Type |
Rockfill |
Surface Area |
1450 |
Hydraulic Height |
94 |
Drainage Area |
7.96 |
Nid Storage |
69309 |
Structural Height |
102 |
Hazard Potential |
Significant |
Foundations |
Rock |
Nid Height |
102 |
| Location | Reservations | Toilets |
|---|---|---|
Loon Lake Chalet
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Loon Lake Campground
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Loon Lake Group Campground
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Northshore Campground
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Red Fir Group Campground
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Northshore
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