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Lake Eleanor is a reservoir located in Tuolumne County, California.
The lake was created in the early 1900s as a part of the Hetch Hetchy water system development. It is managed by the San Francisco Public Utilities Commission and is used to supply water to the Bay Area. The hydrology of the lake is unique as it is fed by the Tuolumne River and receives water from the Hetch Hetchy Reservoir through a tunnel system. The snowpack from the Sierra Nevada Mountains also contributes to the lake's water supply. The lake is not used for agricultural purposes but is popular for recreational activities such as camping, fishing, and hiking. It is a part of the Stanislaus National Forest and is known for its scenic beauty.
| Storage 24hr Change | -0.07% |
| Percent of Normal | 108% |
| Minimum |
7,341.0 acre-ft
2020-12-31 |
| Maximum |
27,452.0 acre-ft
2022-12-31 |
| Average | 24,723 acre-ft |
| Dam_Height | 61 |
| Hydraulic_Height | 61 |
| Drainage_Area | 80.4 |
| Year_Completed | 1918 |
| Nid_Storage | 28600 |
| Primary_Dam_Type | Multi-Arch |
| River_Or_Stream | Eleanor Creek |
| Surface_Area | 953 |
| Hazard_Potential | High |
| Dam_Length | 1260 |
| Nid_Height | 61 |
| Location | Reservations | Toilets |
|---|---|---|
Lake Eleanor Campground
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Cherry Valley Campground
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Hetch Hetchy Backpackers Camp
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Dimond O Campground
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Diamond O
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Carlon Campground
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Clavey River From 3N01 To Cottonwood Road
Clavey River At Confluence Of Bell And Lily Creeks To 3N01
One-Tenth Mile Downstream Of Coffin Hollow To Confluence With Bell Creek And Clavey River
Lilly Creek (Source At Chewing Gum Lake And Y Meadow Lake) To One-Tenth Mile Downstream Of Coffin Hollow
0.15 Mile Downstream From Road 4N26B To Confluence With Lilly Creek
Confluence With Middle Fork Tuolumne River To Confluence With Tuolumne River