New Melones Reservoir

Reservoir Levels Weather Hydrology


New Melones Reservoir is located in Calaveras and Tuolumne counties, California. It was created in 1979 by the construction of the New Melones Dam on the Stanislaus River. The reservoir has a capacity of 2.4 million acre-feet and is an important source of water for hydroelectric power generation, agriculture, and recreation. The hydrology of the reservoir is influenced by the snowpack from the Sierra Nevada Mountains, which provides water for the river and reservoir during the dry months. The surface flow providers for the reservoir include the Stanislaus, Tuolumne, and Calaveras rivers. The reservoir is used for irrigation of crops such as almonds, grapes, and citrus fruits, as well as for recreational activities such as fishing, boating, and camping. The reservoir also provides habitat for various fish, including the endangered Chinook salmon and the steelhead trout.

May 21, 2024

°F

°F

mph

Windspeed

%

Humidity

Storage 24hr Change 0.27%
Percent of Normal 137%
Minimum 264,401 acre-ft
2015-11-07
Maximum 2,356,700 acre-ft
2006-06-15
Average 1,518,040 acre-ft
Nid_Height 625
Hydraulic_Height 614
Primary_Dam_Type Rockfill
Drainage_Area 897
Year_Completed 1979
Dam_Height 578
Structural_Height 625
Surface_Area 13450
Nid_Storage 2870000
River_Or_Stream STANISLAUS RIVER
Dam_Length 1560
Hazard_Potential High

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Nearby Streamgauges

2310

Cubic Feet Per Second

3490

Cubic Feet Per Second

47

Cubic Feet Per Second

6

Cubic Feet Per Second
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