Reservoir Levels Weather Hydrology

Rollins Reservoir is located in Nevada County, California and was created in 1965 by the construction of the Rollins Dam on the Bear River. The reservoir has a capacity of 56,000 acre-feet and provides water for irrigation, domestic use, and hydroelectric power generation. The Bear River Watershed is the primary contributor to the reservoir's surface flow, with snowpack contributing to the water supply. The reservoir is operated by the Nevada Irrigation District, and its water is used for agricultural purposes such as irrigating crops like apples, grapes, and peaches. Recreational activities include fishing, boating, camping, and hiking. The reservoir is also home to various species of fish, including bass and trout, making it a popular fishing spot for locals and tourists alike.

June 19, 2024







Storage 24hr Change -0.62%
Percent of Normal 89%
Minimum 41,155 acre-ft
Maximum 68,572 acre-ft
Average 64,114 acre-ft
Nid_Height 228
Hydraulic_Height 211
Drainage_Area 104
Year_Completed 1965
Dam_Height 228
Structural_Height 227.5
River_Or_Stream Bear River
Primary_Dam_Type Earth
Foundations Rock
Surface_Area 828
Hazard_Potential High
Nid_Storage 65988
Dam_Length 1840

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Cubic Feet Per Second


Cubic Feet Per Second


Cubic Feet Per Second


Cubic Feet Per Second

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