Lower Crystal Springs Reservoir

Reservoir Levels Weather Hydrology


Lower Crystal Springs Reservoir is a man-made reservoir located on the northern end of the Santa Clara Valley in California. The reservoir was built in 1888 to provide drinking water to the residents of San Francisco. The hydrology of the reservoir is primarily controlled by the San Andreas Fault, which runs directly under the reservoir. The reservoir is fed by surface flows from the San Mateo Creek and is also a snowpack provider during the winter months. The water from the reservoir is used for municipal purposes and agricultural irrigation. Recreational uses of the reservoir include fishing, boating, and hiking. The reservoir is home to a variety of fish species, including bass, catfish, and bluegill.

June 21, 2024

°F

°F

mph

Windspeed

%

Humidity

Storage 24hr Change -0.07%
Percent of Normal 99%
Minimum 42,856 acre-ft
2024-01-30
Maximum 65,788 acre-ft
2023-01-16
Average 52,583 acre-ft
Dam_Height 149
Hydraulic_Height 138.8
Drainage_Area 28.71
Year_Completed 1888
Nid_Storage 57910
River_Or_Stream San Mateo Creek
Primary_Dam_Type Gravity
Surface_Area 1323
Hazard_Potential High
Dam_Length 600
Nid_Height 149

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5-Day Weather Forecast

16-Day Weather Forecast

Nearby Streamgauges

169000

Cubic Feet Per Second

6870

Cubic Feet Per Second

9

Cubic Feet Per Second

2

Cubic Feet Per Second

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