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Water-Year Summary for Site 11408000

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
11408000 Milton-Bowman Tunnel Outlet near Graniteville, CA
LOCATION - Lat 39°27'37", long 120°36'37" referenced to North American Datum of 1927, in NW 1/4 NE 1/4 sec.03, T.18 N., R.12 E., Nevada County, CA, Hydrologic Unit 18020125, on right bank, 100 ft downstream from tunnel outlet, near upper end of Bowman Lake, and 6.9 mi east of Graniteville.
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1928 to September 1930, February 1931 to current year. Monthly discharge only for some periods, published in WSP 1315-A. Prior to October 1962, published as "Milton-Bowman tunnel at outlet."
GAGE - Water-stage recorder and Parshall flume. Datum of gage is 5,592.51 ft above NGVD of 1929. Prior to Sept. 22, 1964, at datum 0.56 ft higher.
COOPERATION - Records were collected by Nevada Irrigation District, under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 2266.
REMARKS - Tunnel diverts from Middle Yuba River at Milton Reservoir, in sec.12, T.19 N., R.12 E., and discharges into Bowman Lake. Nearly the entire flow of Middle Yuba River is diverted during low and medium flows. Middle Yuba River is regulated by Jackson Meadows Reservoir (station 11407800) since November 1964. See schematic diagram of North and Middle Yuba River Basins available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 492 ft³/s, Feb. 11, 1941; minimum daily, 0.4 ft³/s, Oct. 7, 1944.