Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

Water-Year Summary for Site 11193031

Click to hide Water-Year Summary instructions and information
  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  

Water year 2020: 2019-10-01 to 2020-09-30

Print this page
USGS Water-Year Summary 2020
11193031 Kern River at Rio Bravo Powerplant, near Bakersfield, CA
LOCATION - Lat 35°25'49", long 118°49'18" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 SW 1/4 sec.01, T.29 S., R.29 E., Kern County, CA, Hydrologic Unit 18030012, on left bank, at diversion to Rio Bravo Powerplant, and 15.5 mi northeast of Bakersfield.
DRAINAGE AREA - Not determined.
PERIOD OF RECORD - October 1989 to current year.
GAGE - Water-stage recorder and broad-crested weir; water-stage recorder, Parshall flume and drain gate. Elevation of gage is 678.17 ft above NGVD of 1929.
COOPERATION - Records, including diversion through Rio Bravo Powerplant (station 11193010), provided by Rio Bravo Hydro Project, under the general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 4129.
REMARKS - Records for water year 2014 through 2016 were not accepted for publication. Flow regulated by Isabella Lake, capacity, 570,000 acre-ft. Flow at this station has three components which are combined for publication: flow over a broad-crested weir (station 11193020), flow through a Parshall flume (station 11193030) and bypass flow through a sand ejector and drain gate in dam (station 11193032). Water is diverted upstream from weir through a channel to Rio Bravo Powerplant, returning to Kern River about 1.5 mi downstream. See schematic diagram of Kern River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge (combined), 5,160 ft³/s, Feb. 23, 1998; minimum daily, 46 ft³/s, Feb. 22, 1996.