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- 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.
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USGS Water-Year Summary 2024
08332010 RIO GRANDE FLOODWAY NEAR BERNARDO, NM
LOCATION - Lat 34°25'01", long 106°48'00" referenced to North American Datum of 1927, Socorro County, NM, Hydrologic Unit 13020203, in Belen or Sevilleta Grant, on downstream side of bridge on U.S. Highway 60, 2.0 mi east of Bernardo, 5.0 mi downstream from heading of conveyance channel, and at mile 1,487.2.
DRAINAGE AREA - 19,230 mi². (approximately, including 2,940 mi2 in closed basin in San Luis Valley, CO)
REVISIONS HISTORY - Prior to August 15, 2024 the datum of the gage was 4705.60 ft above NGVD29 (reported).
SURFACE-WATER RECORDS
PERIOD OF RECORD - June 1936 to January 1939, October 1941 to September 2004, October 2011 to current year. Monthly discharges only, October 1942 to June 1943, published in WSP 1312, and October 1960 to September 1964, published in WSP 1923 (daily records available in District files). Published as "Rio Grande near Bernardo" prior to October 1964. Prior to October 1952, flow of Bernardo interior drain was included only when it carried river overflow; the entire flow has been included from October 1952 to September 1964. Flow in the conveyance channel, formerly "San Francisco Riverside drain," has been included in records prior to October 1964.
GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Datum of gage is 4711.04 ft above NAVD88 as determined by a GNSS Level II rapid-static survey performed by the USGS on October 19, 2023. From May 7, 1996 to Sept. 28, 2011, at datum 13.95 ft higher. Prior to May 7, 1996, at datum 16.95 ft higher.
REMARKS - Water years 2014-2019; records good except for estimated discharges, which are poor. Since Nov. 1973, flow regulated by Cochiti Dam (station 08317300) 100 mi upstream. Floodway is 1 of 4 channels (stations 08331990 [discontinued], 08332030 [discontinued], 08332050 [discontinued]) carrying flow in valley cross section. Diversions for irrigation of about 740,000 acres upstream from station.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - SUSPENDED-SEDIMENT DISCHARGE: October 1964 to September 2004, October 2011 to current year.
INSTRUMENTATION - Automatic pumping sediment sampler.
