USGS Water-Year Summary 2023
08211500 Nueces River at Calallen, TX
LOCATION - Lat 27°52'58", long 97°37'30" referenced to North American Datum of 1927, Nueces County, TX, Hydrologic Unit 12110111, below the Cunningham pumping station in Corpus Christi, 200 ft upstream from Calallen Dam, 1.0 mi northwest of Calallen, about 0.4 mi upstream from bridge on Interstate Highway 37, about 7.0 mi upstream from Nueces Bay, and about 0.5 mi upstream from Missouri-Pacific Railroad bridge.
DRAINAGE AREA - 16,684 mi².
REVISIONS HISTORY - WSP 1312: Data Aug. 1915 to Mar. 1919 unreliable and should not be used. WDR US-2007: Drainage Area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Oct. 1983 to Sept. 1988 (maximum annual gage height and discharge). Oct. 1989 to Sept. 1999 (daily mean discharges below base discharge of 2,750 ft³/s), Oct. 1999 to current year. Records collected from Aug. 1915 to Sept. 1918 (referenced in WSP 1312) are unreliable and should not be used. Gage-height records collected Apr. 1920 to July 1950 were not published, but are on file in the WSC office in Austin.
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: July 1972 to Aug. 1973
SEDIMENT DATA: May 2006 to Aug. 2007
GAGE - Water-stage recorder and concrete control. Datum of gage is 0.384 ft. above NAVD of 1988. Datum of gage is 0.84 ft. above NGVD of 1929. Prior to June 15, 2000, water-stage recorder at site 0.5 mi upstream from Calallen Dam at same datum. Satellite telemeter at station.
WATER-QUALITY RECORDS
PERIOD OF RECORD -
SEDIMENT DATA: May 2006 to current year.