USGS Water-Year Summary 2024
08057410 Trinity River below Dallas, TX
LOCATION - Lat 32°42'27", long 96°44'08" referenced to North American Datum of 1927, Dallas County, TX, Hydrologic Unit 12030105, at downstream side of bridge on South Loop Highway 12, 1.0 mi downstream from White Rock Creek, 1.5 mi upstream from Fivemile Creek, 6.4 mi southeast of Dallas County Courthouse in Dallas, and at mile 491.8.
DRAINAGE AREA - 6,278 mi².
REVISIONS HISTORY - WDR TX-94-1: 1989.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Nov. 1956 to Sept. 1999, Oct. 2002 to current year.
GAGE - Water-stage recorder. Datum of gage is 365.89 ft above NGVD of 1929; 365.92 ft above NAVD of 1988. Satellite telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood on May 25, 1908, reached a stage of 41.1 ft, from information by U.S. Army Corps of Engineers, and is the highest since that date. Floods in 1866 and 1908 reached about the same stage at Dallas.
WATER-QUALITY RECORDS
PERIOD OF RECORD - CHEMICAL DATA: Oct. 1967 to Sept. 1999, Oct. 2001 to current year.
BIOCHEMICAL DATA: Oct. 1967 to Sept. 1999, Oct. 2001 to current year.
BIOLOGICAL DATA: Nov. 1992 to Sept. 1997, July 2002 to July 2006.
PESTICIDE DATA: Oct. 1970 to July 1981, Nov. 1992 to Sept. 1999, Oct. 2001 to current year.
RADIOCHEMICAL DATA: Mar. to July 1981, Nov. 1992, Sept. 1996, Sept. 1997.
SEDIMENT DATA: Apr. 1972 to Apr. 1975, Nov. 1992 to Aug. 1995, Sept. 1998 to Sept. 1999, Oct. 2001 to current year.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Oct. 1967 to Sept. 1992, Apr. 1993 to Sept. 1999, Feb. 2015 to Mar. 2020, Dec. 2021 to current year.
pH: Jan. 1977 to Sept. 1992, Apr. 1993 to Sept. 1999, Feb. 2015 to Mar. 2020, Dec. 2021 to current year.
WATER TEMPERATURE: Oct. 1967 to Sept. 1992, Apr. 1993 to Sept. 1999, Feb. 2015 to Mar. 2020, Dec. 2021 to current year.
DISSOLVED OXYGEN: Jan. 1977 to Sept. 1992, Apr. 1993 to Sept. 1999, Feb. 2015 to Mar. 2020, Dec. 2021 to current year.
TURBIDITY: Feb. 2015 to Mar. 2020, Dec. 2021 to current year.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 35.0°C, Aug. 20, 25, 28, 31, 1972; minimum, 1.0°C, Jan. 29, 1968.
SPECIFIC CONDUCTANCE: Maximum, 1,130 microsiemens/cm, Dec. 17, 1977; minimum, 112 microsiemens/cm, Oct. 20, 1984.
pH: Maximum, 9.7 pH units, Aug. 22, 2022; minimum, 6.5 standard units, Jan. 1,2 4, and 5, 1997.
DISSOLVED OXYGEN: Maximum, 15.3 mg/L, Apr. 19, 2022; minimum, 0.0 mg/L, on many days during spring and summer of 1977-1981.
TURBIDITY: Maximum, 1190 FTU Aug. 22, 2022; minimum 1.0 FNU Sept. 12 and other days in WY19.