USGS Water-Year Summary for Site 08080500

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	Available Parameters
	00060 Discharge(Max.,Min.,Mean)
	00065 Gage height(Max.,Min.,Mean)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

08080500 Double Mountain Fork Brazos River near Aspermont, TX

LOCATION - Lat 33°00'29", long 100°10'49" referenced to North American Datum of 1927, Stonewall County, TX, Hydrologic Unit 12050004, on downstream side of bridge on U.S. Highway 83, 0.3 mi downstream from Hitson Creek, 10.0 mi south of Aspermont, and at mile 34.5, measured from confluence with Salt Fork Brazos River, which is at mile 923.2 on the Brazos River.

DRAINAGE AREA - 8,796 mi² of which 6,932 mi² probably is noncontributing.

REVISIONS HISTORY - WSP 733: 1927(M). WDR TX-76-2: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Dec. 1923 to Sept. 1934, June 1939 to current year. PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: Oct. 1948 to Aug. 2002. BIOCHEMICAL DATA: Oct. 1959 to Aug. 2002. BIOLOGICAL DATA: June 1978 to May 1993. PESTICIDE DATA: Mar. to June 1979. RADIOCHEMICAL DATA: Jan. 1981 to Mar. 2000. SEDIMENT DATA: Sept. 1944 to Nov. 1951, June 1978 to May 1993. PERIOD OF DAILY RECORD, Water-Quality.-- SPECIFIC CONDUCTANCE: Oct. 1948 to Nov. 1951, Sept. 1956 to Sept. 1995. WATER TEMPERATURE: Nov. 1949 to Nov. 1951, Sept. 1956 to Sept. 1995.

GAGE - Water-stage recorder. Datum of gage is 1,619.79 ft above NGVD of 1929. Prior to Oct. 3, 2011, at datum 5.00 ft higher. Dec. 3, 1923 to Sept. 30, 1934, nonrecording gage at site 90 ft downstream at datum 2.0 ft higher and June 8, 1939 to Aug. 12, 1972, water-stage recorder at present site at datum 2.0 ft higher. Satellite telemeter at station.

REMARKS - Since water year 1994, at least 10% of contributing drainage area has been regulated by Lake Alan Henry Reservoir. There are small diversions above station for oil field operations. No flow at times most years. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.

EXTREMES FOR PERIOD PRIOR TO REGULATION - WATER YEARS 1925-1934, 1940-1994: Maximum discharge, 91,400 ft³/s Sept. 26, 1955 (gage height, 29.50 ft) from rating curve extended above 75,900 ft³/s; no flow at times most years.

AVERAGE DISCHARGE FOR PERIOD PRIOR TO REGULATION - 68 years (water years 1925-34, 1940-93) prior to completion of Lake Alan Henry Reservoir, 151 ft³/s (109,600 acre-ft/yr).