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Water-Year Summary for Site 08205500

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

Water year 2023: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2023
08205500 Frio River near Derby, TX
LOCATION - Lat 28°44'11", long 99°08'40" referenced to North American Datum of 1927, Frio County, TX, Hydrologic Unit 12110106, on right bank 17 ft downstream from centerline of railroad tracks, 35 ft right of the Missouri Pacific Railroad Co. bridge abutment, 167 ft downstream from Interstate Highway 35, 917 ft downstream from Leona River, 2.5 mi south of Derby, and 115.1 mi upstream from mouth.
DRAINAGE AREA - 3,429 mi².
REVISIONS HISTORY - WSP 568: 1915-16, 1918-22. WSP 1312: 1917-18(M). WSP 1923: 1954. WDR TX-83-3: Drainage area.
PERIOD OF RECORD - Aug. 1915 to current year. PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: Mar. 1964 to May 1968. BIOCHEMICAL DATA: Mar. 1964 to Dec. 1967.
GAGE - Water-stage recorder and concrete control. Datum of gage is 449.05 NAVD88 or 449.11 ft above NGVD of 1929. Aug. 1, 1915, to Apr. 21, 1931, nonrecording gage, and Apr. 22, 1931, to Mar. 6, 1940, water-stage recorder at same site and datum. Mar. 7, 1940, to May 4, 1972, water-stage recorder, and May 5 to Nov. 1, 1972, nonrecording gage at site 167 ft upstream at same datum. Satellite telemeter at station.
REMARKS - No known regulation. Part of the flow of the Frio River and its headwater tributaries enters the Edwards and associated limestones in the Balcones Fault Zone upstream from U.S. Highway 90. There is considerable loss of flow into various permeable formations downstream from the Balcones Fault Zone. There are many small diversions for irrigation above station. No flow at times. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage since at least 1860, that of July 4, 1932, from information by local resident.