USGS Water-Year Summary 2021
08197500 Frio River below Dry Frio River near Uvalde, TX
LOCATION - Lat 29°14'44", long 99°40'27" referenced to North American Datum of 1927, Uvalde County, TX, Hydrologic Unit 12110106, on right bank 1.1 mi upstream from Farm Road 1023, 5.7 mi downstream from Dry Frio River, 6.3 mi downstream from bridge on U.S. Highway 90, 7.2 mi northeast of Uvalde, and 194.5 mi upstream from mouth.
DRAINAGE AREA - 631 mi².
- WDR TX-83-3: Drainage area.
PERIOD OF RECORD - Oct. 1953 to current year. Sum of records published as Frio River at Knippa (discontinued station 08195700) and Dry Frio River at Knippa (discontinued station 08196500) for period Sept. 1952 to Sept. 1953 is equivalent to record for this station.
GAGE - Water-stage recorder. Datum of gage is 882.47 ft above NGVD of 1929. Satellite telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage since at least 1887, about 35 ft in 1894. Flood of July 1, 1932, reached a stage of about 30 ft. A higher flood than that of 1894 occurred prior to 1887, from information by local residents.