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USGS Water-Year Summary 2024
08166000 Johnson Creek near Ingram, TX
LOCATION - Lat 30°06'00", long 99°16'58" referenced to North American Datum of 1927, Kerr County, TX, Hydrologic Unit 12100201, on right bank 1.6 mi upstream from Henderson Branch, 3.4 mi northwest of Ingram, 3.8 mi upstream from mouth, and 9.2 mi northwest of Kerrville.
DRAINAGE AREA - 114 mi².
REVISIONS HISTORY - WSP 1058: 1942-45. WSP 2123: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Sept. 1941 to Nov. 1959, Oct. 1961 to Sept. 1993, Apr. 1999 to current year.
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: June 1952, Nov. 1964 to June 2009.
BIOCHEMICAL DATA: Nov. 1964 to June 2009.
BIOLOGICAL DATA: July 2009.
GAGE - Water-stage recorder. Datum of gage is 1721.497 ft. above NAD88 done by RTK on 4/2/21. Prior datum of gage was 1,721.30 ft above NGVD of 1929. Satellite telemeter at station.
REMARKS - Record rated fair for WY. No known regulation. There are numerous small diversions above station for irrigation. 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 1852, 35 ft, July 2, 1932, from information by local resident: discharge 138,000 ft³/s, by slope-area measurement at point 0.5 mi downstream from the Heart of the Hills State Fish Hatchery and 6 or 7 mi upstream from gage. Flood of June 14, 1935 reached a stage of 31 or 32 ft, from information by local resident.
WATER-QUALITY RECORDS
PERIOD OF RECORD -
CHEMICAL DATA: Nov. 1964 to July 1966.
BIOCHEMICAL DATA: Nov. 1964 to July 1966.
