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Peak Streamflow for Texas

USGS 08153500 Pedernales Rv nr Johnson City, TX

Blanco County, Texas
Hydrologic Unit Code 12090206
Latitude  30°17'30", Longitude  98°23'57" NAD27
Drainage area 901  square miles
Contributing drainage area 901  square miles
Gage datum 1,096.70 feet above sea level NGVD29
Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1940 Oct. 25, 1939 17.53 42,900
1941 Apr. 27, 1941 12.83 21,100
1942 Aug. 22, 1942 14.10 26,600
1943 Oct. 18, 1942 14.25 27,000
1944 Aug. 30, 1944 26.10 104,000
1945 Sep. 29, 1945 13.96 25,500
1946 May 25, 1946 9.40 9,680
1947 Dec. 11, 1946 9.57 10,200
1948 Apr. 13, 1948 8.78 8,380
1949 Apr. 24, 1949 8.74 8,170
1950 Aug. 28, 1950 5.79 2,910
1951 Jun. 12, 1951 10.18 11,800
1952 Sep. 11, 1952 42.50 441,000
1953 Dec. 19, 1952 14.70 32,200
1954 Apr. 30, 1954 7.22 5,340
1955 Sep. 24, 1955 10.67 13,600
1956 Oct. 3, 1955 2.91 164
1957 Apr. 24, 1957 24.80 125,000
1958 Jun. 17, 1958 17.45 50,200
1959 Jun. 26, 1959 17.00 47,000
1960 Oct. 4, 1959 26.10 142,000
1961 Oct. 29, 1960 11.08 15,600
1962 Jun. 7, 1962 8.83 8,550
1963 May 28, 1963 7.15 5,270
1964 Mar. 19, 1964 9.58 10,600
1965 Sep. 22, 1965 14.68 32,200
1966 Oct. 18, 1965 8.40 7,550
1967 Sep. 15, 1967 12.44 5,8305
1968 Jan. 20, 1968 15.53 27,9005
1969 Jun. 24, 1969 14.04 12,7005
1970 May 23, 1970 16.30 28,9005
Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1971 Aug. 13, 1971 13.33 9,0705
1972 Oct. 19, 1971 17.15 35,7005
1973 Jul. 15, 1973 15.33 21,4005
1974 May 1, 1974 17.94 44,4005
1975 Oct. 31, 1974 21.95 90,1005
1976 May 26, 1976 14.66 16,8005
1977 Apr. 15, 1977 22.60 98,0005
1978 Aug. 3, 1978 24.90 127,0005
1979 Jun. 1, 1979 19.75 64,2005
1980 May 16, 1980 11.60 2,7905
1981 Jun. 4, 1981 18.43 49,6005
1982 Oct. 13, 1981 16.67 32,3005
1983 May 11, 1983 19.60 62,6005
1984 Nov. 6, 1983 11.11 1,2705
1985 Dec. 16, 1984 14.31 14,6005
1986 Oct. 19, 1985 20.59 74,0005
1987 Jul. 17, 1987 17.98 44,8005
1988 May 21, 1988 14.27 14,3005
1989 May 17, 1989 15.63 23,7005
1990 May 3, 1990 15.75 24,6005
1991 May 8, 1991 11.19 7,2205
1992 Dec. 20, 1991 21.32 82,7005
1993 Sep. 13, 1993 14.99 19,0005
1994 May 13, 1994 16.37 29,7005
1995 May 30, 1995 21.38 83,4005
1996 Nov. 1, 1995 11.73 2,8505
1997 Jun. 22, 1997 25.16 94,9005
1998 Mar. 16, 1998 17.65 29,5005
1999 Oct. 18, 1998 15.65 18,9005
2000 May 2, 2000 10.77 3565
2001 Sep. 5, 2001 15.13 16,4005
Peak Streamflow Qualification Codes.
  • 5 -- Discharge affected to unknown degree by Regulation or Diversion