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Peak Streamflow for the Nation

USGS 06485500 BIG SIOUX RIVER AT AKRON, IA

Plymouth County, Iowa
Hydrologic Unit Code 10170203
Latitude  42°50'15.1", Longitude  96°33'41.8" NAD27
Drainage area 7,879  square miles
Contributing drainage area 6,995  square miles
Gage datum 1,119.53 feet above NAVD88
Output formats
Table
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Tab-separated file
peakfq (watstore) format
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Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1929 1929-03-15 18.63 20,800
1930 1930-06-06 9.92 3,740
1931 1931-08-09 5.60 1,390
1932 1932-03-01 18.04 16,900
1933 1933-09-05 17.80 14,200
1934 1934-06-08 16.08 10,600
1935 1935-03-10 10.062 3,000
1936 1936-03-12 18.63 18,000
1937 1937-05-26 13.14 5,760
1938 1938-07-04 17.53 12,700
1939 1939-03-17 15.451 6,300
1940 1940-04-02 17.32 11,700
1941 1941-03-25 13.52 5,820
1942 1942-06-04 19.23 21,400
1943 1943-06-18 17.35 12,000
1944 1944-02-29 18.24 15,900
1945 1945-03-14 17.42 12,300
1946 1946-03-05 15.28 8,970
1947 1947-06-15 16.84 10,500
1948 1948-03-21 16.872 10,800
1949 1949-04-09 17.11 11,400
1950 1950-06-18 13.40 5,450
1951 1951-04-06 19.66 28,800
1952 1952-04-01 19.75 33,000
1953 1953-06-08 19.33 21,800
1954 1954-06-22 19.95 21,700
1955 1955-03-11 12.25 4,940
1956 1956-07-17 8.13 1,840
1957 1957-06-21 19.57 19,400
1958 1958-04-08 5.98 1,120
1959 1959-06-03 16.93 8,430
1960 1960-04-01 21.56 49,500
1961 1961-03-05 16.18 9,050
1962 1962-03-31 22.08 54,300
1963 1963-08-07 7.59 1,650
1964 1964-04-04 9.30 2,540
1965 1965-04-08 20.85 21,000
1966 1966-02-12 19.851 16,500
1967 1967-03-05 14.791 5,300
1968 1968-06-27 4.80 635
1969 1969-04-09 22.99 80,800
1970 1970-05-30 16.30 8,580
1971 1971-06-11 15.692 7,310
1972 1972-06-08 17.02 10,500
1973 1973-03-05 18.741 12,500
1974 1974-06-22 9.76 3,000
1975 1975-05-01 9.76 2,920
1976 1976-03-15 10.312 3,250
1977 1977-03-15 13.60 5,270
1978 1978-03-22 19.88 18,200
1979 1979-03-25 21.741 30,500
1980 1979-11-04 17.10 8,730
1981 1981-06-17 10.75 3,180
1982 1982-02-25 16.451 6,500
1983 1983-06-22 21.49 34,500
1984 1984-06-23 22.27 52,200
1985 1985-04-26 20.29 21,000
1986 1986-09-25 21.98 23,100
1987 1987-03-27 18.50 12,200
1988 1988-03-12 10.822 3,110
1989 1989-03-12 15.361 4,1002
1990 1990-06-17 14.45 5,550
1991 1991-06-15 9.26 2,270
1992 1992-07-06 18.00 9,710
1993 1993-05-10 23.05 66,700
1994 1994-06-16 21.08 20,400
1995 1995-04-22 20.88 22,200
1996 1996-06-23 17.79 11,000
1997 1997-04-09 22.63 31,300
1998 1998-04-10 15.93 7,170
1999 1999-04-13 17.90 10,400
2000 2000-05-21 13.85 5,280
2001 2001-04-26 23.38 40,400
2002 2002-04-02 11.65 3,660
2003 2003-07-09 11.02 3,400
2004 2004-06-02 17.87 11,000
2005 2005-06-06 16.20 7,640
2006 2006-04-10 22.32 27,800
2007 2007-03-16 21.76 24,700
2008 2008-06-08 20.22 17,300
2009 2009-03-26 12.992 4,840
2010 2010-09-27 22.88 38,300
2011 2011-03-26 20.39 19,700
2012 2012-05-11 18.30 12,100
2013 2013-05-28 20.54 19,300
2014 2014-06-18 25.46 108,000
2015 2015-07-09 13.71 5,430
2016 2016-05-03 18.20 11,300
2017 2017-05-23 16.11 7,940
2018 2018-06-23 23.45 44,800
2019 2019-03-16 23.94 61,900
2020 2020-03-31 17.67 12,700
2021 2021-08-30 11.45 4,100
2022 2022-06-01 14.03 6,620
2023 2023-04-14 17.97 12,300
2024 2024-06-22 27.35 175,000
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  Peak Gage-Height Qualification Codes.
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  Peak Streamflow Qualification Codes.