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Peak Streamflow for the Nation

USGS 01573000 Swatara Creek at Harper Tavern, PA

Lebanon County, Pennsylvania
Hydrologic Unit Code 02050305
Latitude  40°24'09", Longitude  76°34'39" NAD27
Drainage area 337  square miles
Gage datum 356.68 feet above NGVD29
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Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1889 1889-06-01 25.60 88,0002,7
1919 1919-07-21 9.40 6,750
1920 1920-03-13 11.32 10,000
1921 1921-05-05 10.16 7,640
1922 1922-03-08 10.40 7,880
1923 1923-01-01 6.70 3,930
1924 1924-01-17 12.00 11,400
1925 1925-02-12 14.40 17,200
1926 1926-07-30 12.40 12,500
1927 1926-11-16 14.60 17,800
1928 1928-06-30 11.00 9,400
1929 1929-03-06 10.50 8,000
1930 1929-10-03 11.20 9,800
1931 1931-05-08 5.60 2,950
1932 1932-03-28 9.50 7,020
1933 1933-08-24 17.53 25,300
1934 1934-09-30 7.35 4,820
1935 1934-12-02 11.54 10,400
1936 1936-03-12 13.75 15,800
1937 1937-02-22 7.75 5,200
1938 1937-10-23 11.80 11,000
1939 1938-12-06 10.30 8,350
1940 1940-09-01 11.51 11,500
1941 1941-07-08 5.50 3,440
1942 1942-05-23 12.88 14,000
1943 1942-12-30 11.07 10,300
1944 1943-11-09 13.25 14,600
1945 1945-07-19 11.35 10,400
1946 1946-05-28 9.47 7,620
1947 1947-05-22 11.72 11,000
1948 1948-04-01 7.68 5,420
1949 1948-12-31 11.21 10,400
1950 1950-03-23 7.59 5,630
1951 1950-12-05 13.34 14,400
1952 1952-03-12 11.72 11,500
1953 1952-11-22 11.79 11,700
1954 1953-12-07 8.38 6,870
1955 1955-08-19 12.35 12,700
1956 1955-10-14 8.83 7,370
1957 1957-04-06 10.30 9,390
1958 1957-12-21 10.47 9,680
1959 1959-01-22 9.67 8,550
1960 1960-09-20 10.71 9,980
1961 1961-02-26 11.10 10,600
1962 1962-03-12 8.52 6,980
1963 1963-03-07 8.03 6,410
1964 1964-01-26 10.27 9,350
1965 1965-02-08 11.56 11,300
1966 1966-02-14 9.512 8,140
1967 1967-03-06 8.05 6,180
1968 1968-05-31 9.08 7,540
1969 1969-03-25 7.77 5,810
1970 1970-04-03 11.97 11,600
1971 1971-02-14 12.76 13,100
1972 1972-06-23 23.72 66,700
1973 1973-09-15 9.85 8,360
1974 1973-12-21 10.98 10,000
1975 1975-09-27 17.24 24,700
1976 1976-01-27 12.57 12,800
1977 1976-10-10 12.89 13,400
1978 1978-01-26 12.47 12,600
1979 1979-01-25 15.77 20,500
1980 1980-03-22 9.55 7,550
1981 1981-02-11 12.60 11,000
1982 1982-06-06 8.462 6,230
1983 1983-04-16 12.82 13,000
1984 1983-12-14 11.19 9,940
1985 1985-02-13 11.12 9,840
1986 1986-03-15 10.75 9,390
1987 1987-09-14 12.03 11,600
1988 1988-05-20 11.93 11,400
1989 1989-05-17 11.68 10,800
1990 1990-01-30 9.51 7,420
1991 1990-12-04 9.31 7,160
1992 1992-03-27 10.18 6,850
1993 1993-04-11 9.58 7,510
1994 1993-11-29 15.09 15,800
1995 1995-01-21 10.17 8,800
1996 1996-01-20 15.67 19,800
1997 1996-10-20 11.83 11,400
1998 1998-01-09 8.55 6,620
1999 1999-01-24 9.342 7,630
2000 2000-03-22 11.23 10,400
2001 2000-12-17 10.94 9,950
2002 2002-05-18 5.55 3,440
2003 2003-03-21 10.39 9,120
2004 2004-09-19 17.36 25,000
2005 2005-04-03 11.58 11,000
2006 2006-06-28 18.28 28,300
2007 2007-03-02 11.67 11,200
2008 2008-03-06 13.88 15,300
2009 2008-12-12 10.26 8,930
2010 2010-05-03 6.46 4,310
2011 2011-09-08 24.46 74,800
2012 2011-11-23 10.22 8,660
2013 2012-10-30 9.28 7,510
2014 2014-05-01 8.66 6,750
2015 2015-03-11 8.031 6,0109
2016 2016-02-25 10.83 9,420
2017 2017-04-07 11.15 9,820
2018 2018-07-25 17.15 21,600
2019 2019-04-15 10.80 8,730
2020 2019-11-01 12.43 11,100
2021 2021-09-02 18.01 24,900
2022 2022-02-04 9.96 7,630
2023 2022-12-23 8.20 5,580
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  Peak Gage-Height Qualification Codes.
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  Peak Streamflow Qualification Codes.