Susquehanna River at Towanda, Bradford County PA (TOWP1)
Gage Location: Bradford County, PennsylvaniaSite Location: Bradford County, Pennsylvania
Latitude: 41.765Longitude: -76.441Elevation: 694.38 ft. MSLDrainage Area: 7797 Sq. Mi.
Minor Stage: 16 ft. Moderate Stage: 18 ft.Major Stage: 25.1 ft.
First Flood: 1865-03-17Last Flood: 2011-09-08 Crest: 30.52 ft.Datum change: 1938-10-18Number of Floods: 92

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1865-03-1725188000ModerateC1
1893-05-0416109000MinorC1
1902-03-0224.5184000ModerateC1
1904-03-2717.8133000MinorC1
1910-03-0218.4142000ModerateC1
1912-03-3016109000MinorC1
1913-03-2820.7146000ModerateC1
1914-03-2920.4173000ModerateC1
1915-02-2517.5129000MinorC1
1915-07-0917.5129000MinorC1
1916-03-3118.3140000ModerateC1
1918-03-1517.2124000MinorC1
1920-03-1317.2124000MinorC1
1924-04-0717.8133000MinorC1
1924-10-0116.8119000MinorC1
1925-02-1218.7146000ModerateC1
1926-11-1716.6116000MinorC1
1927-10-2017.3126000MinorC1
1929-03-1716.8119000MinorC1
1929-04-2219.9165000ModerateC1
1935-01-1016.599500MinorC1
1935-07-0921.1144000ModerateC1
1936-03-1322.34157000ModerateC1
1936-03-1925.03188000ModerateC1
1939-02-2119.13128000Moderatenone
1940-04-0123.84176000Moderatenone
1940-04-0519.75134000Moderatenone
1940-04-0918.13118000Moderatenone
1941-04-0618.47122000Moderatenone
1942-03-1017.21109000Minornone
1942-12-3123.3171000Moderatenone
1945-03-0416.1599400Minornone
1946-05-2925.08191000Moderatenone
1947-04-0619.6132000Moderatenone
1948-03-1716.71104000Minornone
1948-03-2323.04168000Moderatenone
1950-03-2921.18148000Moderatenone
1950-04-0516.72102000Minornone
1950-11-2717.96115000Minornone
1951-03-3118.91124000Moderatenone
1952-03-1217.59111000Minornone
1955-10-1618.96124000Moderatenone
1956-03-0822.28160000Moderatenone
1956-04-0518.27118000Moderatenone
1958-04-0820.86144000Moderatenone
1959-01-2319.52130000Moderatenone
1960-04-0122.76165000Moderatenone
1960-04-0517.96115000Minornone
1961-02-2721.08147000Moderatenone
1961-04-2619.92134000Moderatenone
1962-04-0117.13106000Minornone
1963-03-2817.77113000Minornone
1964-03-0623.63174000Moderatenone
1964-03-1120.77143000Moderatenone
1970-04-0316.0395400Minornone
1972-03-0317.78112000Minornone
1972-06-2433.43320000Majornone
1975-02-2520.2137000Moderatenone
1975-09-2727.47221000Majornone
1976-02-1816.61101000Minornone
1977-03-1416.0495500Minornone
1977-09-2616.4298900Minornone
1978-01-2716.2997700Minornone
1979-01-0316.2297100Minornone
1979-03-0624.04179000Moderatenone
1983-12-1422.4154000ModerateF2
1984-02-1521.69146000ModerateF2
1984-04-0621.84148000ModerateF2
1986-03-1620.23131000ModerateF2
1989-05-1216.0391400MinorF2
1990-10-2418.29117000ModerateF2
1993-04-0221.99152000ModerateF2
1993-04-1121.31145000ModerateF2
1993-04-1716.43100000MinorF2
1994-03-2517.6111000MinorF2
1996-01-2024.84180000ModerateF2
1996-05-1216.58101000MinorF2
1996-11-0918.11116000ModerateF2
1996-12-0217.63111000MinorF2
1998-01-0917.88113000MinorF2
2000-02-2817.62111000MinorF2
2004-09-1822.26154000ModerateF2
2005-01-1517.37110000MinorF2
2005-04-0423.05162000ModerateF2
2005-11-3016.0398000MinorF2
2006-06-2920.83141000ModerateF2
2007-03-1617.46110000MinorF2
2008-02-0716.58103000MinorF2
2010-01-2617.37110000MinorF2
2011-03-1218.96124000ModerateF2
2011-04-2819.41128000ModerateF2
2011-09-0830.52250000MajorF2



Codes and description

C1|Crest information during this period may be incomplete and therefore was not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information during this period looks reliable despite potential problems. This data was used in frequency calculations.
C3|Crest height estimated by the USGS.
C4|Crest height is from the National Weather Service.
C5|Crest height affected by backwater.
C6|Crest occurred at a previous flood stage that is lower than the current flood stage. The crests below the new flood stage are not used in flood frequency calculations.
C7|Crest from USGS yearly peak and/or date is different than the crest we provide. In many cases MARFC uses crest based on backwater or ice effects.
C8|Crest month or day of occurrence has been estimated by The Middle Atlantic River Forecast Center usually based on nearby gage information.
C9|Crest date (day) in the month is unknown.
F1|Flow is an estimate.
F2|Flow affected by regulation or diversion and in some cases to an unknown degree.
F3|Flow effected by snow-melt, ice jam or debris jam break up.
F4|Flow affected by dam failure.
F5|Flow - All or part of the record affected by urbanization, mining, agricultural changes, channelization or other factors.
G1|Gage height at a different site and/or datum.
G2|Gage is not an official USGS gage with crests provided by the NWS. Crest information looks unreliable and incomplete and not used in flood frequency calculations.
G3|Gage datum changed during this year.
none,No code; Good Data

Updated: 07:31 AM Dec 19, 2014