Swatara Creek at Harper Tavern, Lebanon County PA (HTVP1)
Gage Location: Lebanon County, PennsylvaniaSite Location: Lebanon County, Pennsylvania
Latitude: 40.403Longitude: -76.578Elevation: 356.68 ft. MSLDrainage Area: 337 Sq. Mi.
Minor Stage: 9 ft. Moderate Stage: 12 ft.Major Stage: 15 ft.
First Flood: 1889-06-01Last Flood: 2013-01-31 Crest: 9.01 ft.Datum change: 1919-01-01Number of Floods: 153

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1889-06-0125.688000MajorC1 F1
1919-07-219.46750Minornone
1920-03-089.67030Minornone
1920-03-1311.3210000Minornone
1921-05-0510.167640Minornone
1922-03-0810.47880Minornone
1924-01-171211400Moderatenone
1924-10-0113.214200Moderatenone
1925-02-1214.417200Moderatenone
1925-11-139.46750Minornone
1926-01-199.46750Minornone
1926-02-2611.19600Minornone
1926-07-3012.412500Moderatenone
1926-11-1614.617800Moderatenone
1926-11-1910.27960Minornone
1927-10-139.16370Minornone
1927-10-199.26490Minornone
1928-02-1510.68650Minornone
1928-06-30119400Minornone
1929-02-2710.47880Minornone
1929-03-0610.58000Minornone
1929-10-0311.29800Minornone
1930-04-079.36620Minornone
1932-03-289.57020Minornone
1932-11-019.366650Minornone
1933-04-1710.428260Minornone
1933-08-2417.5325300Majornone
1934-12-0211.5410400Minornone
1936-03-1213.7515800Moderatenone
1936-03-189.927710Minornone
1936-04-0610.478620Minornone
1937-10-2311.811000Minornone
1938-12-0610.38350Minornone
1940-03-1510.429660Minornone
1940-03-3110.359660Minornone
1940-04-099.598440Minornone
1940-04-209.227860Minornone
1940-09-0111.5111500Minornone
1942-05-2312.8814000Moderatenone
1942-08-1711.0410300Minornone
1942-09-289.918440Minornone
1942-12-3011.0710300Minornone
1943-11-0913.2514600Moderatenone
1945-07-1911.3510400Minornone
1946-05-289.477620Minornone
1947-05-2211.7211000Minornone
1947-05-269.988310Minornone
1947-07-0810.579190Minornone
1948-12-3111.2110400Minornone
1949-01-0610.138810Minornone
1950-11-2613.0914000Moderatenone
1950-12-0513.3414400Moderatenone
1951-02-0711.1610500Minornone
1951-12-059.167590Minornone
1952-03-1211.7211500Minornone
1952-04-299.448150Minornone
1952-05-1210.7810100Minornone
1952-09-0111.3911000Minornone
1952-11-2211.7911700Minornone
1953-01-249.768690Minornone
1955-08-1912.3512700Moderatenone
1957-04-0610.39390Minornone
1957-12-2110.479680Minornone
1958-02-289.48150Minornone
1959-01-229.678550Minornone
1959-09-039.478280Minornone
1960-09-2010.719980Minornone
1961-02-2611.110600Minornone
1964-01-2610.279350Minornone
1965-02-0811.5611300Minornone
1966-02-1410.068140MinorC7
1968-05-319.087540Minornone
1970-04-0311.9711600Minornone
1971-02-1412.7613100Moderatenone
1972-06-2323.7266700Majornone
1973-09-159.858360Minornone
1973-12-2110.9810000Minornone
1975-03-209.748210Minornone
1975-09-2717.2424700Majornone
1976-01-2712.5712800Moderatenone
1976-10-1012.8913400Moderatenone
1977-03-0510.859820Minornone
1977-03-239.167420Minornone
1978-01-099.98430Minornone
1978-01-2612.4712600Moderatenone
1978-03-2711.3810600Minornone
1979-01-2110.158780Minornone
1979-01-2515.7720500Majornone
1979-02-2410.539340Minornone
1979-02-2611.4210700Minornone
1979-03-069.367680Minornone
1979-09-0610.188820Minornone
1980-03-229.557550Minornone
1981-02-1112.611000Moderatenone
1981-02-249.86440Minornone
1982-02-049.28-9999Minornone
1983-04-1612.8213000Moderatenone
1983-12-1411.199940Minornone
1984-02-159.27160Minornone
1984-05-3010.669160Minornone
1985-02-0311.129840Minornone
1986-03-1510.759390Minornone
1987-09-1412.0311600Moderatenone
1988-05-2011.9311400Minornone
1989-05-069.797790Minornone
1989-05-1711.6810800Minornone
1990-01-309.517420Minornone
1990-12-049.317160Minornone
1992-03-2710.186850Minornone
1993-04-029.367230Minornone
1993-04-119.587510Minornone
1993-11-2915.0915800Majornone
1993-12-0512.1110200Moderatenone
1994-03-2710.818280Minornone
1994-06-079.616690Minornone
1995-01-2110.178800Minornone
1996-01-2015.6719800Majornone
1996-01-2812.4912600Moderatenone
1996-10-2011.8311400Minornone
1996-11-0910.128730Minornone
1996-12-029.768210Minornone
1996-12-1410.188820Minornone
1999-01-249.347630Minornone
2000-03-2211.2310400Minornone
2000-12-1710.949950Minornone
2003-03-2110.399120Minornone
2003-06-0310.289000Minornone
2003-08-119.47700Minornone
2003-12-1210.829800Minornone
2004-09-1917.3625000Majornone
2004-09-2910.098690Minornone
2005-01-1410.298980Minornone
2005-03-2911.0210100Minornone
2005-04-0311.5811000Minornone
2006-06-2818.2828300Majornone
2006-10-2910.589410Minornone
2006-11-1710.559360Minornone
2007-03-0211.6711200Minornone
2008-02-029.327600Minornone
2008-03-0613.8815300Moderatenone
2008-12-1210.268930Minornone
2010-10-0111.7511300minornone
2011-03-0710.669530Minornone
2011-03-1114.3216300Moderatenone
2011-04-1711.7811300Minornone
2011-04-289.267520Minornone
2011-06-1210.138740Minornone
2011-09-0824.4674800Majornone
2011-09-2811.1110200Minornone
2011-11-2310.228660Minornone
2012-05-169.137340Minornone
2012-10-309.287510Minornone
2013-01-319.017190Minornone



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