Susquehanna River at Danville, Montour County PA (DANP1)
Gage Location: Montour County, PennsylvaniaSite Location: Montour County, Pennsylvania
Latitude: 40.958Longitude: -76.619Elevation: 431.29 ft. MSLDrainage Area: 11220 Sq. Mi.
Minor Stage: 20 ft. Moderate Stage: 23 ft.Major Stage: 30 ft.
First Flood: 1865-03-18Last Flood: 2011-09-09 Crest: 31.55 ft.Datum change: 1939-06-29Number of Floods: 43

Click on table headers to sort
Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1865-03-1828-9999ModerateC1
1901-12-1622.8188000MinorC1
1902-03-0326.9243000ModerateC1
1904-01-2526.2-9999ModerateC1
1904-02-1024.6-9999ModerateC1
1904-03-0930.71-9999MajorC1 C4
1910-03-0321165000MinorC1
1913-03-2823.11192000ModerateC1
1914-03-2922.6186000MinorC1
1916-04-0221.8175000MinorC1
1920-03-1420.9170000MinorC1
1925-02-1320.3162000MinorC1
1929-04-2320.35163000MinorC1
1935-07-1120153000MinorC1
1936-03-2027.42250000ModerateC1
1940-04-0225.25222000Moderatenone
1943-01-0124204000Moderatenone
1946-05-2925.98234000Moderatenone
1948-03-2422.63184000Minornone
1950-03-3021.81168000Minornone
1956-03-0922.47175000Minornone
1958-04-0821.87169000Minornone
1960-04-0223.92198000Moderatenone
1961-02-2821.72167000Minornone
1964-03-1125.13261000Moderatenone
1972-06-2532.16363000Majornone
1975-09-2827.52257000Moderatenone
1979-03-0723.93188000ModerateC5
1983-04-1720.53149000MinorC5
1984-04-0724.14194000ModerateC5
1986-03-1622.68173000MinorC5
1993-04-0323.97187000Moderatenone
1994-03-2620.15139000Minornone
1996-01-2125.96209000Moderatenone
1998-01-1020.43143000Minornone
2004-09-1926.22220000ModerateC5
2005-01-1520.56149000Minornone
2005-03-3020.86154000Minornone
2005-04-0424.28202000ModerateC5
2006-06-2828.19260000ModerateC5
2011-03-1222.57170000Minornone
2011-04-2922.41169000Minornone
2011-09-0931.55311000Majornone



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