Susquehanna River at Bloomsburg, Columbia County PA (BMBP1)
Gage Location: Columbia County, PennsylvaniaSite Location: Columbia County, Pennsylvania
Latitude: 40.996Longitude: -76.421Elevation: 451.37 ft. MSLDrainage Area: 10560 Sq. Mi.
Minor Stage: 19 ft. Moderate Stage: 22 ft.Major Stage: 28 ft.
First Flood: 1850-07-19Last Flood: 2011-09-09 Crest: 32.75 ft.Datum change: 1995-03-27Number of Floods: 26

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1902-03-0326.9243000ModerateC1 F1
1904-03-0932.7-9999MajorC1 C4
1913-03-2822.3192000ModerateC1 F1
1936-03-2027.8250000ModerateC1 F1
1940-04-0225.7222000ModerateC1 F1
1943-01-0123.4204000ModerateC1 F1
1946-05-2925.2234000ModerateC1 F1
1948-03-2422.2184000ModerateC1 F1
1960-04-0222.8198000ModerateC1 F1
1964-03-1124.7216000ModerateC1 F1
1972-06-2531.2350000MajorC1 F1
1975-09-2727.5275000ModerateC1 F1

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