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 looks unreliable and incomplete and not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information 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: 07:20 AM Nov 12, 2013