West Branch Susquehanna River at Lock Haven, Clinton County PA (LHVP1)
Gage Location: Clinton County, PennsylvaniaSite Location: Clinton County, Pennsylvania
Latitude: 41.138Longitude: -77.442Elevation: 534.519 ft. MSLDrainage Area: 3345 Sq. Mi.
Minor Stage: 21 ft. Moderate Stage: 23 ft.Major Stage: 25 ft.
First Flood: 1889-06-01Last Flood: 2010-12-01 Crest: 24.1 ft.Datum change: 1974-10-01Number of Floods: 20

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1889-06-0129.8-9999MajorC1
1898-03-2426.4-9999MajorC1
1902-03-0123.7-9999ModerateC1
1904-03-0424.2-9999ModerateC1
1904-11-0424.2-9999ModerateC1
1918-02-2126.8-9999MajorC1
1923-03-0425.1-9999MajorC1
1926-02-2622.8-9999MinorC1
1936-03-1832.3-9999MajorC1
1940-04-0121.7-9999MinorC1
1942-12-3123.1-9999ModerateC1
1946-05-2826.85-9999MajorC1
1950-11-2627.61-9999MajorC1
1964-03-1026.1-9999MajorC1
1972-06-2331.1-9999MajorC1
1975-09-2622.9291500MinorF2
1984-02-1522.3879000MinorF2
1996-01-2025.7693900MajorF2
2004-09-1828.13111000MajorF2
2010-12-0124.183400ModerateF2



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: 08:00 PM May 28, 2014