East Branch Delaware River at Harvard, Delaware County NY (HVDN6)
Gage Location: Delaware County, New YorkSite Location: Delaware County, New York
Latitude: 42.025Longitude: -75.12Elevation: 1007.41 ft. MSLDrainage Area: 458 Sq. Mi.
Minor Stage: 10 ft. Moderate Stage: 12 ft.Major Stage: 15 ft.
First Flood: 1903-10-09Last Flood: 2011-09-07 Crest: 14.73 ft.Datum change: 1977-11-01Number of Floods: 29

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1903-10-09-999942000MissingC1 F1
1936-03-1815.5826200MajorC1 G1
1938-09-2216.9331400MajorC1 G1
1938-12-0611.511100MinorC1 G1
1940-03-3115.0123100MajorC1 G1
1942-05-2314.6221600ModerateC1 G1
1942-12-31-999917400MissingC1 G1
1945-02-2712.7414800ModerateC1 G1
1946-01-0610.839350MinorC1 G1
1948-03-2215.7527000MajorC1 G1
1948-12-3114.4721400ModerateC1 G1
1950-04-0511.1710200MinorC1 G1
1950-11-2615.6926800MajorC1 G1
1952-04-0610.819350MinorC1 G1
1952-12-1213.9617800ModerateC1 G1
1960-04-0510.6511200MinorC1 F2
1984-05-3011.7811100MinorF2
1996-01-1912.6312200ModerateF2
1996-12-0212.7912400ModerateF2
2003-12-2510.1-9999MinorF2
2004-09-1816.0720600MajorF2
2005-04-0316.3221300MajorF2
2006-01-1911.38-9999MinorF2
2006-06-2816.6122100MajorF2
2008-03-0610.879000MinorF2
2008-03-0911.6910500MinorF2
2010-03-2410.297990MinorF2
2011-08-2913.3113900ModerateF2
2011-09-0714.7317100ModerateF2



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