West Branch Delaware River at Hale Eddy, Delaware County NY (HLEN6)
Gage Location: Delaware County, New York	Site Location: Delaware County, New York
Latitude: 42.003	Longitude: -75.384	Elevation: 946.46 ft. MSL	Drainage Area: 595 Sq. Mi.
Minor Stage: 11 ft.	Moderate Stage: 13 ft.	Major Stage: 15 ft.
First Flood: 1903-10-10	Last Flood: 2011-09-08 Crest: 14.71 ft.	Datum change: 1963-10-01	Number of Floods: 67

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MINOR FLOODS Date of Flood Crest(ft) 1916-04-02 12.6 1926-11-17 12.5 1927-10-19 11.6 1929-03-15 12.9 1929-04-21 12.2 1932-10-06 11.37 1933-08-24 12.31 1934-03-05 11.43 1935-07-08 12.62 1938-01-25 11.81 1939-02-20 12 1940-04-09 11.74 1942-03-09 11.4 1943-02-24 11.08 1944-03-17 11.94 1947-04-06 11.11 1948-03-17 12.47 1948-03-20 11.77 1948-12-31 12.32 1950-03-28 12.14 1950-04-05 11.22 1950-11-26 11 1951-03-31 11.29 1952-12-11 12.51 1955-08-19 12.67 1956-03-08 11.41 1956-04-05 12.42 1958-04-07 11.92 1959-11-28 12.67 1960-02-12 11.02 1960-03-31 12.7 1962-04-01 11.98 1963-03-27 11.19 1973-06-30 11.57 1975-10-19 11.04 1977-03-14 11.96 1979-03-06 12.21 1993-04-01 11.62 1996-01-19 11.51 2003-03-22 11.15 2004-09-18 12.83

MODERATE FLOODS Date of Flood Crest(ft) 1914-03-28 14.6 1915-07-08 13.9 1920-03-13 13 1921-11-29 13.3 1925-02-12 14.3 1935-11-13 13.1 1936-03-12 13.97 1936-03-18 14.22 1938-08-11 13.75 1940-03-31 14.97 1942-05-23 14.52 1942-12-30 14.95 1950-12-04 13.39 1959-01-22 13.96 1960-04-04 13.42 1961-02-26 13.14 1986-03-15 13.63 2005-04-03 14.12 2011-09-08 14.71

MAJOR FLOODS Date of Flood Crest(ft) 1903-10-10 20.3 1913-03-27 15.3 1924-09-30 15.8 1938-09-22 15.59 1948-03-22 15.69 2006-06-28 19.1

MISSING Date of Flood Crest(ft) 1917-10-30 -9999

Categorical Floods by Month Month Minor After Datum Minor Total Moderate After Datum Moderate Total Major After Datum Major Total Missing After Datum Missing Total January 1 2 0 1 0 0 0 0 February 0 3 0 2 0 0 0 0 March 3 14 1 6 0 2 0 0 April 1 9 1 2 0 0 0 0 May 0 0 0 1 0 0 0 0 June 1 1 0 0 1 1 0 0 July 0 1 0 1 0 0 0 0 August 0 2 0 1 0 0 0 0 September 1 1 1 1 0 2 0 0 October 1 3 0 0 0 1 0 1 November 0 3 0 2 0 0 0 0 December 0 2 0 2 0 0 0 0

Categorical Floods by Season Season Minor Moderate Major Missing Fall 7 3 3 1 Winter 7 5 0 0 Spring 23 9 2 0 Summer 4 2 1 0

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: 08:09 AM Feb 08, 2013