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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Date of Flood Crest(ft) Streamflow(cfs) Category Code 1903-10-10 20.3 46000 Major *** 1913-03-27 15.3 25000 Major *** 1914-03-28 14.6 21300 Moderate *** 1915-07-08 13.9 20000 Moderate *** 1916-04-02 12.6 17400 Minor *** 1917-10-30 -9999 18300 Missing *** 1920-03-13 13 18100 Moderate *** 1921-11-29 13.3 19000 Moderate *** 1924-09-30 15.8 26500 Major *** 1925-02-12 14.3 22000 Moderate *** 1926-11-17 12.5 16600 Minor *** 1927-10-19 11.6 14000 Minor *** 1929-03-15 12.9 17800 Minor *** 1929-04-21 12.2 17300 Minor *** 1932-10-06 11.37 14600 Minor *** 1933-08-24 12.31 16000 Minor *** 1934-03-05 11.43 13000 Minor *** 1935-07-08 12.62 19000 Minor *** 1935-11-13 13.1 20900 Moderate *** 1936-03-12 13.97 24600 Moderate *** 1936-03-18 14.22 25900 Moderate *** 1938-01-25 11.81 15900 Minor *** 1938-08-11 13.75 19600 Moderate *** 1938-09-22 15.59 25600 Major *** 1939-02-20 12 14300 Minor *** 1940-03-31 14.97 23400 Moderate *** 1940-04-09 11.74 13700 Minor *** 1942-03-09 11.4 12800 Minor *** 1942-05-23 14.52 21900 Moderate *** 1942-12-30 14.95 23300 Moderate *** 1943-02-24 11.08 12100 Minor *** 1944-03-17 11.94 14200 Minor *** 1947-04-06 11.11 12800 Minor *** 1948-03-17 12.47 16500 Minor *** 1948-03-20 11.77 14400 Minor *** 1948-03-22 15.69 28900 Major *** 1948-12-31 12.32 16000 Minor *** 1950-03-28 12.14 15500 Minor *** 1950-04-05 11.22 13000 Minor *** 1950-11-26 11 12600 Minor *** 1950-12-04 13.39 19500 Moderate *** 1951-03-31 11.29 13200 Minor *** 1952-12-11 12.51 16600 Minor *** 1955-08-19 12.67 16000 Minor *** 1956-03-08 11.41 12800 Minor *** 1956-04-05 12.42 15300 Minor *** 1958-04-07 11.92 14100 Minor *** 1959-01-22 13.96 20100 Moderate *** 1959-11-28 12.67 16000 Minor *** 1960-02-12 11.02 11700 Minor *** 1960-03-31 12.7 16000 Minor *** 1960-04-04 13.42 18200 Moderate *** 1961-02-26 13.14 17300 Moderate *** 1962-04-01 11.98 14200 Minor *** 1963-03-27 11.19 12300 Minor *** 1973-06-30 11.57 13200 Minor (6) 1975-10-19 11.04 11900 Minor (6) 1977-03-14 11.96 14200 Minor (6) 1979-03-06 12.21 14800 Minor (6) 1986-03-15 13.63 18700 Moderate (6) 1993-04-01 11.62 13300 Minor (6) 1996-01-19 11.51 13200 Minor (6) 2003-03-22 11.15 12000 Minor (6) 2004-09-18 12.83 17500 Minor (6) 2005-04-03 14.12 21500 Moderate (6) 2006-06-28 19.1 43400 Major (6) 2011-09-08 14.71 22600 Moderate none

MARFC Codes
Code Description
(!!!) Datum changed during this year.
(1) Backwater Effect.
(2) 15.77 ft also occurred on 11/25/1950 but only counted as one flood.
(3) Estimated from currrent USGS rating table.
(4) Estimated height from the USGS.
(5) Gage height at a different site and/or datum
(6) Discharge affected by Regulation or Diversion
(7) Due to changes, prior floods were based on present flood stage. Therefore, flood data could possibly be incomplete.
(8) Gage is a staff gage and not the offical USGS gage. Therefore, some floods may be missing from our study.
(9) Discharge effected by snow-melt, ice jam or debris jam break up
(A) Discharge affected to unknown degree by regulation or diversion.
(B) Month or day of occurrence is unknown or not exact.
(C) All or part of the record affected by urbanization, mining, agricultural changes, channelization, or other factors.
(D) Crest height adjusted to current datum.
(E) Estimated discharge.
(F) Only annual maximum peak available for this year.
(O) This flood occurred at a previous flood stage that is lower than the current flood stage. This is only a historical flood.
** Crest information looks reasonable despite potential problems. This data was used in our study.
*** Crest information looks unreliable and incomplete and was not used in our flood frequency study.
**** Gauge was discontinued in 2004. 2004 and later was not used in our study.
none No code

Updated: 08:58 AM Jun 28, 2012