Passaic River near Chatham, Morris County NJ (CAMN4)
Gage Location: Morris County, New JerseySite Location: Morris County, New Jersey
Latitude: 40.726Longitude: -74.39Elevation: 193.51 ft. MSLDrainage Area: 100 Sq. Mi.
Minor Stage: 6 ft. Moderate Stage: 8 ft.Major Stage: 10 ft.
First Flood: 1903-10-11Last Flood: 2011-09-09 Crest: 6.25 ft.Datum change: 1937-10-01Number of Floods: 81

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1903-10-117.232310ModerateC1 F1 G1
1905-01-098.333000MajorC1 F1 G1
1907-03-188.032860ModerateC1 F1 G1
1910-03-047.032260MinorC1 F1 G1
1938-07-236.511840Minornone
1938-09-216.861910Minornone
1942-08-096.311470Minornone
1942-08-167.322020Moderatenone
1942-12-316.211420Minornone
1945-02-276.67-9999Minornone
1947-02-246.65-9999Minornone
1947-11-086.051220Minornone
1947-11-126.351410Minornone
1948-02-206.31100Minornone
1949-01-016.781710Minornone
1952-06-016.171290Minornone
1955-08-146.31380Minornone
1955-08-196.311390Minornone
1961-02-226.59-9999Minornone
1961-02-276.171290Minornone
1962-03-126.411450Minornone
1967-03-076.221320Minornone
1968-05-297.92560Moderatenone
1969-07-286.681640Minornone
1970-04-026.371470Minornone
1971-08-288.162540Moderatenone
1971-09-146.721610Minornone
1971-09-186.791650Minornone
1972-06-226.571520Minornone
1972-11-087.221910Moderatenone
1973-02-026.821670Minornone
1973-08-029.363380Majornone
1973-10-296.251330Minornone
1973-12-216.361400Minornone
1975-07-147.42020Moderatenone
1975-09-278.142520Moderatenone
1975-10-196.11240Minornone
1977-03-226.351390Minornone
1977-11-086.581520Minornone
1978-01-106.571520Minornone
1978-08-126.611540Minornone
1979-01-276.41420Minornone
1979-02-266.881710Minornone
1979-05-256.21300Minornone
1979-09-066.131260Minornone
1980-03-256.321370Minornone
1982-01-046.11240Minornone
1982-02-036.011190Minornone
1983-03-216.341380Minornone
1983-04-106.241320Minornone
1983-04-176.141260Minornone
1983-12-146.671580Minornone
1984-04-067.261930Moderatenone
1984-05-316.671580Minornone
1984-07-076.041210Minornone
1986-04-186.631550Minornone
1987-04-046.041210Minornone
1988-07-266.071220Minornone
1989-09-206.261330Minornone
1989-10-226.011190Minornone
1990-10-136.121250Minornone
1992-06-056.871700Minornone
1993-03-266.081230Minornone
1993-04-016.131260Minornone
1994-01-307.021970Minornone
1996-01-196.381400Minornone
1996-01-2761180Minornone
1996-10-217.492080Moderatenone
1996-12-076.081230Minornone
1998-05-116.191290Minornone
1999-09-177.62210Moderatenone
2003-02-246.361408Minornone
2005-04-026.071240Minornone
2005-10-106.111260Minornone
2005-10-126.661590Minornone
2007-04-177.452110Moderatenone
2010-03-157.912730Moderatenone
2010-03-306.341400Minornone
2011-03-116.411620Minornone
2011-08-297.762620Moderatenone
2011-09-096.251510Minornone



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