Passaic River near Millington, Morris County NJ (MILN4)
Gage Location: Somerset County, New JerseySite Location: Morris County, New Jersey
Latitude: 40.68Longitude: -74.529Elevation: 215.6 ft. MSLDrainage Area: 55 Sq. Mi.
Minor Stage: 8 ft. Moderate Stage: 9 ft.Major Stage: 9.8 ft.
First Flood: 1924-04-07Last Flood: 2011-09-08 Crest: 8.04 ft.Datum change: 1925-07-04Number of Floods: 22

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1924-04-0781100MinorC1 G1
1936-03-129.181800Moderatenone
1938-09-228.111040Minornone
1942-08-148.571360Minornone
1948-12-318.711520Minornone
1968-05-298.041070Minornone
1971-08-299.732170Moderatenone
1971-09-148.391200Minornone
1972-06-238.021070Minornone
1972-11-098.141090Minornone
1975-09-278.811580Minornone
1979-01-258.731530Minornone
1979-02-268.191080Minornone
1983-12-148.231140Minornone
1984-04-058.871620Minornone
1986-04-188.041080Minornone
1996-10-209.892290Majornone
1999-09-178.911590Minornone
2007-04-179.351870Moderatenone
2010-03-159.381900Moderatenone
2011-08-2910.262610Majornone
2011-09-088.041040Minornone



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