Rockaway River below reservoir at Boonton, Morris County NJ (BONN4)
Gage Location: Morris County, New JerseySite Location: Morris County, New Jersey
Latitude: 40.8969Longitude: -74.3947Elevation: 195.68 ft. MSLDrainage Area: 119 Sq. Mi.
Minor Stage: 5 ft. Moderate Stage: 7 ft.Major Stage: 8 ft.
First Flood: 1903-10-10Last Flood: 2014-05-01 Crest: 6.62 ft.Datum change: 1936-11-05Number of Floods: 83

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Height Above Flood Stage for Entire Period of Record
Height Above FSTotal OccurencePercent of Crest OccurrenceCumulative Total Flood OccurrencePercent of Floods above Listed Value
5 ft to 6 ft3542.25 ft or above 83100.0
6 ft to 7 ft2833.76 ft or above 4857.8
7 ft to 8 ft1315.77 ft or above 2024.1
8 ft to 9 ft67.28 ft or above 78.4
9 ft to 10 ft11.29 ft or above 11.2
Height Above Flood Stage After Datum Change
Height Above FSTotal OccurencePercent of Crest OccurrenceCumulative Total Flood OccurrencePercent of Floods above Listed Value
5 ft to 6 ft3442.55 ft or above 80100.0
6 ft to 7 ft2835.06 ft or above 4657.5
7 ft to 8 ft1215.07 ft or above 1822.5
8 ft to 9 ft56.28 ft or above 67.5
9 ft to 10 ft11.29 ft or above 11.2