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: 2013-06-08 Crest: 5.44 ft.Datum change: 1936-11-05Number of Floods: 82

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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 ft3542.75 ft or above 82100.0
6 ft to 7 ft2732.96 ft or above 4757.3
7 ft to 8 ft1315.97 ft or above 2024.4
8 ft to 9 ft67.38 ft or above 78.5
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 ft3443.05 ft or above 79100.0
6 ft to 7 ft2734.26 ft or above 4557.0
7 ft to 8 ft1215.27 ft or above 1822.8
8 ft to 9 ft56.38 ft or above 67.6
9 ft to 10 ft11.39 ft or above 11.3