Raritan River at Manville, Somerset County NJ (MNVN4)
Gage Location: Somerset County, New JerseySite Location: Somerset County, New Jersey
Latitude: 40.555Longitude: -74.584Elevation: 20.61 ft. MSLDrainage Area: 490 Sq. Mi.
Minor Stage: 14 ft. Moderate Stage: 17 ft.Major Stage: 20 ft.
First Flood: 1903-10-10Last Flood: 2013-06-08 Crest: 15.24 ft.Datum change: 1923-08-15Number of Floods: 124

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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
14 ft to 15 ft4737.914 ft or above 124100.0
15 ft to 16 ft2116.915 ft or above 7762.1
16 ft to 17 ft2520.216 ft or above 5645.2
17 ft to 18 ft108.117 ft or above 3125.0
18 ft to 19 ft64.818 ft or above 2116.9
19 ft to 20 ft75.619 ft or above 1512.1
20 ft to 21 ft10.820 ft or above 86.5
21 ft to 22 ft21.621 ft or above 75.6
22 ft to 23 ft21.622 ft or above 54.0
23 ft to 24 ft10.823 ft or above 32.4
24 ft to 25 ft00.024 ft or above 21.6
25 ft to 26 ft00.025 ft or above 21.6
26 ft to 27 ft10.826 ft or above 21.6
27 ft to 28 ft10.827 ft or above 10.8
Height Above Flood Stage After Datum Change
Height Above FSTotal OccurencePercent of Crest OccurrenceCumulative Total Flood OccurrencePercent of Floods above Listed Value
14 ft to 15 ft4538.514 ft or above 117100.0
15 ft to 16 ft1916.215 ft or above 7261.5
16 ft to 17 ft2420.516 ft or above 5345.3
17 ft to 18 ft97.717 ft or above 2924.8
18 ft to 19 ft54.318 ft or above 2017.1
19 ft to 20 ft76.019 ft or above 1512.8
20 ft to 21 ft10.920 ft or above 86.8
21 ft to 22 ft21.721 ft or above 76.0
22 ft to 23 ft21.722 ft or above 54.3
23 ft to 24 ft10.923 ft or above 32.6
24 ft to 25 ft00.024 ft or above 21.7
25 ft to 26 ft00.025 ft or above 21.7
26 ft to 27 ft10.926 ft or above 21.7
27 ft to 28 ft10.927 ft or above 10.9