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: 2014-05-01 Crest: 20.25 ft.Datum change: 1923-08-15Number of Floods: 125

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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 ft4737.614 ft or above 125100.0
15 ft to 16 ft2116.815 ft or above 7862.4
16 ft to 17 ft2520.016 ft or above 5745.6
17 ft to 18 ft108.017 ft or above 3225.6
18 ft to 19 ft64.818 ft or above 2217.6
19 ft to 20 ft75.619 ft or above 1612.8
20 ft to 21 ft21.620 ft or above 97.2
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 ft4538.114 ft or above 118100.0
15 ft to 16 ft1916.115 ft or above 7361.9
16 ft to 17 ft2420.316 ft or above 5445.8
17 ft to 18 ft97.617 ft or above 3025.4
18 ft to 19 ft54.218 ft or above 2117.8
19 ft to 20 ft75.919 ft or above 1613.6
20 ft to 21 ft21.720 ft or above 97.6
21 ft to 22 ft21.721 ft or above 75.9
22 ft to 23 ft21.722 ft or above 54.2
23 ft to 24 ft10.823 ft or above 32.5
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 ft10.826 ft or above 21.7
27 ft to 28 ft10.827 ft or above 10.8