Ramapo River near Mahwah, Bergen County NJ (MAWN4)
Gage Location: Bergen County, New JerseySite Location: Bergen County, New Jersey
Latitude: 41.098Longitude: -74.163Elevation: 253.1 ft. MSLDrainage Area: 120 Sq. Mi.
Minor Stage: 8 ft. Moderate Stage: 9 ft.Major Stage: 12 ft.
First Flood: 1903-10-09Last Flood: 2012-12-21 Crest: 6.39 ft.Datum change: 1936-12-24Number of Floods: 102

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Year
Before Datum Change
Number of Floods
19031
19040
19050
19060
19070
19080
19090
19101
19110
19120
19130
19140
19150
19160
19170
19180
19190
19200
19210
19220
19230
19240
19250
19260
19271
19280
19290
19300
19310
19320
19331
19340
19350
Year
After Datum Change
Number of Floods
19361
19371
19383
19390
19400
19410
19420
19430
19440
19452
19460
19470
19481
19490
19500
19512
19524
19531
19540
19553
19560
19571
19582
19590
19603
19611
19621
19630
19640
19650
19660
19670
19681
19692
19703
19712
19723
19733
19740
19753
19761
19773
19784
19794
19802
19812
19821
19834
19842
19850
19861
19871
19880
19893
19900
19910
19920
19930
19940
19951
19965
19970
19981
19992
20000
20010
20020
20032
20041
20053
20060
20071
20081
20090
20102
20117
20121
20130