Millstone River at Blackwells Mills, Somerset County NJ (BKWN4)
Gage Location: Somerset County, New JerseySite Location: Somerset County, New Jersey
Latitude: 40.475Longitude: -74.576Elevation: 26.97 ft. MSLDrainage Area: 258 Sq. Mi.
Minor Stage: 9 ft. Moderate Stage: 10 ft.Major Stage: 15 ft.
First Flood: 1924-04-07Last Flood: 2014-05-01 Crest: 15.87 ft.Datum change: 1928-08-17Number of Floods: 147

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Year
Before Datum Change
Number of Floods
19241
19251
19261
19272
Year
After Datum Change
Number of Floods
19280
19290
19300
19310
19323
19331
19341
19350
19362
19370
19382
19391
19402
19410
19421
19430
19443
19450
19461
19470
19481
19490
19501
19511
19522
19532
19540
19553
19560
19570
19581
19590
19601
19612
19622
19630
19640
19650
19662
19672
19681
19692
19701
19712
19722
19734
19741
19754
19761
19774
19783
19796
19801
19810
19822
19834
19844
19850
19864
19873
19880
19894
19900
19910
19922
19932
19942
19950
19966
19971
19984
19992
20000
20011
20020
20035
20042
20053
20061
20072
20083
20093
20102
20118
20120
20131
20142