Lehigh River at Walnutport, Northampton County PA (WNTP1)
Gage Location: Northampton County, PennsylvaniaSite Location: Northampton County, Pennsylvania
Latitude: 40.757Longitude: -75.603Elevation: 350.27 ft. MSLDrainage Area: 889 Sq. Mi.
Minor Stage: 8 ft. Moderate Stage: 12 ft.Major Stage: 16 ft.
First Flood: 1942-05-23Last Flood: 2011-09-07 Crest: 8.01 ft.Datum change: 1946-10-01Number of Floods: 47

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Year
Before Datum Change
Number of Floods
19421
19430
19440
19450
Year
After Datum Change
Number of Floods
19460
19471
19481
19490
19502
19510
19524
19530
19540
19552
19560
19571
19580
19590
19600
19610
19620
19630
19640
19651
19660
19670
19680
19691
19702
19710
19721
19732
19740
19750
19761
19770
19781
19792
19800
19811
19820
19832
19840
19851
19861
19871
19880
19891
19901
19910
19920
19933
19940
19950
19962
19970
19980
19990
20000
20010
20020
20032
20041
20051
20062
20070
20081
20090
20102
20112
20120
20130