Lehigh River at Bethlehem, Lehigh County PA (BETP1)
Gage Location: Lehigh County, PennsylvaniaSite Location: Lehigh/Northampton County, Pennsylvania
Latitude: 40.615Longitude: -75.379Elevation: 210.9 ft. MSLDrainage Area: 1279 Sq. Mi.
Minor Stage: 16 ft. Moderate Stage: 20 ft.Major Stage: 22 ft.
First Flood: 1902-02-28Last Flood: 2011-03-11 Crest: 17.17 ft.Datum change: 1963-10-01Number of Floods: 15

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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
16 ft to 17 ft426.716 ft or above 15100.0
17 ft to 18 ft426.717 ft or above 1173.3
18 ft to 19 ft213.318 ft or above 746.7
19 ft to 20 ft16.719 ft or above 533.3
20 ft to 21 ft16.720 ft or above 426.7
21 ft to 22 ft00.021 ft or above 320.0
22 ft to 23 ft00.022 ft or above 320.0
23 ft to 24 ft16.723 ft or above 320.0
24 ft to 25 ft16.724 ft or above 213.3
25 ft to 26 ft16.725 ft or above 16.7
Height Above Flood Stage After Datum Change
Height Above FSTotal OccurencePercent of Crest OccurrenceCumulative Total Flood OccurrencePercent of Floods above Listed Value
16 ft to 17 ft228.616 ft or above 7100.0
17 ft to 18 ft342.917 ft or above 571.4
18 ft to 19 ft00.018 ft or above 228.6
19 ft to 20 ft114.319 ft or above 228.6
20 ft to 21 ft114.320 ft or above 114.3
21 ft to 22 ft00.021 ft or above 00.0
22 ft to 23 ft00.022 ft or above 00.0
23 ft to 24 ft00.023 ft or above 00.0
24 ft to 25 ft00.024 ft or above 00.0
25 ft to 26 ft00.025 ft or above 00.0