| 25.0 | Levees in the Bethleham area topped. Major flooding begins | | 15.0 | The islands in the Allentown area begin to flood | | 14.0 | Flooding begins upstream in Allentown. Backwater begins to effect the Little Lehigh and Jordan Creeks |
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1) 25.90 ft on 05/23/1942
2) 24.90 ft on 02/28/1902
3) 23.38 ft on 08/19/1955
4) 20.02 ft on 06/23/1972
5) 19.70 ft on 09/18/2004
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1) 0.60 ft on 10/15/1910
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