West Branch Susquehanna River at Lewisburg, Northumberland County PA (LWBP1)
Gage Location: Northumberland County, Pennsylvania	Site Location: Union County, Pennsylvania
Latitude: 40.968	Longitude: -76.876	Elevation: 428.2 ft. MSL	Drainage Area: 6847 Sq. Mi.
Minor Stage: 18 ft.	Moderate Stage: 23 ft.	Major Stage: 28 ft.
First Flood: 1865-03-17	Last Flood: 2011-09-08 Crest: 25.91 ft.	Datum change: 1940-07-02	Number of Floods: 39

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Height Above Flood Stage for Entire Period of Record Height Above FS Total Occurence Percent of Crest Occurrence Cumulative Total Flood Occurrence Percent of Floods above Listed Value 18 ft to 19 ft 11 28.2 18 ft or above 39 100.0 19 ft to 20 ft 4 10.3 19 ft or above 28 71.8 20 ft to 21 ft 4 10.3 20 ft or above 24 61.5 21 ft to 22 ft 3 7.7 21 ft or above 20 51.3 22 ft to 23 ft 3 7.7 22 ft or above 17 43.6 23 ft to 24 ft 1 2.6 23 ft or above 14 35.9 24 ft to 25 ft 1 2.6 24 ft or above 13 33.3 25 ft to 26 ft 2 5.1 25 ft or above 12 30.8 26 ft to 27 ft 4 10.3 26 ft or above 10 25.6 27 ft to 28 ft 1 2.6 27 ft or above 6 15.4 28 ft to 29 ft 2 5.1 28 ft or above 5 12.8 29 ft to 30 ft 1 2.6 29 ft or above 3 7.7 30 ft to 31 ft 0 0.0 30 ft or above 2 5.1 31 ft to 32 ft 0 0.0 31 ft or above 2 5.1 32 ft to 33 ft 1 2.6 32 ft or above 2 5.1 33 ft to 34 ft 0 0.0 33 ft or above 1 2.6 34 ft to 35 ft 1 2.6 34 ft or above 1 2.6

Height Above Flood Stage After Datum Change Height Above FS Total Occurence Percent of Crest Occurrence Cumulative Total Flood Occurrence Percent of Floods above Listed Value 18 ft to 19 ft 11 34.4 18 ft or above 32 100.0 19 ft to 20 ft 3 9.4 19 ft or above 21 65.6 20 ft to 21 ft 4 12.5 20 ft or above 18 56.2 21 ft to 22 ft 3 9.4 21 ft or above 14 43.8 22 ft to 23 ft 1 3.1 22 ft or above 11 34.4 23 ft to 24 ft 1 3.1 23 ft or above 10 31.2 24 ft to 25 ft 1 3.1 24 ft or above 9 28.1 25 ft to 26 ft 2 6.2 25 ft or above 8 25.0 26 ft to 27 ft 3 9.4 26 ft or above 6 18.8 27 ft to 28 ft 1 3.1 27 ft or above 3 9.4 28 ft to 29 ft 1 3.1 28 ft or above 2 6.2 29 ft to 30 ft 0 0.0 29 ft or above 1 3.1 30 ft to 31 ft 0 0.0 30 ft or above 1 3.1 31 ft to 32 ft 0 0.0 31 ft or above 1 3.1 32 ft to 33 ft 0 0.0 32 ft or above 1 3.1 33 ft to 34 ft 0 0.0 33 ft or above 1 3.1 34 ft to 35 ft 1 3.1 34 ft or above 1 3.1