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Hiawatha Paddlewheel Riverboat

West Branch Susquehanna River near Williamsport, PA

River62.1 mi

Around here

Around West Branch Susquehanna River

Kettle Creek Lake17 miFoster Joseph Sayers Dam24 mi20 mi

Data Source: Recreation.gov · Public land: USGS PAD-US

About this river

West Branch Susquehanna River is a 62.1 mile river near Hiawatha Paddlewheel Riverboat in Pennsylvania. Streamflow is measured at the USGS gauge WB Susquehanna River at Karthaus, PA (site 01542500). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1961 to 2026

West Branch Susquehanna River typically runs highest in March, at a median 3,820 cfs, and lowest in September, at 518 cfs. The highest flow on record for any single day is 79,200 cfs, in 1972.

Show the numbers
Typical flow by month at WB Susquehanna River at Karthaus, PA, in cfs
MonthTypical (cfs)Usual range (cfs)
January1,9801,140 to 3,590
February2,0801,160 to 4,070
March3,8202,470 to 6,320
April3,2152,145 to 4,890
May2,4601,600 to 3,690
June1,275832 to 2,380
July821491 to 1,370
August595399 to 973
September518344 to 957
October582345 to 1,270
November1,360778 to 2,205
December2,1001,260 to 3,630

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 53 years of record. Statistics published by the US Geological Survey for WB Susquehanna River at Karthaus, PA (site 01542500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Boat access nearby

8 mapped launches sit in the mapped area of West Branch Susquehanna River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

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