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West Branch Lackawaxen River in Pennsylvania

River13.7 mi
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Around here

Around West Branch Lackawaxen River

Prompton Lake1 mi2 mi

Data Source: Recreation.gov ยท Source: USGS GNIS ยท Source: National Park Service. No claim to original U.S. Government works. ยท Public land: USGS PAD-US

About this river

West Branch Lackawaxen River is a 13.7 mile river. Streamflow is measured at the USGS gauge West Branch Lackawaxen River at Prompton, PA (site 01429000). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1961 to 2026

West Branch Lackawaxen River typically runs highest in April, at a median 155 cfs, and lowest in September, at 22 cfs. The highest flow on record for any single day is 3,260 cfs, in 2006.

Show the numbers
Typical flow by month at West Branch Lackawaxen River at Prompton, PA, in cfs
MonthTypical (cfs)Usual range (cfs)
January7245 to 145
February7646 to 129
March14694 to 250
April155101 to 256
May10358 to 161
June4332 to 79
July2917 to 44
August2514 to 43
September2214 to 39
October3617 to 70
November6633 to 131
December9056 to 155

Typical is the median of each monthโ€™s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 66 years of record. Statistics published by the US Geological Survey for West Branch Lackawaxen River at Prompton, PA (site 01429000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Boat access nearby

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

  • Prompton DamPrompton LakePublic
  • White Oak PondWhite Oak PondPublic
  • Lake Alden - Long PondLong PondPublic

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