Schuylkill River at Pottstown, PA
River level and flood forecast · Montgomery County
Normal5.1 ftas of Mon 4:15 PM
The river is 7.4 ft below flood stage (12.5 ft).
Forecast to fall to 2.9 ft by Thu, Oct 15, 2 PM.
Flow: 4,270 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 3:02 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 22 ft |
| Moderate flood stage | 18 ft |
| Flood stage | 12.5 ft |
| Action stage | 11 ft |
| Record crest (June 23, 1972) | 29.97 ft |
What floods at each level
From the National Weather Service, highest first.
- 30 ftThe control building at the Sewage Treatment Plant downstream of Pottstown is flooded.
- 28 ftThe PA Route 100 bridge is closed.
- 25 ftThe aeration tanks at the Sewage Treatment Plant downstream of Pottstown is flooded.
- 23 ftThe railroad running along the river is flooded.
- 22 ftThe Hanover Street bridge is closed.
- 20 ftIndustrial Highway and the Keim Street bridge is closed. The Sewage Treatment Plant downstream of Pottstown begins to flood.
- 19 ftBusinesses in Pottstown begin to flood
- 18 ftAdditional roads in Pottstown begin to flood.
- 13 ftPortions of PA Route 724 along the Berks/Chester county line are closed due to high water, specifically Union Township in Berks county and North Coventry Township in Chester county.
- 12.5 ftPortions of PA Route 724 along the Berks/Chester county line begin to flood, specifically Union Township in Berks county and North Coventry Township in Chester county.
- 11 ftSewers in the Pottstown area, due to high and backwater effects, begin to flood.
Highest crests on record
- 29.97 ft — June 23, 1972
- 21 ft — February 28, 1902
- 20.84 ft — June 29, 2006
- 20.15 ft — May 23, 1942
- 19.2 ft — August 24, 1933
Recent crests: 12.22 ft (July 2, 2025) · 13.65 ft (January 10, 2024) · 13.92 ft (December 19, 2023) · 16.79 ft (September 2, 2021) · 13.75 ft (August 5, 2020)
Up and down the river, and nearby
- UpstreamSchuylkill River at Reading, PA
- DownstreamSchuylkill River at Norristown, PA
- Perkiomen Creek at Graterford, PA
- West Branch Perkiomen Creek at Hillegass, PA
- East Branch Perkiomen Creek at Schwenksville, PA
- Perkiomen Creek at East Greenville, PA
- Valley Creek at PA Turnpike Bridge near Valley Forge, PA
- West Branch Brandywine Creek at Honeybrook, PA
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (PTNP1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.