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Perkiomen Creek at Graterford

Critical Stages
8' - Action
11' - Flood
13' - Moderate
16' - Major

Latest Observation

Updated: 5:15 PM EST 12/16/25

Status: No Flooding

Stage: 1.18 ft

Flow: 0.106 kcfs

Forecast

TimeStage (ft)Flow (kcfs)
7 PM 12/16 1.2 0.111
1 AM 12/17 1.2 0.111
7 AM 12/17 1.2 0.111
1 PM 12/17 1.2 0.111
7 PM 12/17 1.2 0.111
1 AM 12/18 1.2 0.111
7 AM 12/18 1.2 0.111
1 PM 12/18 1.2 0.111
7 PM 12/18 1.3 0.139
1 AM 12/19 1.8 0.326
7 AM 12/19 3.3 1.53
TimeStage (ft)Flow (kcfs)
5:15 PM 12/16 1.18 0.106
5:00 PM 12/16 1.18 0.106
4:45 PM 12/16 1.18 0.106
4:30 PM 12/16 1.18 0.106
4:15 PM 12/16 1.18 0.106
4:00 PM 12/16 1.18 0.106
3:45 PM 12/16 1.19 0.108
3:30 PM 12/16 1.19 0.108
3:15 PM 12/16 1.19 0.108
3:00 PM 12/16 1.19 0.108
2:45 PM 12/16 1.19 0.108
2:30 PM 12/16 1.18 0.106
2:15 PM 12/16 1.17 0.103
2:00 PM 12/16 1.17 0.103
1:45 PM 12/16 1.17 0.103
1:30 PM 12/16 1.17 0.103
12:15 PM 12/16 1.19 0.108
12:00 PM 12/16 1.2 0.111
11:45 AM 12/16 1.23 0.119
11:30 AM 12/16 1.28 0.133
11:15 AM 12/16 1.34 0.151
11:00 AM 12/16 1.38 0.164
10:45 AM 12/16 1.41 0.174
10:30 AM 12/16 1.41 0.174
10:15 AM 12/16 1.42 0.177
10:00 AM 12/16 1.42 0.177
9:45 AM 12/16 1.42 0.177
9:30 AM 12/16 1.41 0.174
9:15 AM 12/16 1.41 0.174
9:00 AM 12/16 1.41 0.174
Hydrograph for Perkiomen Creek at Graterford
19' - The Schwenksville Sewer and Water Plant floods as does Route 73/Haldeman Road.
18' - Smaller tributaries are affected by high water from the Perkiomen. Flooding is possible near the Route 113 Bridge in Perkiomen Township.
16' - Collegeville businesses on Route 29, between East Ninth Avenue and East Main Street, begin to take on water.
15' - East Main Street in Collegeville floods.
14' - Storm sewers back up in Collegeville and flood Route 29.
13' - First Avenue in Collegeville becomes impassable.
12' - Portions of Central Perkiomen Park in Collegeville are flooded. Flood waters expand onto and to the west of First Avenue in Collegeville.
11' - Graterford Road and Penitentiary Bridge are closed due to flooding.
8' - Park Avenue in Schwenksville is flooded. The Perkiomen Trail is flooded in Perkiomen Township at Plank Road and Route 113.
DateStage (ft)
Sep 2, 2021 24.23
Aug 5, 2020 19.32
Jul 9, 1935 18.26
Aug 28, 2011 18.2
Jun 22, 1972 17.08
Aug 23, 1933 16.65
Sep 16, 1999 16.59
Jan 19, 1996 16.45
May 1, 2014 16.2
Jun 2, 1946 16.2
Jul 12, 2019 16.03
Oct 19, 1996 15.67
Jul 7, 1984 15.06
Oct 8, 2005 14.92
Oct 1, 2010 14.86
Sep 18, 2004 14.8
Jan 24, 1979 14.8
Dec 5, 1993 14.68
Apr 3, 2005 14.18
Dec 18, 2023 13.97

Data provided by the National Weather Service.