Delaware River at USCG Station Washington Street (IN MLLW)
Highest listed crest 10.66 ftFlood stage 8.2 ft34 crests since 1933
The Delaware River at USCG Station Washington Street (IN MLLW) crested at major flood stage 6 times among the 34 crests the National Weather Service lists from 1933 to 2024. The highest, 10.66 ft on January 10, 2024, was major flooding, 2.46 feet above flood stage. 5 other gauges on the Delaware River crested above flood stage within a week of it, 2 at their own highest listed crest.
The gauge
- Highest listed crest
- 10.66 ft
- January 10, 2024
- Flood stage
- 8.2 ft
- Major flooding from 10.2 ft
- Crests at major
- 6
- 37th of 170 gauges in Pennsylvania
- Most recent flood crest
- April 12, 2024
- 9.49 ft, moderate flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Flood stage (minor) | 8.2 | 0 | — |
| Moderate flood stage | 9.2 | 28 | Apr 12, 2024 |
| Major flood stage | 10.2 | 6 | Jan 10, 2024 |
Every listed crest
34 crests from 1933 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
- These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
- Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
Highest crests
| 1 | Jan 10, 2024 | 10.66 | +2.46 | Major |
| 2 | Oct 30, 2012 | 10.62 | +2.42 | Major |
| 3 | Nov 25, 1950 | 10.49 | +2.29 | Major |
| 4 | Apr 17, 2011 | 10.46 | +2.26 | Major |
| 5 | Oct 29, 2021 | 10.36 | +2.16 | Major |
| 6 | Dec 21, 2012 | 10.35 | +2.15 | Major |
| 7 | Oct 25, 1980 | 10.17 | +1.97 | Moderate |
| 8 | Aug 23, 1933 | 10.09 | +1.89 | Moderate |
| 9 | May 1, 2014 | 9.93 | +1.73 | Moderate |
| 10 | Aug 28, 2011 | 9.92 | +1.72 | Moderate |
| 11 | Aug 20, 1955 | 9.89 | +1.69 | Moderate |
| 12 | Feb 26, 1979 | 9.87 | +1.67 | Moderate |
| 13 | Apr 2, 2005 | 9.76 | +1.56 | Moderate |
| 14 | Dec 11, 1992 | 9.71 | +1.51 | Moderate |
| 15 | Sep 1, 2021 | 9.69 | +1.49 | Moderate |
| 16 | Sep 10, 2018 | 9.64 | +1.44 | Moderate |
| 17 | Nov 26, 2018 | 9.62 | +1.42 | Moderate |
| 18 | Dec 18, 2023 | 9.59 | +1.39 | Moderate |
| 19 | Jun 30, 1973 | 9.58 | +1.38 | Moderate |
| 20 | Sep 29, 2011 | 9.57 | +1.37 | Moderate |
| 21 | Dec 23, 2022 | 9.49 | +1.29 | Moderate |
| 22 | Apr 12, 2024 | 9.49 | +1.29 | Moderate |
| 23 | Sep 19, 2003 | 9.47 | +1.27 | Moderate |
| 24 | Apr 16, 2018 | 9.47 | +1.27 | Moderate |
| 25 | Apr 19, 2007 | 9.46 | +1.26 | Moderate |
| 26 | Nov 28, 1993 | 9.45 | +1.25 | Moderate |
| 27 | Mar 10, 2024 | 9.45 | +1.25 | Moderate |
| 28 | Oct 15, 1954 | 9.39 | +1.19 | Moderate |
| 29 | Mar 7, 1962 | 9.39 | +1.19 | Moderate |
| 30 | Apr 4, 2024 | 9.38 | +1.18 | Moderate |
| 31 | Jun 29, 2006 | 9.34 | +1.14 | Moderate |
| 32 | Oct 17, 1955 | 9.29 | +1.09 | Moderate |
| 33 | Jan 25, 1979 | 9.22 | +1.02 | Moderate |
| 34 | Jan 19, 1996 | 9.22 | +1.02 | Moderate |
The worst floods along the Delaware River
For this gauge's highest crests, the other gauges on the Delaware River that crested above flood stage within a week.
January 10, 2024: 10.66 ft here, major flooding
- Newbold Island (IN MLLW)PA · Jan 10, 2024 · 12.64 ft · Major
- Burlington (IN MLLW)PA · Jan 10, 2024 · 11.99 ft · Major · its highest
- Bridesburg (IN MLLW)PA · Jan 10, 2024 · 10.99 ft · Major · its highest
- Marcus Hook (IN MLLW)PA · Jan 10, 2024 · 9.66 ft · Moderate
- Delaware City (IN MLLW)DE · Jan 10, 2024 · 9.06 ft · Moderate
October 30, 2012: 10.62 ft here, major flooding
- Newbold Island (IN MLLW)PA · Oct 30, 2012 · 12.24 ft · Major
- Burlington (IN MLLW)PA · Oct 30, 2012 · 11.69 ft · Major
- Marcus Hook (IN MLLW)PA · Oct 30, 2012 · 10.14 ft · Major · its highest
- Delaware City (IN MLLW)DE · Oct 30, 2012 · 9.73 ft · Major · its highest
April 17, 2011: 10.46 ft here, major flooding
- Newbold Island (IN MLLW)PA · Apr 17, 2011 · 12.50 ft · Major
- Burlington (IN MLLW)PA · Apr 17, 2011 · 11.94 ft · Major
- Marcus Hook (IN MLLW)PA · Apr 16, 2011 · 9.76 ft · Major
- Delaware City (IN MLLW)DE · Apr 16, 2011 · 9.38 ft · Moderate
Gauges on the Delaware River
Flood gauges sharing the river's name, linked within 80 miles of one another.
| Barryville | NY | 28.97 ft, Jun 28, 2006 | 2 |
| Belvidere | NJ | 30.21 ft, Aug 19, 1955 | 5 |
| Bridesburg (IN MLLW) | PA | 10.99 ft, Jan 10, 2024 | 2 |
| Burlington (IN MLLW) | PA | 11.99 ft, Jan 10, 2024 | 7 |
| Callicoon | PA | 20.38 ft, Jun 28, 2006 | 5 |
| Delaware City (IN MLLW) | DE | 9.73 ft, Oct 30, 2012 | 2 |
| Easton | PA | 44.40 ft, Aug 19, 1955 | 7 |
| Frenchtown | NJ | 27.79 ft, Aug 20, 1955 | 7 |
| Lordville | PA | 28.87 ft, Jun 28, 2006 | 1 |
| Marcus Hook (IN MLLW) | PA | 10.14 ft, Oct 30, 2012 | 4 |
| Matamoras/Port Jervis | PA | 26.60 ft, Feb 12, 1981 | 4 |
| Montague | PA | 35.15 ft, Aug 19, 1955 | 4 |
| New Hope-Lambertville Bridge | PA | 24.16 ft, Aug 20, 1955 | 8 |
| Newbold Island (IN MLLW) | PA | 13.22 ft, Sep 1, 2021 | 7 |
| Riegelsville | NJ | 38.85 ft, Aug 20, 1955 | 6 |
| Stockton | PA | 30.44 ft, Aug 20, 1955 | 5 |
| Tocks Island | NJ | 37.40 ft, Aug 19, 1955 | 5 |
| Trenton | NJ | 30.60 ft, Mar 8, 1904 | 5 |
| USCG Station Washington Street (IN MLLW) this gauge | PA | 10.66 ft, Jan 10, 2024 | 6 |
| Washington Crossing | PA | 27.77 ft, Aug 20, 1955 | 4 |
Other gauges in Philadelphia County
| 84th Street Bridge at Eastwick | 14.64 ft, Aug 4, 2020 | 1 |
| Bridesburg (IN MLLW) | 10.99 ft, Jan 10, 2024 | 2 |
| Philadelphia | 13.94 ft, Sep 28, 2004 | 13 |
| Philadelphia | 15.24 ft, Aug 28, 2011 | 7 |
| Philadelphia | 16.35 ft, Sep 2, 2021 | 1 |
| Philadelphia near 30th Street | 16.28 ft, Sep 2, 2021 | 1 |
Philadelphia County: every hazard · River floods across the country · Pennsylvania
NOAA National Water Prediction Service, gauge PHBP1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.