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Delaware River at Easton

Highest listed crest 44.40 ftFlood stage 22.0 ft23 crests since 1903

The Delaware River at Easton crested at major flood stage 7 times among the 23 crests the National Weather Service lists from 1903 to 2022. The highest, 44.40 ft on August 19, 1955, was major flooding, 22.40 feet above flood stage. 12 other gauges on the Delaware River crested above flood stage within a week of it, 8 at their own highest listed crest.

The gauge

Highest listed crest
44.40 ft
August 19, 1955
Flood stage
22.0 ft
Major flooding from 30.0 ft
Crests at major
7
27th of 170 gauges in Pennsylvania
Most recent flood crest
April 9, 2022
22.64 ft, minor flooding
Location
Northampton County
Near Easton (1.0 mi), Phillipsburg (1.3 mi), Bethlehem (9.8 mi)

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Delaware River at Easton
Action stage20.03Oct 2, 2010The level at which the NWS or its partners begin to take action
Flood stage (minor)22.09Apr 9, 2022Minimal or no property damage, but possibly some public threat
Moderate flood stage26.02Sep 9, 2011Some inundation of structures and roads near the stream
Major flood stage30.07Jun 29, 2006Extensive inundation of structures and roads

Every listed crest

23 crests from 1903 to 2022. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Delaware River at Easton, 1903 to 2022 1020304050ft Flood stage 22.0 ftMajor 30.0 ft Oct 10, 1903: 38.10 ft, major floodingMar 19, 1936: 32.80 ft, major floodingAug 19, 1955: 44.40 ft, major floodingOct 17, 1955: 23.60 ft, minor floodingJun 30, 1973: 24.21 ft, minor floodingMay 30, 1984: 24.31 ft, minor floodingJan 20, 1996: 30.65 ft, major floodingJan 28, 1996: 22.38 ft, minor floodingNov 10, 1996: 18.05 ft, below flood stageDec 3, 1996: 20.66 ft, action stageOct 30, 2003: 18.05 ft, below flood stageSep 19, 2004: 33.45 ft, major floodingApr 4, 2005: 37.20 ft, major floodingJan 19, 2006: 20.39 ft, action stageJun 29, 2006: 37.09 ft, major floodingOct 2, 2010: 20.72 ft, action stageMar 8, 2011: 22.88 ft, minor floodingMar 12, 2011: 26.11 ft, moderate floodingAug 29, 2011: 25.15 ft, minor floodingSep 9, 2011: 29.23 ft, moderate floodingDec 26, 2020: 22.14 ft, minor floodingSep 2, 2021: 25.73 ft, minor floodingApr 9, 2022: 22.64 ft, minor flooding Highest, 44.40 ft, Aug 19, 1955 192019401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Delaware River at Easton 1900s: 1 1910s: 0 1920s: 0 1930s: 1 1940s: 0 1950s: 2 1960s: 0 1970s: 1 1980s: 1 1990s: 2 2000s: 3 2010s: 4 4 2020s: 3 1900s1910s1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  1. 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.
  2. 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

Highest listed crests, Delaware River at Easton
1Aug 19, 195544.40+22.40Major—
2Oct 10, 190338.10+16.10Major—
3Apr 4, 200537.20+15.20Major—
4Jun 29, 200637.09+15.09Major—
5Sep 19, 200433.45+11.45Major—
6Mar 19, 193632.80+10.80Major—
7Jan 20, 199630.65+8.65Major—
8Sep 9, 201129.23+7.23Moderate—
9Mar 12, 201126.11+4.11Moderate—
10Sep 2, 202125.73+3.73Minor—
11Aug 29, 201125.15+3.15Minor—
12May 30, 198424.31+2.31Minor—
13Jun 30, 197324.21+2.21Minor—
14Oct 17, 195523.60+1.60Minor—
15Mar 8, 201122.88+0.88Minor—
16Apr 9, 202222.64+0.64Minor—
17Jan 28, 199622.38+0.38Minor—
18Dec 26, 202022.14+0.14Minor—
19Oct 2, 201020.72−1.28Action—
20Dec 3, 199620.66−1.34Action—
21Jan 19, 200620.39−1.61Action—
22Nov 10, 199618.05−3.95Below flood stage—
23Oct 30, 200318.05−3.95Below flood stage—

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.

August 19, 1955: 44.40 ft here, major flooding

  • RiegelsvilleNJ · Aug 20, 1955 · 38.85 ft · Major · its highest
  • Tocks IslandNJ · Aug 19, 1955 · 37.40 ft · Major · its highest
  • MontaguePA · Aug 19, 1955 · 35.15 ft · Major · its highest
  • StocktonPA · Aug 20, 1955 · 30.44 ft · Major · its highest
  • BelvidereNJ · Aug 19, 1955 · 30.21 ft · Major · its highest
  • TrentonNJ · Aug 20, 1955 · 28.60 ft · Major
  • FrenchtownNJ · Aug 20, 1955 · 27.79 ft · Major · its highest
  • Washington CrossingPA · Aug 20, 1955 · 27.77 ft · Major · its highest
  • BarryvilleNY · Aug 19, 1955 · 26.40 ft · Major
  • New Hope-Lambertville BridgePA · Aug 20, 1955 · 24.16 ft · Major · its highest

October 10, 1903: 38.10 ft here, major flooding

April 4, 2005: 37.20 ft here, major flooding

Gauges on the Delaware River

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the Delaware River
BarryvilleNY17.028.97 ft, Jun 28, 20062
BelvidereNJ22.030.21 ft, Aug 19, 19555
Bridesburg (IN MLLW)PA8.510.99 ft, Jan 10, 20242
Burlington (IN MLLW)PA9.311.99 ft, Jan 10, 20247
CallicoonPA12.020.38 ft, Jun 28, 20065
Delaware City (IN MLLW)DE7.59.73 ft, Oct 30, 20122
Easton this gaugePA22.044.40 ft, Aug 19, 19557
FrenchtownNJ16.027.79 ft, Aug 20, 19557
LordvillePA20.028.87 ft, Jun 28, 20061
Marcus Hook (IN MLLW)PA7.710.14 ft, Oct 30, 20124
Matamoras/Port JervisPA18.026.60 ft, Feb 12, 19814
MontaguePA25.035.15 ft, Aug 19, 19554
New Hope-Lambertville BridgePA13.024.16 ft, Aug 20, 19558
Newbold Island (IN MLLW)PA10.213.22 ft, Sep 1, 20217
RiegelsvilleNJ22.038.85 ft, Aug 20, 19556
StocktonPA18.030.44 ft, Aug 20, 19555
Tocks IslandNJ21.037.40 ft, Aug 19, 19555
TrentonNJ20.030.60 ft, Mar 8, 19045
USCG Station Washington Street (IN MLLW)PA8.210.66 ft, Jan 10, 20246
Washington CrossingPA16.027.77 ft, Aug 20, 19554

Other gauges in Northampton County

Flood gauges in Northampton County
Glendon19.027.90 ft, Apr 3, 200510
Walnutport8.020.60 ft, May 23, 19422

Northampton County: every hazard · River floods across the country · Pennsylvania

NOAA National Water Prediction Service, gauge ESTN4, 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.