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Delaware River at Belvidere

Highest listed crest 30.21 ftFlood stage 22.0 ft22 crests since 1903

The Delaware River at Belvidere crested at major flood stage 5 times among the 22 crests the National Weather Service lists from 1903 to 2022. The highest, 30.21 ft on August 19, 1955, was major flooding, 8.21 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
30.21 ft
August 19, 1955; 273,000 cubic feet per second
Flood stage
22.0 ft
Major flooding from 25.0 ft
Crests at major
5
23rd of 125 gauges in New Jersey
Most recent flood crest
June 29, 2006
27.16 ft, major flooding
Location
Warren County
Near Phillipsburg (10.6 mi), Easton (12.0 mi), Hackettstown (13.6 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 Belvidere
Action stage18.55Apr 9, 2022The level at which the NWS or its partners begin to take action
Flood stage (minor)22.02Jan 20, 1996Minimal or no property damage, but possibly some public threat
Moderate flood stage24.01Sep 19, 2004Some inundation of structures and roads near the stream
Major flood stage25.05Jun 29, 2006Extensive inundation of structures and roads

Every listed crest

22 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 Belvidere, 1903 to 2022 101520253035ft Flood stage 22.0 ftMajor 25.0 ft Oct 10, 1903: 28.60 ft, major flooding; 220,000 cubic feet per secondFeb 12, 1936: 22.22 ft, minor flooding; 148,000 cubic feet per secondMar 19, 1936: 25.00 ft, major flooding; 179,000 cubic feet per secondAug 19, 1955: 30.21 ft, major flooding; 273,000 cubic feet per secondJun 24, 1972: 15.34 ft, below flood stageMar 16, 1986: 20.34 ft, action stage; 126,000 cubic feet per secondJan 20, 1996: 22.96 ft, minor flooding; 158,000 cubic feet per secondNov 10, 1996: 15.05 ft, below flood stage; 71,400 cubic feet per secondDec 3, 1996: 16.49 ft, below flood stage; 85,000 cubic feet per secondJan 9, 1998: 13.18 ft, below flood stage; 54,900 cubic feet per secondOct 30, 2003: 14.97 ft, below flood stage; 70,700 cubic feet per secondSep 19, 2004: 24.80 ft, moderate flooding; 184,000 cubic feet per secondApr 4, 2005: 27.24 ft, major flooding; 223,000 cubic feet per secondJun 29, 2006: 27.16 ft, major flooding; 225,000 cubic feet per secondMar 12, 2011: 19.65 ft, action stage; 124,500 cubic feet per secondAug 20, 2011: 19.55 ft, action stageSep 9, 2011: 21.55 ft, action stage; 147,000 cubic feet per secondFeb 26, 2016: 13.46 ft, below flood stageApr 7, 2017: 13.51 ft, below flood stageDec 26, 2020: 17.88 ft, below flood stageSep 2, 2021: 17.70 ft, below flood stageApr 9, 2022: 18.55 ft, action stage Highest, 30.21 ft, Aug 19, 1955 192019401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Delaware River at Belvidere 1900s: 1 1910s: 0 1920s: 0 1930s: 2 1940s: 0 1950s: 1 1960s: 0 1970s: 0 1980s: 0 1990s: 1 2000s: 3 3 2010s: 0 2020s: 0 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 Belvidere
1Aug 19, 195530.21+8.21Major273,000
2Oct 10, 190328.60+6.60Major220,000
3Apr 4, 200527.24+5.24Major223,000
4Jun 29, 200627.16+5.16Major225,000
5Mar 19, 193625.00+3.00Major179,000
6Sep 19, 200424.80+2.80Moderate184,000
7Jan 20, 199622.96+0.96Minor158,000
8Feb 12, 193622.22+0.22Minor148,000
9Sep 9, 201121.55−0.45Action147,000
10Mar 16, 198620.34−1.66Action126,000
11Mar 12, 201119.65−2.35Action124,500
12Aug 20, 201119.55−2.45Action—
13Apr 9, 202218.55−3.45Action—
14Dec 26, 202017.88−4.12Below flood stage—
15Sep 2, 202117.70−4.30Below flood stage—
16Dec 3, 199616.49−5.51Below flood stage85,000
17Jun 24, 197215.34−6.66Below flood stage—
18Nov 10, 199615.05−6.95Below flood stage71,400
19Oct 30, 200314.97−7.03Below flood stage70,700
20Apr 7, 201713.51−8.49Below flood stage—
21Feb 26, 201613.46−8.54Below flood stage—
22Jan 9, 199813.18−8.82Below flood stage54,900

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: 30.21 ft here, major flooding

  • EastonPA · Aug 19, 1955 · 44.40 ft · Major · its highest
  • 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
  • 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: 28.60 ft here, major flooding

April 4, 2005: 27.24 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
Belvidere this gaugeNJ22.030.21 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
EastonPA22.044.40 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 Warren County

Flood gauges in Warren County
Belvidere4.56.33 ft, Aug 28, 20110
Riegelsville22.038.85 ft, Aug 20, 19556
Tocks Island21.037.40 ft, Aug 19, 19555
Bloomsbury6.09.20 ft, Sep 2, 20210
Blairstown5.011.12 ft, Aug 19, 19550
Pequest6.06.42 ft, Sep 8, 20110

Warren County: every hazard · River floods across the country · New Jersey

NOAA National Water Prediction Service, gauge BVDN4, 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.