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East Branch Delaware River at Downsville below Pepacton Dam

Highest listed crest 16.00 ftFlood stage 9.0 ft67 crests since 1903

The East Branch Delaware River at Downsville below Pepacton Dam crested at major flood stage 7 times among the 67 crests the National Weather Service lists from 1903 to 2022. The highest, 16.00 ft on October 9, 1903, was major flooding, 7.00 feet above flood stage.

The gauge

Highest listed crest
16.00 ft
October 9, 1903; 34,000 cubic feet per second
Flood stage
9.0 ft
Major flooding from 12.0 ft
Crests at major
7
20th of 160 gauges in New York
Most recent flood crest
April 8, 2022
9.22 ft, minor flooding
Location
Delaware County
New York

Flood stages

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

Flood categories, East Branch Delaware River at Downsville below Pepacton Dam
Action stage5.320Sep 4, 2003The level at which the NWS or its partners begin to take action
Flood stage (minor)9.02Apr 8, 2022Minimal or no property damage, but possibly some public threat
Moderate flood stage10.06Sep 8, 2011Some inundation of structures and roads near the stream
Major flood stage12.07Jun 28, 2006Extensive inundation of structures and roads

Every listed crest

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

Listed crests at the East Branch Delaware River at Downsville below Pepacton Dam, 1903 to 2022 -505101520ft Flood stage 9.0 ftMajor 12.0 ft Oct 9, 1903: 16.00 ft, major flooding; 34,000 cubic feet per secondMay 23, 1942: -1.00 ft, below flood stage; 15,600 cubic feet per secondDec 30, 1942: -1.00 ft, below flood stage; 14,800 cubic feet per secondNov 9, 1943: -1.00 ft, below flood stage; 7,760 cubic feet per secondJan 1, 1945: 11.30 ft, moderate flooding; 9,380 cubic feet per secondMar 9, 1946: -1.00 ft, below flood stage; 8,220 cubic feet per secondApr 6, 1947: 10.92 ft, moderate flooding; 8,300 cubic feet per secondMar 22, 1948: 14.11 ft, major flooding; 22,000 cubic feet per secondDec 31, 1948: 13.36 ft, major flooding; 18,100 cubic feet per secondApr 5, 1950: 11.49 ft, moderate flooding; 9,620 cubic feet per secondNov 26, 1950: 14.52 ft, major flooding; 23,900 cubic feet per secondNov 8, 1951: 11.85 ft, moderate flooding; 9,520 cubic feet per secondDec 11, 1952: 13.45 ft, major flooding; 15,200 cubic feet per secondDec 7, 1953: -1.00 ft, below flood stage; 5,620 cubic feet per secondAug 15, 1955: 3.80 ft, below flood stage; 620 cubic feet per secondApr 17, 1956: 6.73 ft, action stage; 5,200 cubic feet per secondJun 21, 1957: 3.88 ft, below flood stage; 698 cubic feet per secondMay 18, 1958: 4.46 ft, below flood stage; 1,600 cubic feet per secondJun 17, 1959: 3.92 ft, below flood stage; 754 cubic feet per secondApr 5, 1960: 8.69 ft, action stage; 9,410 cubic feet per secondApr 26, 1961: 6.59 ft, action stage; 5,030 cubic feet per secondJul 2, 1962: 3.93 ft, below flood stage; 758 cubic feet per secondJul 7, 1963: 3.82 ft, below flood stage; 632 cubic feet per secondJul 29, 1964: 3.90 ft, below flood stage; 720 cubic feet per secondOct 1, 1964: 3.82 ft, below flood stage; 632 cubic feet per secondAug 19, 1966: 3.93 ft, below flood stage; 757 cubic feet per secondJun 26, 1967: 4.11 ft, below flood stage; 1,000 cubic feet per secondMar 24, 1968: 5.97 ft, action stage; 4,230 cubic feet per secondApr 24, 1969: 4.61 ft, below flood stage; 1,890 cubic feet per secondApr 18, 1970: 6.17 ft, action stage; 4,490 cubic feet per secondMay 14, 1971: 4.64 ft, below flood stage; 1,940 cubic feet per secondApr 21, 1972: 6.99 ft, action stage; 5,520 cubic feet per secondJun 30, 1973: 7.63 ft, action stage; 6,520 cubic feet per secondApr 15, 1974: 5.71 ft, action stage; 3,870 cubic feet per secondFeb 25, 1975: 6.65 ft, action stage; 5,100 cubic feet per secondJan 28, 1976: 7.19 ft, action stage; 5,820 cubic feet per secondMar 31, 1977: 7.76 ft, action stage; 6,790 cubic feet per secondJan 9, 1978: 8.28 ft, action stage; 8,170 cubic feet per secondMay 26, 1979: 5.71 ft, action stage; 3,870 cubic feet per secondApr 12, 1980: 4.73 ft, below flood stage; 2,120 cubic feet per secondOct 16, 1980: 3.87 ft, below flood stage; 697 cubic feet per secondApr 24, 1982: 4.15 ft, below flood stage; 1,090 cubic feet per secondApr 27, 1983: 6.19 ft, action stage; 4,350 cubic feet per secondMay 30, 1984: 8.91 ft, action stage; 9,820 cubic feet per secondNov 1, 1984: 3.84 ft, below flood stage; 667 cubic feet per secondMay 24, 1986: 5.13 ft, below flood stage; 2,890 cubic feet per secondApr 13, 1987: 5.19 ft, below flood stage; 2,980 cubic feet per secondJun 1, 1988: 3.64 ft, below flood stage; 457 cubic feet per secondOct 14, 1988: 3.83 ft, below flood stage; 655 cubic feet per secondMay 14, 1990: 5.24 ft, below flood stage; 3,010 cubic feet per secondSep 6, 1991: 3.91 ft, below flood stage; 730 cubic feet per secondOct 3, 1991: 3.88 ft, below flood stage; 692 cubic feet per secondApr 17, 1993: 6.82 ft, action stage; 5,370 cubic feet per secondApr 16, 1994: 6.87 ft, action stage; 5,460 cubic feet per secondSep 12, 1995: 3.86 ft, below flood stage; 643 cubic feet per secondApr 17, 1996: 6.38 ft, action stage; 4,640 cubic feet per secondDec 2, 1996: 9.41 ft, minor flooding; 11,000 cubic feet per secondJun 15, 1998: 6.08 ft, action stage; 4,190 cubic feet per secondJun 7, 2000: 5.00 ft, below flood stage; 2,700 cubic feet per secondApr 17, 2001: 4.84 ft, below flood stage; 2,360 cubic feet per secondNov 9, 2001: 3.83 ft, below flood stage; 655 cubic feet per secondSep 4, 2003: 7.06 ft, action stage; 5,860 cubic feet per secondSep 18, 2004: 12.09 ft, major flooding; 18,000 cubic feet per secondJun 28, 2006: 12.04 ft, major flooding; 17,800 cubic feet per secondAug 29, 2011: 10.00 ft, moderate flooding; 12,400 cubic feet per secondSep 8, 2011: 10.98 ft, moderate flooding; 15,619 cubic feet per secondApr 8, 2022: 9.22 ft, minor flooding; 9,609 cubic feet per second Highest, 16.00 ft, Oct 9, 1903 192019401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, East Branch Delaware River at Downsville below Pepacton Dam 1900s: 1 1910s: 0 1920s: 0 1930s: 0 1940s: 4 4 1950s: 4 1960s: 0 1970s: 0 1980s: 0 1990s: 1 2000s: 2 2010s: 2 2020s: 1 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

The 50 highest of 67 listed crests.

Highest listed crests, East Branch Delaware River at Downsville below Pepacton Dam
1Oct 9, 190316.00+7.00Major34,000
2Nov 26, 195014.52+5.52Major23,900
3Mar 22, 194814.11+5.11Major22,000
4Dec 11, 195213.45+4.45Major15,200
5Dec 31, 194813.36+4.36Major18,100
6Sep 18, 200412.09+3.09Major18,000
7Jun 28, 200612.04+3.04Major17,800
8Nov 8, 195111.85+2.85Moderate9,520
9Apr 5, 195011.49+2.49Moderate9,620
10Jan 1, 194511.30+2.30Moderate9,380
11Sep 8, 201110.98+1.98Moderate15,619
12Apr 6, 194710.92+1.92Moderate8,300
13Aug 29, 201110.00+1.00Moderate12,400
14Dec 2, 19969.41+0.41Minor11,000
15Apr 8, 20229.22+0.22Minor9,609
16May 30, 19848.91−0.09Action9,820
17Apr 5, 19608.69−0.31Action9,410
18Jan 9, 19788.28−0.72Action8,170
19Mar 31, 19777.76−1.24Action6,790
20Jun 30, 19737.63−1.37Action6,520
21Jan 28, 19767.19−1.81Action5,820
22Sep 4, 20037.06−1.94Action5,860
23Apr 21, 19726.99−2.01Action5,520
24Apr 16, 19946.87−2.13Action5,460
25Apr 17, 19936.82−2.18Action5,370
26Apr 17, 19566.73−2.27Action5,200
27Feb 25, 19756.65−2.35Action5,100
28Apr 26, 19616.59−2.41Action5,030
29Apr 17, 19966.38−2.62Action4,640
30Apr 27, 19836.19−2.81Action4,350
31Apr 18, 19706.17−2.83Action4,490
32Jun 15, 19986.08−2.92Action4,190
33Mar 24, 19685.97−3.03Action4,230
34Apr 15, 19745.71−3.29Action3,870
35May 26, 19795.71−3.29Action3,870
36May 14, 19905.24−3.76Below flood stage3,010
37Apr 13, 19875.19−3.81Below flood stage2,980
38May 24, 19865.13−3.87Below flood stage2,890
39Jun 7, 20005.00−4.00Below flood stage2,700
40Apr 17, 20014.84−4.16Below flood stage2,360
41Apr 12, 19804.73−4.27Below flood stage2,120
42May 14, 19714.64−4.36Below flood stage1,940
43Apr 24, 19694.61−4.39Below flood stage1,890
44May 18, 19584.46−4.54Below flood stage1,600
45Apr 24, 19824.15−4.85Below flood stage1,090
46Jun 26, 19674.11−4.89Below flood stage1,000
47Jul 2, 19623.93−5.07Below flood stage758
48Aug 19, 19663.93−5.07Below flood stage757
49Jun 17, 19593.92−5.08Below flood stage754
50Sep 6, 19913.91−5.09Below flood stage730

The worst floods along the East Branch Delaware River

For this gauge's highest crests, the other gauges on the East Branch Delaware River that crested above flood stage within a week.

November 26, 1950: 14.52 ft here, major flooding

  • HarvardNY · Nov 26, 1950 · 15.69 ft · Major
  • MargaretvilleNY · Nov 25, 1950 · 13.84 ft · Major
  • Fishs EddyNY · Nov 26, 1950 · 17.15 ft · Moderate

March 22, 1948: 14.11 ft here, major flooding

December 11, 1952: 13.45 ft here, major flooding

  • HarvardNY · Dec 12, 1952 · 13.96 ft · Moderate
  • MargaretvilleNY · Dec 11, 1952 · 11.27 ft · Minor

Gauges on the East Branch Delaware River

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

Flood gauges on the East Branch Delaware River
Downsville below Pepacton Dam this gaugeNY9.016.00 ft, Oct 9, 19037
Fishs EddyNY13.021.45 ft, Jun 28, 20063
HarvardNY10.016.93 ft, Sep 22, 19388
MargaretvilleNY11.015.97 ft, Aug 28, 20113
Pepacton ReservoirNY1,281.01,283.74 ft, Jun 28, 20060

Other gauges in Delaware County

Flood gauges in Delaware County
Cooks Falls10.020.55 ft, Jun 28, 20062
Arkville10.515.50 ft, Jan 19, 19965
Fishs Eddy13.021.45 ft, Jun 28, 20063
Harvard10.016.93 ft, Sep 22, 19388
Margaretville11.015.97 ft, Aug 28, 20113
Pepacton Reservoir1,281.01,283.74 ft, Jun 28, 20060
Hancock18.028.23 ft, Jun 28, 20063
East Sidney Dam1,203.01,204.35 ft, Jul 1, 20060
East Sidney Dam4.56.19 ft, Apr 7, 19601
Dunraven7.011.20 ft, Jan 19, 19961
Sidney979.5988.30 ft, Jun 28, 20062
Andes6.86.96 ft, Aug 9, 20240
Trout Creek6.37.48 ft, Aug 9, 20243
Delhi8.012.53 ft, Aug 29, 20115
Cannonsville Reservoir1,153.01,158.00 ft, Jun 29, 20063
Hale Eddy11.020.30 ft, Oct 10, 19039
Walton11.516.85 ft, Jun 28, 20062

Delaware County: every hazard · River floods across the country · New York

NOAA National Water Prediction Service, gauge DWNN6, 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.