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East Branch Delaware River at Pepacton Reservoir

Highest listed crest 1,283.74 ftFlood stage 1,281.0 ft43 crests since 1960

The East Branch Delaware River at Pepacton Reservoir crested above flood stage 43 times among the 43 crests the National Weather Service lists from 1960 to 2025. The highest, 1,283.74 ft on June 28, 2006, was moderate flooding, 2.74 feet above flood stage. 4 other gauges on the East Branch Delaware River crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest
1,283.74 ft
June 28, 2006
Flood stage
1,281.0 ft
Major flooding from 1,284.0 ft
Crests at major
0
43 above flood stage
Most recent flood crest
May 10, 2025
1,281.57 ft, minor flooding
Location
Delaware County
New York
Identifiers
NWS PEPN6
No USGS station

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 Pepacton Reservoir
Action stage1,280.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)1,281.032May 10, 2025Minimal or no property damage, but possibly some public threat
Moderate flood stage1,282.011Sep 8, 2011Some inundation of structures and roads near the stream
Major flood stage1,284.00—Extensive inundation of structures and roads

Every listed crest

43 crests from 1960 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the East Branch Delaware River at Pepacton Reservoir, 1960 to 2025 1281128212831284ft Flood stage 1,281.0 ftMajor 1,284.0 ft Apr 5, 1960: 1,282.27 ft, moderate floodingApr 17, 1996: 1,281.61 ft, minor floodingMay 1, 1996: 1,281.46 ft, minor floodingMay 13, 1996: 1,281.26 ft, minor floodingNov 11, 1996: 1,281.35 ft, minor floodingDec 2, 1996: 1,282.49 ft, moderate floodingApr 8, 1997: 1,281.15 ft, minor floodingMay 12, 1998: 1,281.17 ft, minor floodingJun 17, 1998: 1,281.37 ft, minor floodingJul 10, 1998: 1,281.03 ft, minor floodingMar 31, 2003: 1,281.10 ft, minor floodingSep 5, 2003: 1,281.55 ft, minor floodingSep 29, 2003: 1,281.11 ft, minor floodingOct 30, 2003: 1,282.35 ft, moderate floodingNov 21, 2003: 1,281.58 ft, minor floodingNov 30, 2003: 1,281.05 ft, minor floodingDec 25, 2003: 1,281.77 ft, minor floodingSep 19, 2004: 1,283.44 ft, moderate floodingDec 12, 2004: 1,281.07 ft, minor floodingJan 15, 2005: 1,282.03 ft, moderate floodingApr 3, 2005: 1,283.68 ft, moderate floodingJan 19, 2006: 1,282.20 ft, moderate floodingJun 28, 2006: 1,283.74 ft, moderate floodingNov 17, 2006: 1,281.81 ft, minor floodingMar 30, 2007: 1,281.03 ft, minor floodingApr 17, 2007: 1,281.73 ft, minor floodingFeb 19, 2008: 1,281.27 ft, minor floodingMar 9, 2008: 1,282.24 ft, moderate floodingMar 21, 2008: 1,281.12 ft, minor floodingJun 22, 2009: 1,281.14 ft, minor floodingMar 24, 2010: 1,281.99 ft, minor floodingApr 29, 2011: 1,281.34 ft, minor floodingAug 29, 2011: 1,282.76 ft, moderate floodingSep 8, 2011: 1,283.12 ft, moderate floodingJun 15, 2013: 1,281.43 ft, minor floodingApr 8, 2017: 1,281.16 ft, minor flooding; 3,122 cubic feet per secondMay 3, 2017: 1,281.22 ft, minor flooding; 3,376 cubic feet per secondAug 19, 2018: 1,281.65 ft, minor flooding; 5,428 cubic feet per secondApr 15, 2019: 1,281.86 ft, minor flooding; 6,557 cubic feet per secondApr 21, 2019: 1,281.20 ft, minor flooding; 3,286 cubic feet per secondMar 11, 2024: 1,281.27 ft, minor flooding; 3,600 cubic feet per secondApr 13, 2024: 1,281.31 ft, minor flooding; 3,779 cubic feet per secondMay 10, 2025: 1,281.57 ft, minor flooding; 5,018 cubic feet per second Highest, 1,283.74 ft, Jun 28, 2006 1960197019801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, East Branch Delaware River at Pepacton Reservoir 1960s: 1 1970s: 0 1980s: 0 1990s: 9 2000s: 20 20 2010s: 10 2020s: 3 1960s1970s1980s1990s2000s2010s2020s
  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, East Branch Delaware River at Pepacton Reservoir
1Jun 28, 20061,283.74+2.74Moderate—
2Apr 3, 20051,283.68+2.68Moderate—
3Sep 19, 20041,283.44+2.44Moderate—
4Sep 8, 20111,283.12+2.12Moderate—
5Aug 29, 20111,282.76+1.76Moderate—
6Dec 2, 19961,282.49+1.49Moderate—
7Oct 30, 20031,282.35+1.35Moderate—
8Apr 5, 19601,282.27+1.27Moderate—
9Mar 9, 20081,282.24+1.24Moderate—
10Jan 19, 20061,282.20+1.20Moderate—
11Jan 15, 20051,282.03+1.03Moderate—
12Mar 24, 20101,281.99+0.99Minor—
13Apr 15, 20191,281.86+0.86Minor6,557
14Nov 17, 20061,281.81+0.81Minor—
15Dec 25, 20031,281.77+0.77Minor—
16Apr 17, 20071,281.73+0.73Minor—
17Aug 19, 20181,281.65+0.65Minor5,428
18Apr 17, 19961,281.61+0.61Minor—
19Nov 21, 20031,281.58+0.58Minor—
20May 10, 20251,281.57+0.57Minor5,018
21Sep 5, 20031,281.55+0.55Minor—
22May 1, 19961,281.46+0.46Minor—
23Jun 15, 20131,281.43+0.43Minor—
24Jun 17, 19981,281.37+0.37Minor—
25Nov 11, 19961,281.35+0.35Minor—
26Apr 29, 20111,281.34+0.34Minor—
27Apr 13, 20241,281.31+0.31Minor3,779
28Feb 19, 20081,281.27+0.27Minor—
29Mar 11, 20241,281.27+0.27Minor3,600
30May 13, 19961,281.26+0.26Minor—
31May 3, 20171,281.22+0.22Minor3,376
32Apr 21, 20191,281.20+0.20Minor3,286
33May 12, 19981,281.17+0.17Minor—
34Apr 8, 20171,281.16+0.16Minor3,122
35Apr 8, 19971,281.15+0.15Minor—
36Jun 22, 20091,281.14+0.14Minor—
37Mar 21, 20081,281.12+0.12Minor—
38Sep 29, 20031,281.11+0.11Minor—
39Mar 31, 20031,281.10+0.10Minor—
40Dec 12, 20041,281.07+0.07Minor—
41Nov 30, 20031,281.05+0.05Minor—
42Jul 10, 19981,281.03+0.03Minor—
43Mar 30, 20071,281.03+0.03Minor—

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.

June 28, 2006: 1,283.74 ft here, moderate flooding

April 3, 2005: 1,283.68 ft here, moderate flooding

September 19, 2004: 1,283.44 ft here, moderate flooding

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 DamNY9.016.00 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 Reservoir this gaugeNY1,281.01,283.74 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
Downsville below Pepacton Dam9.016.00 ft, Oct 9, 19037
Fishs Eddy13.021.45 ft, Jun 28, 20063
Harvard10.016.93 ft, Sep 22, 19388
Margaretville11.015.97 ft, Aug 28, 20113
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 PEPN6, 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.