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Sandy River near Bull Run

Highest listed crest 22.59 ftFlood stage 19.3 ft14 crests since 1931

The Sandy River near Bull Run crested at major flood stage 4 times among the 14 crests the National Weather Service lists from 1931 to 2025. The highest, 22.59 ft on February 7, 1996, was major flooding, 3.29 feet above flood stage.

The gauge

Highest listed crest
22.59 ft
February 7, 1996; 68,600 cubic feet per second
Flood stage
19.3 ft
Major flooding from 21.5 ft
Crests at major
4
25th of 100 gauges in Oregon
Most recent flood crest
December 19, 2025
21.37 ft, moderate flooding
Location
Clackamas County
Near Sandy (3.7 mi), Troutdale (9.5 mi), Gresham (10.2 mi)

Flood stages

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

Flood categories, Sandy River near Bull Run
Action stage18.01Oct 31, 1994The level at which the NWS or its partners begin to take action
Flood stage (minor)19.32Nov 7, 2006Minimal or no property damage, but possibly some public threat
Moderate flood stage20.54Dec 19, 2025Some inundation of structures and roads near the stream
Major flood stage21.54Jan 16, 2011Extensive inundation of structures and roads

Every listed crest

14 crests from 1931 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Sandy River near Bull Run, 1931 to 2025 1618202224ft Flood stage 19.3 ftMajor 21.5 ft Mar 31, 1931: 20.60 ft, moderate flooding; 58,000 cubic feet per secondDec 22, 1964: 22.30 ft, major flooding; 84,400 cubic feet per secondFeb 23, 1986: 20.98 ft, moderate flooding; 61,600 cubic feet per secondApr 27, 1990: 17.45 ft, below flood stage; 27,700 cubic feet per secondOct 31, 1994: 18.33 ft, action stage; 33,100 cubic feet per secondFeb 7, 1996: 22.59 ft, major flooding; 68,600 cubic feet per secondNov 25, 1999: 21.44 ft, moderate flooding; 57,600 cubic feet per secondDec 28, 1999: 19.38 ft, minor flooding; 40,500 cubic feet per secondNov 7, 2006: 19.30 ft, minor flooding; 39,900 cubic feet per secondJan 2, 2009: 21.62 ft, major flooding; 45,770 cubic feet per secondJan 16, 2011: 21.84 ft, major flooding; 61,300 cubic feet per secondDec 2, 2013: 17.80 ft, below flood stage; 31,700 cubic feet per secondDec 7, 2015: 16.84 ft, below flood stage; 26,100 cubic feet per secondDec 19, 2025: 21.37 ft, moderate flooding; 56,327 cubic feet per second Highest, 22.59 ft, Feb 7, 1996 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Sandy River near Bull Run 1930s: 1 1940s: 0 1950s: 0 1960s: 1 1970s: 0 1980s: 1 1990s: 3 3 2000s: 2 2010s: 1 2020s: 1 1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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, Sandy River near Bull Run
1Feb 7, 199622.59+3.29Major68,600
2Dec 22, 196422.30+3.00Major84,400
3Jan 16, 201121.84+2.54Major61,300
4Jan 2, 200921.62+2.32Major45,770
5Nov 25, 199921.44+2.14Moderate57,600
6Dec 19, 202521.37+2.07Moderate56,327
7Feb 23, 198620.98+1.68Moderate61,600
8Mar 31, 193120.60+1.30Moderate58,000
9Dec 28, 199919.38+0.08Minor40,500
10Nov 7, 200619.300.00Minor39,900
11Oct 31, 199418.33−0.97Action33,100
12Dec 2, 201317.80−1.50Below flood stage31,700
13Apr 27, 199017.45−1.85Below flood stage27,700
14Dec 7, 201516.84−2.46Below flood stage26,100

Other gauges in Clackamas County

Flood gauges in Clackamas County
Estacada20.030.36 ft, Dec 22, 19645
Oregon City39.046.56 ft, Dec 19, 20251
Milwaukie30.331.30 ft, Dec 8, 20150
Canby20.026.76 ft, Dec 22, 19643
West Linn13.518.32 ft, Feb 10, 19965
Falls at Oregon City64.071.30 ft, Feb 5, 199010
Falls at Oregon City27.050.50 ft, Feb 5, 18906

Clackamas County: every hazard · River floods across the country · Oregon

NOAA National Water Prediction Service, gauge SNDO3, 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.