Rivers in Oregon

Sandy River near Bull Run

Multnomah County, OregonNWS SNDO3USGS 14142500Portland office

Below flood stage
7.57ftStage

Observed Thu, Sep 24, 4:45 AM PDT

Flood stage
19.30 ft
Forecast crest
7.80 ftFri, Sep 25, 11:00 PM PDT
Record crest
22.59 ft1996

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood21.50 ft
Moderate flood20.50 ft
Minor flood19.30 ft
Action18.00 ft
  1. 21.50 ftexpect significant bank erosion, large amounts of debris in the river, and flooding of low areas along the river, especially in the lower reach of the Sandy near Troutdale.
  2. 19.30 ftexpect areas of significant bank erosion and some minor flooding of low areas along the Sandy from Ten Eyck Road Bridge, also called Revenue Bridge downstream to Troutdale.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor floodingUnder 5%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 23, 2026.

Crest history

14 crests on NOAA’s list since 1931.

#DateStage
1February 7, 199622.59 ft
2December 22, 196422.30 ft
3January 16, 201121.84 ft
4January 2, 200921.62 ft
5November 25, 199921.44 ft
6December 19, 202521.37 ft
7February 23, 198620.98 ft
8March 31, 193120.60 ft
9December 28, 199919.38 ft
10November 7, 200619.30 ft
11October 31, 199418.33 ft
12December 2, 201317.80 ft
13April 27, 199017.45 ft
14December 7, 201516.84 ft

Most recent crests

  • December 19, 2025: 21.37 ft
  • December 7, 2015: 16.84 ft
  • December 2, 2013: 17.80 ft
  • January 16, 2011: 21.84 ft
  • January 2, 2009: 21.62 ft
  • November 7, 2006: 19.30 ft
  • December 28, 1999: 19.38 ft
  • November 25, 1999: 21.44 ft
  • February 7, 1996: 22.59 ft
  • October 31, 1994: 18.33 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Northwest River Forecast Center. Forecasts are issued routinely year-round.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.