Willamette River at Corvallis

1. 36.00 ftexpect widespread flooding, with serious flooding possible between Corvallis and Albany on the west bank of the river. At this and higher stages, the Willamette River between Harrisburg and Corvallis has historically been up to 3 miles wide.
2. 32.00 ftexpect flooding of low spots of Hwy 99 south of Corvallis, the Corvallis-Albany Hwy, and Hwy 34 near Corvallis.
3. 30.00 ftexpect extensive flooding of low-lying agricultural land east and south of Corvallis. Flooding of low areas of Hwy 34 and numerous roads in and near Corvallis begins.
4. 28.00 ftexpect flooding of some river island access roads and secondary roads east of Corvallis.
5. 26.00 ftthe river is at bankfull level and may spill out of its banks at some locations between Harrisburg and Albany.

Most recent crests

• April 10, 2019: 32.84 ft
• February 17, 2014: 27.37 ft
• January 20, 2012: 28.90 ft
• June 6, 2010: 25.20 ft
• January 19, 2006: 30.65 ft
• January 1, 1997: 31.63 ft
• November 21, 1996: 32.70 ft
• February 9, 1996: 33.50 ft
• December 7, 1981: 34.90 ft
• December 4, 1980: 33.80 ft

• UpstreamWillamette River at Harrisburg
• DownstreamWillamette River at Albany
• Marys River at Philomath
• Calapooia River at Albany
• Luckiamute River at Suver
• Santiam River at Jefferson
• N Santiam River at Greens Bridge near Jefferson
• Long Tom River at Monroe

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

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.