Willamette River at Corvallis, OR

The last 7 days and the forecast

NWS forecast issued Mon, Oct 12, 8:25 AM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

What floods at each level

From the National Weather Service, highest first.

• 36 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.
• 32 ftexpect flooding of low spots of Hwy 99 south of Corvallis, the Corvallis-Albany Hwy, and Hwy 34 near Corvallis.
• 30 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.
• 28 ftexpect flooding of some river island access roads and secondary roads east of Corvallis.
• 26 ftthe river is at bankfull level and may spill out of its banks at some locations between Harrisburg and Albany.

Highest crests on record

1. 42.4 ft — December 1, 1861
2. 38.2 ft — December 29, 1945
3. 38.1 ft — January 2, 1943
4. 36.8 ft — January 8, 1948
5. 36.2 ft — January 19, 1953

Recent crests: 32.84 ft (April 10, 2019) · 27.37 ft (February 17, 2014) · 28.9 ft (January 20, 2012) · 25.2 ft (June 6, 2010) · 30.65 ft (January 19, 2006)

Up and down the river, and nearby

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