Marys River near Philomath, OR

Benton County, Oregon · USGS gauge 14171000 · NWS PHIO3 · Oregon river levels

Is Marys River near Philomath, OR flooding right now?

Marys River near Philomath, OR measured 2.04 ft on 2026-09-11 01:00:00 UTC. That observation was 18.0 ft below its 20 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
2.04 ft
as of 2 hours ago
Streamflow
15 cfs
data refreshed 13 min ago

Minor flooding here begins at 20 ft, with major flooding at 21.5 ft. The highest crest on record was 21.53 ft on Thu, Jan 19, 2012.

Flood forecast

NWS forecast, issued 4 hours ago. Forecasts are issued for select river points and update through the day.

Flood stages at this gauge

CategoryStageCurrent distance
Action16 ft14.0 ft below
Minor flood20 ft18.0 ft below
Moderate flood21 ft19.0 ft below
Major flood21.5 ft19.5 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
21.53 ft2012-01-19
21.21 ft2016-11-25
21.1 ft2015-12-18
21.07 ft2005-12-30
21.03 ft2007-12-03

Nearby gauges

GaugeDistanceCounty
Willamette River at Corvallis, OR4.8 miBenton County
Calapooia River at Albany, OR12.1 miLinn County
Willamette River at Albany, OR13.7 miLinn County
Long Tom River at Monroe, OR14.8 miBenton County
North Fork Alsea River at Alsea, OR16.3 miBenton County
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast