High water sign at Chapel Drive and South 16th Street
A vehicle heads west on Chapel Drive near South 16th Street on Monday morning in Philomath. (Photo by Brad Fuqua/Philomath News)
Editor’s note: This story was updated at 10 a.m. with new information from the National Weather Service.

The Marys River near Philomath reached flood stage early Monday and has continued to rise, according to reported observations from the National Weather Service.

The river level surpassed 20 feet based on data reported at 1 a.m., and as of 5 a.m., was at 20.77 feet. The river has been steadily rising hour-by-hour since Saturday evening.

The NWS issued a flood warning for the Marys River at 12:36 a.m. and it remains in effect until late this afternoon. The agency expects the river to begin receding Monday afternoon and to drop below flood stage Monday night.

Flood stage on the Marys River is considered to be 20 feet. The NWS advises that residents should expect low land and agricultural flooding with numerous roads along the river affected. Some structures near the river may begin to flood.

As of 7:30 a.m., water was running over the roadway in the South 13th Street and Chapel Drive vicinity near Grange Hall Road. The city of Philomath has “high water” signs in place to alert motorists to those areas.

The Benton County Emergency Management has information on its website. For the latest observed and forecasted stages on the Marys River, go to the NWS website.

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