Tualatin River near Dilley

Last updated: Aug 11, 2025, 10:05 AM UTC
No watches, warnings or advisories are in effect for this area.

Flood Impacts 🅘

  • 19.5 - expect major and widespread flooding in the upper Tualatin Valley, with numerou road closures likely and several homes flooded or isolated due to surrounding flood waters.
  • 18.5 - a few homes are threatened by floodwaters. Numerous roads are flooded and may be closed, and widespread lowland agricultural flooding occurs.
  • 17.5 - several minor roads begin to flood and may be closed. Widespread lowland agricultural flooding occurs at this and higher stages.

Gauge Info

Coordinates 45.4747, -123.125
RFC NWRFC
State OR
WFO PQR
County Washington
Data Provider(s)
US Geological Survey USGS--Water Resources of the United States
USGS 14203500

Gauge Location

Recent Crests

1. 17.67 ft on 11-25-2016
2. 17.93 ft on 12-09-2015
3. 17.57 ft on 03-30-2012
4. 17.48 ft on 01-09-2009
5. 17.88 ft on 01-02-2009

Historic Crests

1. 19.34 ft on 12-22-1964 1
2. 19.27 ft on 01-21-1972
3. 19.06 ft on 02-08-1996
4. 19.00 ft on 12-05-2007
5. 18.80 ft on 12-22-1955

Vertical Datum Table

type NGVD29
major Flooding 167.07 ft
moderate Flooding 166.07 ft
minor Flooding 165.07 ft
action 163.57 ft
Latest Value 159.60 ft
Gauge Zero 147.57 ft

Gauge Photos

Photo 1 of 4

Downstream view from Spring Hill Rd Bridge

Probability Information

Photo 1 of 1

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

WFO Information

Weather Forecast Office
Portland
5241 NE 122nd Avenue
Portland, OR 97230-1089
Official Homepage