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SwedenTualatin River near Dilley water level
River gauge, Tualatin River, Oregon, United States
Right now
Below flood stage
Water level
- Flow
- 172 cfs
- Water temperature
- 58 °F
History
The forecast expects the river to fall to 10.88 ft by Monday, October 26 at 11:00 AM. Issued Saturday, October 17 at 08:39 AM by NOAA National Weather Service.
What this means
The Tualatin River near Dilley is at 11.07 ft, in the normal range.
It is 6.43 ft below the flood stage of 17.50 ft.
The level has held steady over the past 24 hours. The forecast expects the river to fall to 10.88 ft by Monday, October 26 at 11:00 AM. In the last month it has stayed between 11.04 ft and 11.18 ft.
The sensor also reports a water temperature of 58 °F.
Judged against the official flood stage for this gauge. How to read levels
Key numbers
- Highest on record
- 19.27 ftJanuary 21, 1972
- Forecast peak
- 11.06 ftSunday, October 18 at 05:00 AM
Floating and fishing near Tualatin River near Dilley
Normal flows mean predictable rapids and good access at most put-ins.
Flood stage here is 17.50 ft, 6.43 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.
What happens at each level
- 19.50 ft
- 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.
- 18.50 ft
- a few homes are threatened by floodwaters. Numerous roads are flooded and may be closed, and widespread lowland agricultural flooding occurs.
- 17.50 ft
- several minor roads begin to flood and may be closed. Widespread lowland agricultural flooding occurs at this and higher stages.
- 17.00 ft
- expect inundation of low areas, including some farmland, along the river channel.
- 11.07 ft
- Right now
Impact statements from the U.S. National Weather Service.
Highest crests on record
| Rank | Level | Date |
|---|---|---|
| 1 | 19.27 ft | January 21, 1972 |
| 2 | 19.06 ft | February 8, 1996 |
| 3 | 19.00 ft | December 5, 2007 |
| 4 | 18.80 ft | December 22, 1955 |
| 5 | 18.63 ft | December 14, 1977 |
| 6 | 18.53 ft | January 16, 1974 |
| 7 | 18.47 ft | April 5, 1991 |
| 8 | 18.20 ft | December 26, 1980 |
| 9 | 18.19 ft | February 1, 1987 |
| 10 | 18.14 ft | January 15, 1988 |
Weather at the gauge
The forecast is not available right now.
Map
Other gauges on the Tualatin River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Tualatin River at Highway 219 near HillsboroRiver gauge, Tualatin River | 122 cfs | Normal | +6.0 cfs | 7 mi |
| Tualatin River at West LinnRiver gauge, Tualatin River | 2.86 ft | Below flood stage | +0.01 ft | 23 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Wapato Creek at Sw Gaston Road, at GastonRiver gauge, Wapato Creek | 2.6 cfs | Normal | +1.2 cfs | 2.4 mi |
| Wapato Canal at Pump House, at GastonCanal gauge, Wapato Canal | 3.28 ft | Normal | ±0 | 2.4 mi |
| Henry Hagg Lake and ScogginsReservoir | 262.19 ft | Low | 3.7 mi | |
| Willamette River at NewbergRiver gauge, Willamette River | 7,060 cfs | Very low | −250.0 cfs | 15 mi |
| Ef Dairy Creek above Murtaugh Creek near Meacham CornerRiver gauge, Ef Dairy Creek | 7.1 cfs | Very low | ±0 | 15 mi |
| Nestucca River near FairdaleRiver gauge, Nestucca River | 2.5 cfs | Low | ±0 | 18 mi |
| Fanno Creek at DurhamRiver gauge, Fanno Creek | 1.84 ft | Below flood stage | +0.02 ft | 19 mi |
| South Yamhill River at McMinnvilleRiver gauge, South Yamhill River | 9.34 ft | Below flood stage | +0.02 ft | 19 mi |
Questions and answers
What is flood stage for the Tualatin River near Dilley?
The official flood stage is 17.50 ft. The level is currently 6.43 ft below it.
Is gage height the same as water depth?
No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.
What is the water level of Tualatin River near Dilley today?
On Oct 18, 2026, 08:45 AM PDT, the water level was 11.07 ft. Steady over the last 24 hours.
Is Tualatin River near Dilley rising or falling?
Steady over the last 24 hours.
Is the level of Tualatin River near Dilley normal?
Below flood stage. Judged against the official flood stage for this gauge.
What is the highest water level ever recorded at Tualatin River near Dilley?
The highest level on record is 19.27 ft on January 21, 1972.
Is Tualatin River near Dilley expected to rise?
The forecast expects the river to fall to 10.88 ft by Monday, October 26 at 11:00 AM.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:14203500(Agency page)- Coordinates
45.47484, -123.12427(WGS84)- Vertical datum
- NGVD29
- Update interval
- every 15 minutes
- Licence
- Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 11.07 ft | 2026-10-18 15:45 | Provisional |
| Flow | 172 cfs | 2026-10-18 15:45 | Provisional |
| Water temperature | 58 °F | 2026-10-18 14:30 | Provisional |
Download
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How to cite
U.S. Geological Survey: Tualatin River near Dilley (usgs:14203500). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/oregon/tualatin-river-near-dilley
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer