River WA OR

Tualatin River

Washington • 45.3905, -122.7674

Length

85 mi

137 km

Elevation

2,415′ → 92′

2,323 ft drop

Stream Order

8

Major River

Slope

0.52%

27.3 ft/mi

Drainage

707 mi²

1,830 km²

Avg Flow

1,728 cfs

1.4 mph velocity

Path to Mouth

212 mi

341 km to ocean

Classification

Headwater

Source Stream

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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