River WA

Duwamish River

Washington • 47.5430, -122.3338

Length

5 mi

9 km

Elevation

6′ → 5′

1 ft drop

Stream Order

7

Large River

Slope

0.00%

0.2 ft/mi

Drainage

450 mi²

1,165 km²

Avg Flow

1,596 cfs

0.7 mph velocity

Path to Mouth

9 mi

14 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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