River WA OR

Necanicum River

Washington • 45.9665, -123.9180

Length

22 mi

36 km

Elevation

1,534′ → 3′

1,531 ft drop

Stream Order

Large River

Slope

1.31%

69.2 ft/mi

Drainage

82 mi²

212 km²

Avg Flow

571 cfs

1.0 mph velocity

Path to Mouth

21 mi

34 km to ocean

Classification

Headwater

Source Stream

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

Data from USGS & NOAA for informational purposes only. More

Access Sites on Necanicum River

There are 4 boat ramps, launches, and public access points on Necanicum River.