River WA

Middle Nemah River

Washington • 46.4691, -123.8378

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

10 mi

16 km

Elevation

1,095′ → 9′

1,085 ft drop

Stream Order

Medium River

Slope

2.01%

106.2 ft/mi

Drainage

12 mi²

30 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

10 mi

16 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

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Data from USGS & NOAA for informational purposes only. Read source and safety notes

Rain Radar