Creek OR

Twelvemile Creek

Oregon • 42.9244, -123.7515

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

11 mi

17 km

Elevation

2,905′ → 748′

2,157 ft drop

Stream Order

Large River

Slope

3.81%

201.2 ft/mi

Drainage

38 mi²

98 km²

Avg Flow

-- cfs

1.4 mph velocity

Path to Mouth

79 mi

128 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