River OH

South Branch Portage River

Ohio • 41.2527, -83.5177

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

32 mi

51 km

Elevation

838′ → 650′

188 ft drop

Stream Order

Medium River

Slope

0.11%

6.0 ft/mi

Drainage

113 mi²

293 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

531 mi

855 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