River IL

Hamby Branch

Illinois • 38.2109, -91.4592

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

3 mi

5 km

Elevation

917′ → 720′

197 ft drop

Stream Order

Stream

Slope

1.11%

58.7 ft/mi

Drainage

4 mi²

10 km²

Avg Flow

-- cfs

0.6 mph velocity

Path to Mouth

347 mi

558 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