Creek IL

Third Creek

Illinois • 38.3737, -91.4958

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

14 mi

23 km

Elevation

874′ → 535′

338 ft drop

Stream Order

Medium River

Slope

0.45%

23.9 ft/mi

Drainage

103 mi²

266 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

768 mi

1,235 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