Creek IL

Sinking Creek

Illinois • 37.3094, -90.8948

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

61 mi

98 km

Elevation

1,597′ → 501′

1,096 ft drop

Stream Order

Medium River

Slope

0.34%

18.0 ft/mi

Drainage

126 mi²

326 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

484 mi

779 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