Stale — older than 1 week No flood stage data USGS

Chicago Ss Canal At Lockport Controlling Works, IL

Updated October 12, 2011 at 12:45:00 AM CDT · Approved · Site 05536998

Current conditions

Historical trends

Hourly measurements

Detailed readings by hour, organized by day

Nearby stations

Other monitoring locations nearby

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Data courtesy of the U.S. Geological Survey.