Station list
05536123 CHICAGO RIVER AT COLUMBUS DRIVE AT CHICAGO, IL
LOCATION.--Lat 41°53'18", long 87°37'16", in NE¼SW¼ sec.10, T.39 N., R.14 E., Cook County, Hydrologic Unit 07120003, on left downstream side of bridge within the Columbus Drive bridge structure in Chicago, 0.5 mi downstream from Chicago River Lock and Dam.
PERIOD OF RECORD.--December 1996 to current year.
GAGE.--Acoustical flowmeter. Datum of gage is 579.48 ft above sea level (Chicago City datum).