Station list
05587060 ILLINOIS RIVER AT HARDIN, IL
LOCATION.--Lat 39°09'37", long 90°36'55", in NW¼NW¼ sec.26, T.10 S., R.2 W., Calhoun County, Hydrologic Unit
07130011, on right bank at downstream side of State Highways 16 and 100 bridge out north edge of Hardin, 1.6 mi downstream
from Macoupin Creek and at mile 21.5.
DRAINAGE AREA.--28,690 mi2, does not include diversion from Lake Michigan through the Chicago Sanitary and Ship Canal,
which has occurred since Jan. 17, 1900.
PERIOD OF RECORD.--Daily gage heights, October 1986 to current year. Gage-height record for February 1932 to Sept. 30, 1986,
available in files of U.S. Army Corps of Engineers. Partial gage-height records from 1878 through 1880 available in files of U.S. Army Corps
of Engineers.