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USGS 05587450 Mississippi River at Grafton, IL

  Stream Site

DESCRIPTION:
Latitude 38°58'04.7",   Longitude 90°25'44.4"   NAD83
Jersey County, Illinois, Hydrologic Unit 07110009
Drainage area: 171,300 square miles
Datum of gage: 403.32 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2007-10-01  2025-04-21  
 Daily Data
    Discharge, cubic feet per second  1933-04-01  2025-04-20  32923 
    Gage height, feet  1986-11-14  2025-04-21  13897 
 Daily Statistics 
    Discharge, cubic feet per second  1933-04-01  2024-09-30 32722 
 Monthly Statistics 
    Discharge, cubic feet per second  1933-04  2024-09  
 Annual Statistics 
    Discharge, cubic feet per second  1933  2024  
 Peak streamflow 1844-06  2024-07-10  39 
 Field measurements 1988-02-19  2025-02-11  457 
 Field/Lab water-quality samples 1991-07-18  2011-06-08  4 
 Water-Year Summary 2006  2024  19 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Missouri Water Science Center
Email questions about this site to Missouri Water Science Center Water-Data Inquiries