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USGS 05558300 ILLINOIS RIVER AT HENRY, IL

  Stream Site

DESCRIPTION:
Latitude 41°06'26.2",   Longitude 89°21'22.4"   NAD83
Marshall County, Illinois, Hydrologic Unit 07130001
Drainage area: 13,544 square miles
Datum of gage: 425.85 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1990-08-30  2025-11-03  
 Daily Data
    Discharge, cubic feet per second  1981-10-01  2025-11-02  16084 
    Gage height, feet  1993-10-01  2025-11-02  11328 
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll -- YSI  2022-11-04  2025-11-02  3027 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2022-08-04  2025-11-02  3264 
    Suspended sediment concentration, milligrams per liter  1983-10-01  1993-09-29  1247 
    Suspended sediment discharge, short tons per day  1983-10-01  1993-09-29  1247 
    Carbon dioxide, water, dissolved, in situ, milligrams per liter  2022-03-25  2025-11-02  2181 
 Daily Statistics 
    Discharge, cubic feet per second  1981-10-01  2025-08-27 16037 
    Gage height, feet  1993-10-01  2025-08-27 11261 
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll -- YSI  2024-08-09  2024-11-06 88 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2022-08-04  2024-11-06 736 
    Suspended sediment concentration, milligrams per liter  1983-10-01  1993-09-29 1247 
    Suspended sediment discharge, short tons per day  1983-10-01  1993-09-29 1247 
    Carbon dioxide, water, dissolved, in situ, milligrams per liter  2022-03-25  2024-12-03 460 
 Monthly Statistics 
    Discharge, cubic feet per second  1981-10  2025-08  
    Gage height, feet  1993-10  2025-08  
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll -- YSI  2024-08  2024-11  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2022-08  2024-11  
    Suspended sediment concentration, milligrams per liter  1983-10  1993-09  
    Suspended sediment discharge, short tons per day  1983-10  1993-09  
    Carbon dioxide, water, dissolved, in situ, milligrams per liter  2022-03  2024-12  
 Annual Statistics 
    Discharge, cubic feet per second  1982  2025  
    Gage height, feet  1994  2025  
    Chlorophyll fluorescence (fChl), water, in situ, concentration estimated from reference material, micrograms per liter as chlorophyll -- YSI  2024  2025  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2022  2025  
    Suspended sediment concentration, milligrams per liter  1984  1993  
    Suspended sediment discharge, short tons per day  1984  1993  
    Carbon dioxide, water, dissolved, in situ, milligrams per liter  2022  2025  
 Peak streamflow 1982-03-22  2024-01-28  43 
 Field measurements 1981-11-10  2025-09-19  293 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 1983-10-25  2024-02-08  104 
 Water-Year Summary 2006  2024  19 
 Revisions  Loading...
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