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USGS 06485950 BIG SIOUX RIVER AT SIOUX CITY, IA

  Stream Site

DESCRIPTION:
Latitude 42°31'28",   Longitude 96°28'48.7"   NAD27
Woodbury County, Iowa, Hydrologic Unit 101702032507
Drainage area: 8,430.0 square miles
Contributing drainage area: 7,546.0 square miles,
Datum of gage: 1,060.04 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2015-03-03  2025-09-04  
 Daily Data
    Discharge, cubic feet per second  2015-03-01  2025-09-02  3832 
    Gage height, feet  2018-05-01  2025-09-02  2250 
    Gage height, feet  2019-04-25  2019-09-29  135 
 Daily Statistics 
    Discharge, cubic feet per second  2015-03-01  2024-10-09 3511 
    Gage height, feet  2018-05-01  2024-10-09 1925 
    Gage height, feet  2019-04-25  2019-09-29 135 
 Monthly Statistics 
    Discharge, cubic feet per second  2015-03  2024-10  
    Gage height, feet  2018-05  2024-10  
    Gage height, feet  2019-04  2019-09  
 Annual Statistics 
    Discharge, cubic feet per second  2015  2025  
    Gage height, feet  2018  2025  
    Gage height, feet  2019  2019  
 Peak streamflow 2015-07-10  2024-06-23  10 
 Field measurements 1969-07-29  2025-08-05  127 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 2015-02-23  2015-09-10  6 
 Water-Year Summary 2015  2024  10 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS South Dakota Water Science Center
Email questions about this site to South Dakota Water Science Center Water-Data Inquiries
ADDITIONAL INFORMATION
National Weather Service Floodstage 32.0 ft.