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Streamflow Measurements for Iowa

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Boating safety tips are available from the U.S. Coast Guard.

NOTE: Station Numbers for Iowa precipitation gages have changed (see list).



05420500 Mississippi River at Clinton, IA
Clinton County, Iowa
Hydrologic Unit Code 07080101
Latitude  41°46'50", Longitude  90°15'07" NAD27
Drainage area 85,600  square miles
Gage datum 562.54 feet above NAVD88
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Graph of streamflow measurement data at USGS 05420500 Mississippi River at Clinton, IA
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