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Peak Streamflow 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).


USGS 05416900 Maquoketa River at Manchester, IA


Delaware County, Iowa
Hydrologic Unit Code 07060006
Latitude  42°28'12.0", Longitude  91°26'54.84" NAD27
Drainage area 275  square miles
Gage datum 900.41 feet above NGVD29
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Graph of annual maximum streamflow at USGS 05416900 Maquoketa River at Manchester, IA
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