USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

05465700 Iowa River at Oakville, IA

Louisa County, Iowa

Hydrologic Unit Code 07080209

Latitude 41°06'11.5", Longitude 91°03'48.7" NAD83

Drainage area 12,630 square miles

Gage datum 535.32 feet above NAVD88

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Iowa Water Data Support Team
Page Last Modified: 2025-09-08 18:53:52 EDT
0.61 0.53 caww02