The Rock Island District Corps of Engineer's Operation
and Maintenance mission includes monitoring our navigation
projects to provide safe navigation. This requires periodic
hydrographic surveying to determine the condition of
and archived hydrographic surveys, performed by the
Rock Island District, can be found at this address.
Information is presented as a viewable (see below for
view information) survey plot. If desired, you may obtain
survey metadata and ASCII data sets through the "Info
Request" link on the left.
note that surveys for the entirety of each project is
not yet available. As of this date, primarily the historic
trouble area surveys are present. The remaining areas
will be filled in as completed.
viewing any of the files, please make sure you have
one or more of the viewers listed at the bottom of this
business hours are 7:30 - 4:00 pm (CST) Monday through
USACE - Rock Island
Clock Tower Bldg.
PO Box 2004
Rock Island, IL 61204-2004
Note: If unable to load web plot, you may need to upgrade
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original DWG drawing files, while ensuring the speedy transmission of drawings. The Autodesk® ‘DWF Viewer’ does not require any other
software except a web browser and is free of charge. To download, click on the above link, fill in your name and e-mail, then click on
the ‘Get Autodesk DWF Viewer’ button to install onto your computer. If the download is successful, a viewable architectural drawing will
appear in which you can pan and zoom the image.
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