Scanned Atchafalaya River Hydrographic Survey Books are available for 1967 through 1989 series. These volumes are valuable for engineering, hydrographic, and archeological studies.

Please excerise care when making comparisons between book series data. Carefully review the provided background information about these surveys. Vertical & horizontal datums, sounding & contour datums, river mileages, and other key references have changed during this period.

The scanned plates are presented in a compressed format called Mr.Sid. A Mr.Sid plug-in or viewer is required for your computer. View information on Mr.Sids and download the online Mr.Sid viewer If you are unsure about installing the plug-in please take a look at our demonstration page to see the MrSid Online Viewer's capabilities..

View the Hydrographic Survey maps by SELECTING a Survey Year and then CLICKING a map region.