Pre-Dredge Survey Mile 067.0-065.5: Illinois River

New survey for mile 66 near Naples is attached. There was a grounding last Thursday which prompted this survey. There is some shoaling on the green buoy line, and channel width is 250-ft wide. Recommend favoring the red buoys or left descending side of the sailing line when transiting.

We are also running in new survey from mile 79 to 74.5 which should be available on Wednesday.


Lance Engle

Dredging Project Manager

St. Louis District