LAKE HURON - LAKE MICHIGAN
General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes
Mariners are advised that Chicago Underwater, LLC will be conducting commercial dive operations at approximate position 42° 08.124' N, 086° 29.152' W (42.135405°, -86.485867°) from October 19, 2026 through October 27, 2026. Operations will take place daily between the hours of 0700 and 1700, Monday through Friday, from the vessel LC-34. A diver down flag and an Alpha flag will be flown during all diving operations. Mariners are requested to maintain a minimum distance of 300 feet from the vessel whenever these flags are displayed. The vessel will be monitoring VHF-FM Channel 16. For further information, contact Steven Hughes at (814) 553-2300.
Valid 2026-10-17 to 2026-10-27.
Position 42-08.12N 086-29.15W
USCG Great Lakes District Local Notice to Mariners 40/2026