Notice to Navigators: Great Lakes


LNM 01-22



This section contains information of special concern to the Mariner.

 Operation Taconite Commenced

At the start of each voyage or transit, to enhance the coordination of ice breaking resources, COTP SAULT STE MARIE directs all shipping companies to provide an estimated time of arrival for their vessels downbound to Whitefish Point, upbound to Detour Reef LT, eastbound to Landing Shoal, westbound to round island, or arriving or Departing from any of the western Superior ports and terminals. Similarly, for vessels operating in Lake Michigan in presence of ice, all shipping companies should provide an estimated time of arrival for vessels entering the Sturgeon Bay Ship Canal, Rock Island Passage or when arriving or departing Escanaba, Green Bay, Marinette or any other ports and terminals within Green Bay. Estimated times of arrival must be received 6 hours prior to a vessels arrival to any of these points or once a day by 1000 (Eastern). Position reports may be filed with Soo Traffic either by landline (906.635.3232), Fax (906.635.3238), or email (SOOTFC@USCG.MIL). A vessel's ETA must be updated whenever the arrival time changes by more than six hours. Mariners are asked to establish VHF radio contact with the servicing icebreaker on VHF-FM Channel 16 approximately one hour before reaching the appropriate service area. Speed limit is reduced by 2 MPH for upbound and downbound traffic from Nine Mile Point to Munuscong Lake Junction Light.



This section contains information of general concern to the Mariners. Mariners are advised to use caution while transiting these areas.

LAKE MICHIGAN – MI – Manistee Harbor – Chart 14938

From 01 Jan 2022 to 28 Feb 2022 Great Lakes Dock and Materials LLC will be conducting dock repairs in Manistee Michigan. Operations are 24 hours a day, 7 days a week. Tug Duluth and Barge Justin Avery can be contacted on VHF channels 16 and 18. Marine equipment will be located along south side of the Manistee River west of the city lift bridge. Equipment includes crane barge and tug boat. All mariners are requested to transit the area with caution.