OPERATIONAL STATUS – POE AND MACARTHUR LOCKS ST. MARYS FALLS CANAL   NOTICE NUMBER: 13043 / L20-14 EFFECTIVE: 12/17/20 08:00 thru 12/18/2021 13:00 EST   The Poe Lock will be closed between 0800 and 1300 December 18, 2020. Diving activities will be taking place in the lock in preparation for dewatering.  The lock will reopen…

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NOTICE TO MARINERS GREAT LAKES  LNM 49-20 SECTION I – SPECIAL NOTICES This section contains information of special concern to the Mariner.   U.S. Coastal and Internal Waters – U.S. Federal Aids to Navigation – Datum Shift to WGS 84 The positions of Aids to Navigation contained in the U.S. Light List Volumes will be…

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OPERATIONAL STATUS – POE AND MACARTHUR LOCKS MARYS FALLS CANAL   NOTICE NUMBER: 12957 / L20-13 EFFECTIVE: 12/14/20 06:00 thru 01/15/2021 23:59 EST   The MacArthur Lock will close for the Navigation Season at 0600 hrs. 14 December 2020 for winter maintenance preparation and bridge placement.   The Poe Lock will remain operational (on a…

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ICE CONTROL BOOMS, COURSE 2, LITTLE RAPIDS CHANNEL ST. MARYS RIVER   NOTICE NUMBER: 12787 / L20-12 EFFECTIVE: 11/12/2020 07:00 thru 11/25/2020 23:59 EST   Installation of the Ice Control Booms at the head of Course 2, Little Rapids Channel will begin on or around 12 November 2020. The scheduled completion date for the ice…

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