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Operational Status – Poe and MacArthur Locks St. Marys Falls Canal

Navigation Notices: Eastern U.S. Rivers

Operational Status – Poe and MacArthur Locks St. Marys Falls Canal

By Anthony Gex | August 29, 2025

Notice Number: 211740 / L25-18 Effective: 09/09/2025 08:30 thru 09/10/2025 23:45 EDT 1. The Detroit District Dive Team will be conducting multiple dive inspections in the Poe Lock, West Center…

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Operational Status – Poe and MacArthur Locks St. Marys Falls Canal

By Anthony Gex | July 3, 2025

Notice Number: 211148 / L25-14 Effective: 07/08/2025 07:00 thru 07/11/2025 17:00 EDT 1. The Poe Lock will have intermittent short term closures July 8 – 11 from 0700 – 1700.…

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Black Rock Lock Operating Schedule 2025 (Revision 1)

By Anthony Gex | June 27, 2025

Notice Number: 211112 Effective: 06/27/2025 10:36 thru 12/31/2025 00:00 EDT Black Rock Lock Operating Schedule 2025 (Revision 1) Black Rock Lock Operations – 2025 navigation season are as follows: 01…

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All River Basins: USCG LNM’s for week 12-25

By Anthony Gex | March 21, 2025

Please find the links to the USCG LNM’s for week 12-25 below: First District Fifth District Seventh District Eighth District: Western Rivers Eighth District: Gulf Coast Ninth District Eleventh District…

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OPERATIONAL STATUS – POE AND MACARTHUR LOCKSST. MARYS FALLS CANAL

By Anthony Gex | March 14, 2025

Notice Number: 210106 / L25-02 Effective: 03/21/2025 04:00 thru 01/16/2026 04:45 The Poe Lock will open to all vessel traffic on 21 March 2025 at 0800hrs for the shipping season.…

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Black Rock Lock 2025 Operating Schedule

By Anthony Gex | March 10, 2025

Notice Number: 210004-2 / Black Rock Channel Effective: 03/07/2025 16:59 thru 12/31/2025 05:00 2025 BLACK ROCK LOCK OPERATING SCHEDULE 01 Jan – 17 May: Monday-Friday Limited operational capabilities due to…

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