Navigation Notices: Eastern U.S. Rivers
Operational Status – Poe and Macarthur Locks St. Mary Falls Canal
Notice Number: 213330 / L26-02 Effective: 03/25/2026 00:00 thru 01/15/2027 23:45 EDT 1. The Poe Lock will open to all vessel traffic at midnight (0000 hrs) on March 25, 2026. 2. The…
Read MoreSecurity and Crew Changes – ALL BASIN ALERT
ALL BASIN ALERT!!!! Below is one of several notices that have been put out regarding crew change security in the various USACE Districts due to the current global climate. Please…
Read MoreBlack Rock Lock Operating Schedule 2026
Notice Number: 212978-1 Effective: 01/01/2026 14:22 thru 12/31/2026 00:00 EST Black Rock Lock Operations – 2025 navigation season are as follows: 01 Jan- 17 May Monday-Friday Limited operational capabilities due…
Read MoreOperational Status – Poe and Macarthur Locks St. Marys Falls Canal
Notice Number: 212825-1 / L26-01 Effective: 01/09/2026 19:00 thru UNTIL FURTHER NOTICE EST 1. The MacArthur Lock will close to commercial traffic for the season 1900 January 9 2026. MacArthur…
Read MoreDebris Impacting Navigation -Temporary Outage at Bonneville Navigation Lock
Notice Number: 212710 Date: 12/19/2025 09:22 thru 12/19/2025 11:00 PST Recent heavy rainfall has resulted in an increase of debris in the waterways. Mariners are urged to exercise caution while…
Read MoreOperational Status – Poe and MacArther Locks St. Marys Falls Canal
Notice Number: 212559 / L25-24 Effective: 01/15/2026 23:45 thru 03/25/2026 00:00 EST The MacArthur Lock will close for the season when the weather or ice conditions make operation unsafe and/or…
Read MoreOperational Status – Poe and MacArthur Locks St. Marys Falls Canal
Notice Number: 212546 / L25-23 Effective: 01/06/2026 08:00 thru 01/07/2026 17:00 EST 1. The Poe Lock will be temporarily closed January 6, 2026 with January 7 as a backup day…
Read MoreOperational Status – Macarthur and Poe Locks St. Marys Falls Canal
Notice Number: 212378-1 / L25-21 Effective: 11/10/2025 00:00 thru 11/19/2025 23:45 EDT 1. The MacArthur Lock will undergo recurring intermittent closures beginning November 10 and continuing through November 19. Closures…
Read MoreOperational Status – Macarthur and Poe Locks St. Mary Falls Canal
Notice Number: 212378 / L25-21 Effective: 11/10/2025 00:00 thru 11/19/2025 23:45 EDT 1. The MacArthur Lock will undergo recurring intermittent closures beginning November 10 and continuing through November 19. Closures…
Read MorePort of Baltimore, Fort McHenry Channel Reopening Transit Update
Notice Number: 206447-8 Effective: 05/21/2024 12:00 thru 06/24/2024 00:00 EDT Update-07 (10 June 2024): U.S. Coast issued Marine Safety Information Bulletin (MSIB 052-24) announcing that the Captain of the Port…
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