US Coast Guard LNM - Great Lakes District (D9)
US · 110 in force · 3 new this week · 86 archived · updated 11 Nov 2026, 19:04 UTC · page 3 of 3
- LNM09-6E0B67SÉCURITÉPORT HURON TO PTE AUX BARQUES - MARINE CITY ATON / Advanced Notice of Change Location: 42-42.06N 082-29.75W Aid Name: Marine City Shoal Lighted Buoy 40 LLNR: 9790 Action: CHANGE Action Type Change Aid Subtype Description: The Coast Guard will be replacing the lighted steel buoy and associated seasonal winter mark with a year-round spar buoy. The buoy hull will remain on station year-round, with the lantern seasonally removed during the winter months versus replacement with a steel ice hull. The change provides both greater flexibility in the seasonal availability of a lighted signal, but also an improved radar signature during unlit off-season periods. The lighted characteristics of the aid and the assigned seasonal dates published in the Light List will remain unchanged. Any questions or comments can be sent to Mr. Brian Hawkins, the Federal Aids to Navigation Manager at the Coast Guard Great Lakes District via email at [email protected]. Valid 2026-04-28 to 2027-01-01. USCG Great Lakes District Local Notice to Mariners 45/2026
- LAKE ST. CLAIR - ST. CLAIR FLATS CANAL ATON / Advanced Notice of Change Location: 42-31.28N 082-41.06W Aid Name: St. Clair Flats Canal Lighted Buoy 4 LLNR: 9585 Action: CHANGE Action Type Change Aid Subtype Description: The Coast Guard will be replacing the lighted steel buoy with a year-round spar buoy. The buoy hull will remain on station year-round, with the lantern seasonally removed during the winter months versus complete removal of the buoy. The change provides both greater flexibility in the seasonal availability of a lighted signal, but will also provide a physical buoy during off-season periods. The lighted characteristics of the aid and the assigned seasonal dates published in the Light List will remain unchanged. Any questions or comments can be sent to Mr. Brian Hawkins, the Federal Aids to Navigation Manager at the Coast Guard Great Lakes District via email at [email protected]. Valid 2026-04-28 to 2027-01-01. USCG Great Lakes District Local Notice to Mariners 45/2026
- LAKE ERIE - CLEVELAND HARBOR General / Bridges / Removal Location: 41-29.60N 081-41.53W Bridge Name: Eagle Avenue Bridge Valid 2026-04-21 to 2027-03-09. USCG Great Lakes District Local Notice to Mariners 45/2026
- LNM09-8FC98ESÉCURITÉLAKE MICHIGAN - GRAND RIVER General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Great Lakes Dock & Materials, L.L.C. 2. TYPE OF OPERATION: Pier Construction and Dredging 3. LOCATION: Grand Haven North Pier, Michigan 4. COMMENCE DATE: April 1, 2026 COMPLETE DATE: November 30, 2026 5. HOURS OF OPERATION: 24 hours per day 6. DAYS OF OPERATION: 7 days per week 7. CONTACT VESSEL: Spud Barge “Justin Avery” and “Jacquelyn” and Tug “George F Bailey” 8. VHF-FM CHANNELS MONITORED: 16 and 18 Valid 2026-03-10 to 2026-09-06. Position 43-03.53N 086-14.87W USCG Great Lakes District Local Notice to Mariners 45/2026
- LNM09-027A3FSÉCURITÉLAKE ERIE - LORAIN HARBOR General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Location: 41-28.58N 082-11.38W Great Lakes Dock and Materials will be conducting break wall repair work at the West Break wall.24 hours a day 7 days a week. On scene vessels can be contacted on VHF channels 7 and 16. Valid 2026-03-09 to 2026-11-15. USCG Great Lakes District Local Notice to Mariners 45/2026
- ST. LAWRENCE SEAWAY - LAKE ONTARIO General / Bridges / Construction Location: 43-14.43N 076-08.45W Bridge Name: 11 Route Bridge Valid 2026-02-06 to 2026-12-31. USCG Great Lakes District Local Notice to Mariners 45/2026
- MAUMEE BAY - MAUMEE RIVER General / Bridges / Rehabilitation Location: 41-34.83N 083-36.42W Bridge Name: I 90 Ohio Tpke Bridge *****REVISED***** OH - LAKE ERIE – Toledo Harbor From February 24, 2026, through July 1, 2028, scaffolding will be installed under the Ohio Turnpike Bridges at Mile 11.42, over the Maumee River. Between the hours of 0700 and 1630, Monday through Saturday two barges 70-feet by 40-feet or smaller will be working under the bridge. The barges will monitor VHF-Fm Radio and will move to accommodate vessels if a 3-hour advance notice is given. A temporary dock will be constructed between shore and the first bridge pier. Snooper trucks will be used, and spotters will warn workers of approaching vessels and move the man lifts to allow vessels to pass. [27/25] [27 JAN 26] Valid 2026-01-27 to 2028-07-01. USCG Great Lakes District Local Notice to Mariners 45/2026
- LAKE MICHIGAN - MILWAUKEE General / Bridges / Maintenance Location: 43-02.92N 087-54.69W Bridge Name: Cherry St Bridge *****REVISED***** WI - LAKE MICHIGAN – Milwaukee Harbor From November 1, 2025, through March 1, 2026, both leaves of the Cherry Street Bridge at Mile 2.29 over the Milwaukee River will be secured to masted navigation. Vessels able to pass under the bridge without an opening may do so at any time. From March 2, 2026, through December 30, 2026, one leaf will be secured to masted navigation while the other leaf operates normally. Three barges 60-foot by 80-foot or smaller will be working under the bridge. The barges will move if a 3-hour advance notice is provided directly to the barges on VHF-FM Marine Radio or by calling 312-735-1639. [40/25] [14JAN26] Valid 2026-01-14 to 2026-07-13. USCG Great Lakes District Local Notice to Mariners 45/2026
- ST. LAWRENCE SEAWAY - LAKE ONTARIO General / Bridges / Construction Location: 43-14.43N 076-08.45W Bridge Name: 11 Route Bridge General/Bridges/Construction From: 2026-01-08 To: 2026-12-31 Location: 43-14.43N 076-08.45W Bridge Name: 11 Route Bridge NY - NEW YORK STATE CANAL SYSTEM - Erie Canal From January 13, 2026, through December 31, 2026, between the hours of 0600 and 1800, Monday through Saturday, contractors will be constructing a temporary highway bridge and demolishing the original E-64 Route 11 Bridge at Mile 150.58 over the Erie Canal, Part of the New York Canal System. A final replacement bridge will be constructed before the temporary bridge is completely removed from the waterway. A 54-feet by 54-feet barge will be working under the bridge spans between the hours of 0600 and 1800, Monday through Saturday. The barge will move to accommodate larger vessels with a 3-hour advance notice. Advance notice should be provided to the barge on VHF-FM Marine Radio Channel 16 or by calling 607-345-7488. [08JAN26] Valid 2026-01-08 to 2026-12-31. USCG Great Lakes District Local Notice to Mariners 45/2026
- LAKE ONTARIO - IRONDEQUOIT BAY General / Hazards To Navigation / Shoaling Reported Location: 43-14.26N 077-32.01W The Coast Guard has received a report of significant shoaling at the entrance to Irondequoit Bay. The controlling depth of 9 feet has been reduced to 2-3 feet. To view the latest survey from March 2026, search “USACE Hydrographic Surveys”, on left pane click USACE District and select Buffalo District, then click USACE Channel and select IRONDEQUOIT BAY HARBOR. Click PDF Plotsheet on survey completed on 3/25/2026. All mariners are advised to use caution when transiting the area Valid 2025-06-27 to 2025-12-24. USCG Great Lakes District Local Notice to Mariners 45/2026