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US Coast Guard LNM - Great Lakes District (D9)

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LAKE SUPERIOR - APOSTLE ISLANDS General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Mariners are advised that Kokosing Industrial, Inc. – Marine Great Lakes is conducting marina rehabilitation operations at Little Sand Bay Marina, Wisconsin. This is an extension of previous work. Operations will take place from October 1, 2026 through November 15, 2026, daily from 0700 to 1900 (Monday through Sunday). The Tug General, along with barges MM 142 and DB12, will be working on spuds within the marina. Operations will be located primarily within 500 feet of the marina. Additional barges may be moored to an anchor can buoy located northwest of Little Sand Bay Marina at coordinates 46° 56' 56.24" N, 090° 53' 40.21" W. All barges and mooring buoys will be properly marked and lighted in accordance with U.S. Coast Guard regulations. Mariners are requested to use caution when transiting the area, maintain a safe distance from all work vessels and equipment, and proceed at a reduced speed. For further information, contact Nick Howery at (231) 420-1104. Valid 2026-05-10 to 2026-11-15. Position 46-56.87N 090-53.57W USCG Great Lakes District Local Notice to Mariners 45/2026 WEST END OF LAKE ERIE - BOLLES HARBOR General / Marine Construction (Excluding Bridges) / Dredging Location: Bolles Harbor, MI (LaPlaisance Creek from turning basin to end of nav channel) Valid 2026-08-28 to 2026-11-30. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE ERIE - BUFFALO HARBOR General / Miscellaneous Location: Eastern Lake Erie and Buffalo Due to reduced resource availability, the Coast Guard will be decommissioning the following aids significantly earlier than the advertised Light List date: Buffalo Harbor North Entrance Channel Lighted Bell Buoy 1 (LLNR 2690). Buffalo Harbor North Entrance Channel Lighted Buoy 2 (LLNR 2695). Buffalo Harbor North Entrance Channel Lighted Buoy 4 (LLNR 2700). Seneca Shoal Lighted Buoy 2 (LLNR 3360). Early decommissioning is necessary to ensure that the Great Lakes Fall Retrieve Operation is completed prior to the end of the season, and to reduce the possible impacts to waterway restoration in the spring. Any questions or comments can be sent to the Federal Aids to Navigation Manager at the Coast Guard Great Lakes District via email at [email protected]. Valid 2026-10-19 to 2026-12-01. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CALUMET General / Bridges / Maintenance *****REVISED***** IL - LAKE MICHIGAN – Chicago Harbor From August 15, 2025, through December 1, 2026, the Lake Street Bridge at Mile 1.64 (CORPS MILE 325.5) over the South Branch of the Chicago River, will be replaced, one leaf at a time. One half of the channel will be open to navigation without any equipment with a fully operational bridge leaf. The leaf of the bridge being replaced will be secured to masted navigation and will have six barges 120-feet by 80-feet or smaller working near or under the secured leaf. The contractor will display temporary steady burning yellow lights on the bottom and four-corners of the bridge leaves until the permanent bridge lighting can be established. Any equipment moving near mid-channel or in the unaffected side of the channel should be passed with standard agreements in accordance with the Navigation Rules. [16/25] [26/25] Position 41-39.45N 087-38.47W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CALUMET General / Bridges / Maintenance *****REVISED***** IL - LAKE MICHIGAN – Chicago Harbor From April 28, 2025, through October 1, 2027, scaffolding that hangs approximately 6-feet below low steel will be installed under one half of the 127th Street Bridge at Mile 18.81 (CORPS MILE 314.2) over the Calumet-SAG Channel. [05JAN26] [02OCT26] Position 41-39.68N 087-44.98W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE HURON - CASEVILLE HARBOR General / Marine Construction (Excluding Bridges) / Dredging General/Marine Construction (Excluding Bridges)/Dredging Mariners are advised that The King Company, Inc. will be conducting hydraulic dredging operations in the Caseville Federal Channel, Michigan from September 21, 2026 through November 15, 2026. The dredge “Buxton II” will operate 24 hours per day, 7 days a week (weather permitting). Submerged dredge pipe will be lying on the lake floor and will be marked by orange round buoys every 1,000 feet. Two white buoys will be visible north and south of the dredge marking winch anchor locations. The dredge disposal area begins 13,728 feet west of the channel and extends an additional 3,350 feet westward. Material will be placed between the Ordinary High Water Mark (beach) and the 4-foot depth contour. The disposal area will be marked with white buoys on each corner. During rough seas, a bright yellow pipe pontoon measuring 25’ x 8’ x 6’ with two flashing amber lights on each end will be floating outside of the channel. A second identical bright yellow pipe pontoon with two flashing amber lights will be located in the disposal area. Mariners are requested to avoid the dredge, all pipelines, buoys, anchors, and pontoons, maintain a safe distance, reduce wake, and proceed with caution. The main point of contact is Superintendent Joseph Martin. For emergencies or questions, contact the main office at (616) 399-1784 or Superintendent Martin directly at (941) 628-6783. Position 43-56.92N 083-17.35W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CHARLEVOIX General / Bridges / Rehabilitation MI - LAKE MICHIGAN-Michigan City From January 1 through March 31, 2028, the Bridge Street Bridge (U.S. Route 31) across the Pine River just below Round Lake will be secured to masted navigation for maintenance. Vessels able to pass under the bridge may do so at any time. [22JUL26] Position 45-19.13N 085-15.53W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CHICAGO HARBOR General / Bridges / Rehabilitation *****REVISED***** IL - LAKE MICHIGAN – Chicago Harbor From August 15, 2025, through December 1, 2026, the Lake Street Bridge at Mile 1.64 (CORPS MILE 325.5) over the South Branch of the Chicago River, will be replaced, one leaf at a time. One half of the channel will be open to navigation without any equipment with a fully operational bridge leaf. The leaf of the bridge being replaced will be secured to masted navigation and will have six barges 120-feet by 80-feet or smaller working near or under the secured leaf. The contractor will display temporary steady burning yellow lights on the bottom and four-corners of the bridge leaves until the permanent bridge lighting can be established. Any equipment moving near mid-channel or in the unaffected side of the channel should be passed with standard agreements in accordance with the Navigation Rules. [16/25] [26/25] Position 41-53.15N 087-38.27W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CHICAGO HARBOR General / Bridges / Maintenance IL - LAKE MICHIGAN – Chicago Harbor From June 1 through June 19, 2026, between the hours of 0600 and 1800, Monday through Saturday a 80-feet by 40-feet barge will be working under the North Halstead Street Bridge at Mile 2.85 (CORPS MILE 326.7) over the Chicago River North Branch Canal. The barge will move if provided with a 3-hour advance notice. The barge will monitor VHF-FM Marine Channel 16. [20MAY26] Position 41-54.12N 087-38.88W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CHICAGO HARBOR General / Bridges / Inspection IL - LAKE MICHIGAN – Chicago Harbor On July 20 and July 21, 2026, between the hours of 0900 and 1600 daily, inspectors will utilize Snooper Trucks under the Sag Highway Bridge at Mile 28.76 (CORPS MILE 304.2) over the Calumet-SAG Channel. Spotters will warn of approaching vessels and move the man lift to allow vessels to pass. [09 JUL 26] Position 41-41.78N 087-56.18W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CHICAGO HARBOR General / Bridges / Construction From August 10, through December 24, 2026, between the hours of 0600 and 1800, daily, a 150-foot by 60-foot barge will be working under the Chicago Avenue Bridge at Mile 2.40 (CORPS MILE 326.3) over the North Branch of the Chicago River. The barge will monitor VHF-FM Marine Channel 16 and move to accommodate other vessels with a 2-hour advance notice provided directly to the barge. [30JUL26] [18SEP] Position 41-53.78N 087-38.65W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CHICAGO HARBOR General / Bridges / Maintenance From October 12, 2026, through January 11, 2027, scaffolding that hangs approximately 2-feet below low steel will be installed under the North Halstead Street Bridge at Mile 2.65 (CORPS MILE 327.0) over the North Branch of the Chicago River. [18SEP26] Position 41-53.88N 087-38.87W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CHICAGO HARBOR General / Bridges / Construction IL - LAKE MICHIGAN – Chicago Harbor From November 15 through November 20, 202, between the hours of 2100 to 0600 the following morning, a 40-foot by 13-foot barge accompanied by divers will be installing a submarine cable at the Lake Street Bridge, Mile 1.64, over the South Branch of the Chicago River. Mariners should make passing arrangements directly with the barge on VHF-FM Marine Channel 16. [15OCT26] Position 41-53.15N 087-38.27W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CHICAGO HARBOR General / Bridges / Maintenance IL - LAKE MICHIGAN – Chicago Harbor From October 23, through January 19, 2027, between the hours of 0700 and 1600, Monday through Friday a 125-feet by 35-feet barge will be working under the Van Buren Street Bridge, Mile 2.26, (CORPS MILE 324.9) over the South Branch of the Chicago River. The barge will monitor VHF-FM marine Channel 16 and move with a 1-Hour advance notice. [22OCT26] Position 41-52.60N 087-38.25W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CHICAGO HARBOR General / Bridges / Maintenance From November 23, through December 18, 2026, between the hours of 0600 and 1800, Monday through Saturday, a 150-foot by 60-foot barge will be working under the 18th Street at Mile 3.60 (CORPS MILE 323.7) over the South Branch of the Chicago River. The barge will move if provided with a 3-hour advance notice on VHF-FM Marine Channel 16. Position 41-51.47N 087-38.12W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CHICAGO HARBOR General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes Commencing November 15, 2026, through April 3, 2027, the U.S. Army Corps of Engineers (USACE) will close the Chicago Harbor Lock to all navigation at River Mile 327 in Chicago, IL. This closure is required to facilitate structural repairs to the lock chamber walls and floors. Mariners are advised to plan voyages accordingly and seek alternate routes where applicable. For further information or operational inquiries, contact the U.S. Army Corps of Engineers at (815) 510-0361. Position 41-53.32N 087-36.38W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - CHICAGO HARBOR General / Marine Events / Fireworks Navy Pier Summer Series Fireworks from 2200-2230 Position 41-53.50N 087-35.88W 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 LAKE ERIE - CLEVELAND HARBOR General / Bridges / Temp Deviation On October 31, 2026, between the hours of 0900 and 1000 the Willow Avenue Bridge at Mile 1.02 over the Cuyahoga River will be secured to masted navigation in conjunction with the Hermes Run Event. Vessels able to pass under the bridge without an opening may do so at any time. Position 41-29.85N 081-42.63W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE ERIE - CLEVELAND HARBOR General / Bridges / Closure (Scheduled Or Emergency) OH - LAKE ERIE – Cleveland Harbor Until noon on October 29, 2026 the Willow Avenue Bridge at Mile 1.02 over the Cuyahoga Old River Channel will be secured to masted navigation. The process to open the bridge will take approx. 2-3 hours to complete where the bridge will remain in the fully open position for 2-3 weeks until replacement motors can be installed and calibrated to return the bridge to normal operations. [28OCT26] Position 41-29.85N 081-42.63W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE ERIE - CLEVELAND HARBOR General / Hazards To Navigation / Wrecks A submerged houseboat has been reported partially submerged and extending approximately 1 foot above the water in the Cuyahoga River in approximate position 41°29.696'N, 081°41.605'W All mariners are advised to transit the area with extreme caution and keep a sharp lookout for partially submerged debris Valid 2026-10-28 to 2027-04-26. Position 41-29.72N 081-41.58W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE ERIE - CLEVELAND HARBOR General / Miscellaneous Location: 41-32.57N 081-39.08W A temporary buoy will be deployed at this location for scientific data collection within Cleveland Harbor. The spar buoy will be lighted with a Fl Y 4s light. Mariners are urged to use caution while transiting the area. Valid 2026-07-28 to 2026-12-01. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE ERIE - CLEVELAND HARBOR General / Miscellaneous Location: 41-32.54N 081-38.16W A temporary buoy will be deployed at this location for scientific data collection within Cleveland Harbor. The spar buoy will be lighted with a Fl Y 4s light. Mariners are urged to use caution while transiting the area. Valid 2026-07-28 to 2026-12-01. USCG Great Lakes District Local Notice to Mariners 45/2026 WEST END OF LAKE ERIE - DETROIT RIVER General / Bridges / Construction *****REVISED***** MI – DETROIT RIVER – River Rouge From May 18 through May 28, 2026, the Del Ray Connecting Railroad Bridge at Mile 0.34 over the River Rouge Old Channel will be secured to masted navigation for maintenance. Vessels able to pass under the bridge without opening may do so at any time. [22APR26] [20 MAY 26] Position 42-17.38N 083-07.10W USCG Great Lakes District Local Notice to Mariners 45/2026 WEST END OF LAKE ERIE - DETROIT RIVER General / Bridges / Maintenance OH – DETROIT RIVER –River Rouge On November 9 and November 10, 2026, between the hours of 0900 and 1400, each day, the Fort Street Bridge at Mile 2.20 over the River Rouge will be secured to masted navigation for maintenance. Vessels able to pass under the bridge without an opening may do so at any time. [27OCT26] Position 42-17.47N 083-08.55W USCG Great Lakes District Local Notice to Mariners 45/2026 SUPERIOR FRONT CHANNEL - DULUTH HARBOR General / Bridges / Maintenance MN- LAKE SUPERIOR – Duluth-Superior Harbor From January 15, 2026, through March 23, 2026, and again from January 15, 2027, through March 23, 2027, and again from January 15, 2028, through March 23, 2028, the Duluth Ship Canal Bridge at mile 0.24 over the Duluth Ship Canal will be secured to masted navigation for maintenance, vessels able to pass under the bridge without an opening may do so at any time. Position 46-46.73N 092-05.57W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE ERIE - ERIE HARBOR General / Miscellaneous Location: Erie Harbor Due to reduced resource availability, the Coast Guard will be decommissioning Erie Harbor Entrance Lighted Bell Buoy 1 (LLNR 3515) significantly earlier than the advertised Light List date. Early decommissioning is necessary to ensure that the Great Lakes Fall Retrieve Operation is completed prior to the end of the season, and to reduce the possible impacts to waterway restoration in the spring. Any questions or comments can be sent to the Federal Aids to Navigation Manager at the Coast Guard Great Lakes District via email at [email protected]. Valid 2026-10-19 to 2026-12-01. USCG Great Lakes District Local Notice to Mariners 45/2026 ABOVE FIGHTING ISLAND - FLEMING CHANNEL ATON / Advanced Notice of Change Location: 42-21.17N 082-55.96W Aid Name: Peche Island Lighted Buoy 114 LLNR: 8255 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 ERIE - GORDON PARK General / Miscellaneous Location: 41-32.54N 081-38.16W A temporary buoy will be deployed at this location for scientific data collection within Cleveland Harbor. The spar buoy will be lighted with a Fl Y 4s light. Mariners are urged to use caution while transiting the area Valid 2026-07-28 to 2026-12-01. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - GRAND HAVEN General / Marine Construction (Excluding Bridges) / Dredging General/Marine Construction (Excluding Bridges)/Dredging The King Company, Inc. will conduct continuous hydraulic dredging operations in the Grand Haven Inner Federal Channel from October 28, 2026, through December 15, 2026. Dredging will be executed 24 hours a day, 7 days a week, weather permitting, utilizing the hydraulic dredge BUXTON II. A submerged sediment pipeline will be positioned along the bottom and demarcated with round orange buoys placed at 500-foot intervals. Two 2 white buoys will mark dredge winch anchor locations on the port and starboard sides of the dredge. During adverse weather conditions, a 25-foot by 8-foot by 6-foot bright yellow pipe pontoon will be moored outside the navigable channel, marked on each end by flashing amber lights displayed from sunset to sunrise. Dredged material will be transferred to an upland disposal facility. The dredge BUXTON II monitors VHF-FM Channels 16, 18, and 73. Mariners are requested to navigate the vicinity with extreme caution, maintain a proper lookout, and pass at slow speed to minimize wake. Direct operational inquiries to Project Superintendent Joseph Martin at 941 628-6783 or The King Company, Inc. main office at 616 399-1784. Position 43-03.43N 086-15.43W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE 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 GREEN BAY HARBOR ENTRANCE CHANNEL - GREEN BAY CITY General / Bridges / Maintenance *****REVISED***** WI - LAKE MICHIGAN – Fox River From October 15 through November 20, 2026, between the hours of 0730 and 1900, Monday through Friday, a 60-foot by 30-foot barge will be working at the Proposed Brown County South Connector Bridge at Mile 9.94, over the Fox River. The barge will monitor VHF-FM Marine Radio Channel 16 for passing arrangements. [12AUG26] [15OCT26] Position 44-26.43N 088-03.98W USCG Great Lakes District Local Notice to Mariners 45/2026 GREEN BAY HARBOR ENTRANCE CHANNEL - GREEN BAY CITY General / Bridges / Maintenance WI - LAKE MICHIGAN – Fox River On October 29,2026, between the hours of 0800 and 1600 the Ray Nitschke Bridge at mile 1.58, over the Fox River will require a 2-hour advance notice for openings due to ongoing rehabilitation of the bridge. Mariners should provide advance notice directly to the drawtender. [10OCT26] Position 44-31.10N 088-00.92W USCG Great Lakes District Local Notice to Mariners 45/2026 GREEN BAY HARBOR ENTRANCE CHANNEL - GREEN BAY CITY General / Bridges / Rehabilitation WI - LAKE MICHIGAN – Fox River From January 1 through March 31, 2029, the Bart Starr Bridge at mile 1.81, over the Fox River will be secured to masted navigation for maintenance. Vessels able to pass under the bridge without an opening may do so at any time. [27OCT26] Position 44-30.90N 088-01.08W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - INDIANA HARBOR General / Bridges / Repairs, Painting, Or Fender Replacement The Coast Guard has received a report that the bridge fendering is damaged near the Norfolk Southern Railroad Bridge at Mile 0.72 over the Indiana Harbor Canal. Mariners should use caution when transiting the area. [48/24] Position 41-39.60N 087-27.13W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - INDIANA HARBOR General / Bridges / Maintenance IN - LAKE MICHIGAN – Indiana Harbor Canal From July 15 through December 18, 2026, beginning at noon on Mondays and Thursdays and continuing for period of 24-hours,a 60-foot by 60-foot rail barge will be in the draw of the Elgin, Joliet, and Eastern Railroad Bridge at Mile 1.89, of the Indiana Harbor Canal. A weekly meeting will be hosted by Canadian National ([email protected]) and local stakeholders. If foul Weather prohibits the movement of barges along the south shore of Lake Michigan the stakeholders will vote to pause the barge placement to allow for the reasonable needs of navigation. [07JUL26] [02SEP26] Position 41-43.72N 087-32.37W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - INDIANA HARBOR General / Bridges / Maintenance *****REVISED***** IN - LAKE MICHIGAN – Indiana Harbor Canal From July 15 through December 18, 2026, beginning at noon on Mondays and Thursdays and continuing for period of 24-hours,a 60-foot by 60-foot rail barge will be in the draw of the Elgin, Joliet, and Eastern Railroad Bridge at Mile 1.89, of the Indiana Harbor Canal. A weekly meeting will be hosted by Canadian National ([email protected]) and local stakeholders. If foul Weather prohibits the movement of barges along the south shore of Lake Michigan the stakeholders will vote to pause the barge placement to allow for the reasonable needs of navigation. [07JUL26] [02SEP26] Position 41-38.92N 087-28.10W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - INDIANA HARBOR General / Bridges / Repairs, Painting, Or Fender Replacement IN - LAKE MICHIGAN – Indiana Harbor Canal The Coast Guard has received a report that the bridge fendering is damaged near the Norfolk Southern Railroad Bridge at Mile 0.72 over the Indiana Harbor Canal. Mariners should use caution when transiting the area. [48/24] Position 41-39.60N 087-27.13W 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 WEST END OF LAKE ERIE - ISLANDS IN LAKE ERIE General / Bridges / Maintenance From July 6 through July 9, 2026, between the hours of 0600 and 2000, daily, the Norfolk Southern Railroad Bridge at Mile 1.5 over the Portage River will require a 4-hour advance notice for openings due to maintenance. Mariners should provide advance notice directly to the drawtender. Position 41-30.93N 082-57.82W USCG Great Lakes District Local Notice to Mariners 45/2026 KEWEENAW UPPER ENTRANCE - KEWEENAW WATERWAY General / Bridges / Maintenance WI - LAKE SUPERIOR – Kewanee Waterway From December 15, 2027, through April 15, 2028, and again From December 15, 2028, through April 15, 2029, the US 41 Bridge at Mile 16.0 over the Keweenaw Waterway will be secured to masted navigation for maintenance. Vessels able to pass under the bridge without an opening may do so at any time. A 190-foot by 80-foot barge or smaller will be working at the bridge from 0600 to 1900 daily, the barge will monitor VHF-Fm marine channel 16 and will move if provided a 3-hour advance notice. [37/25] Position 47-07.42N 088-34.43W USCG Great Lakes District Local Notice to Mariners 45/2026 KEWEENAW UPPER ENTRANCE - KEWEENAW WATERWAY General / Bridges / Maintenance MI- LAKE SUPERIOR – Kewanee Waterway During May 2027, May 2029, and October 2029, the US 41 Bridge at Mile 16.0 over the Keweenaw Waterway will be in the intermediate position and will not open for recreational vessels during the 0800, Noon, or 1630 scheduled openings to accommodate deck replacements. Recreational vessels able to pass under the bridge without an opening may do so at any time. From December 15 through April 14, 2027, 2028, 2029, and 2030 the bridge will be secured to masted navigation to accommodate rehabilitation of the deck and machinery. [14MAY26] Position 47-07.42N 088-34.43W 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 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 ST. LAWRENCE SEAWAY - LAKE ONTARIO General / Bridges / Rehabilitation NY - NEW YORK STATE CANAL SYSTEM - Erie Canal From November 6, 2026, through April 30, 2027, between the hours of 0700 and 1700 each day, a 75-foot by 25-foot barge will be working under the E-205 Presbyterian Road Bridge at Mile 297.65 over the Erie Canal. The barge will monitor VHF-FM Marine Channel 16 and move to accommodate vessels with a 1-hour advance notice. [29SEP26] Position 43-14.92N 078-16.60W USCG Great Lakes District Local Notice to Mariners 45/2026 ST. LAWRENCE SEAWAY - LAKE AMERICA General / Bridges / Rehabilitation NY - NEW YORK STATE CANAL SYSTEM - Erie Canal from November 6, 2026, through May 15, 2027, scaffolding that hangs approximately 17-feet below steel under one half of the E110 East Avenue Bridge at Mile 226.66 over the Erie Canal. Additionally coffer dams will be installed near the base of the bridge on either side of the canal. [15OCT26] Position 43-02.85N 077-05.55W USCG Great Lakes District Local Notice to Mariners 45/2026 ST. LAWRENCE SEAWAY - LAKE AMERICA General / Bridges / Maintenance NY - NEW YORK STATE CANAL SYSTEM - Erie Canal From October 26 through December 31, 2026, scaffolding that hangs approximately 4-feet below low steel will be installed under one half of the E80 River Road Bridge at Mile 184.7 over the Erie Canal. [19OCT26] Position 43-06.03N 076-29.93W USCG Great Lakes District Local Notice to Mariners 45/2026 ST. LAWRENCE SEAWAY - LAKE AMERICA General / Bridges / Maintenance NY - NEW YORK STATE CANAL SYSTEM - Erie Canal From November 4 through December 4, 2026, scaffolding that hangs approximately 4-feet below low steel will be installed under one half of the E85 Conquest Road Bridge at Mile 193.75 over the Erie Canal. [19OCT26] Position 43-04.77N 076-38.68W USCG Great Lakes District Local Notice to Mariners 45/2026 NIAGARA RIVER - LAKE ERIE General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes There will be maintenance performed on ice boom anchor cables by a tug and crane barge on Lake Erie between Buffalo Outer Harbor and Fort Erie from July 13, 2026 to August 2, 2026. Mariners are advised to use caution when transiting near the work area and remain 100 yards from the barge when possible. For further information, please contact 716-243-6617. Valid 2026-07-13 to 2027-01-08. USCG Great Lakes District Local Notice to Mariners 45/2026 PORT HURON TO PTE AUX BARQUES - LAKE HURON General / Bridges / Rehabilitation MI - LAKE HURON – Port Huron From January 1, 2028, through March 31, 2028, the Military Street bridge at Mile 0.33, over the Black River will be secured to masted navigation. Vessels able to pass under the bridge without an opening may do so at any time. Scaffolding that hangs approximately 4-feet below low steel will be installed under the bridge. Two barges 180-feet by 60-feet will be working in and around the bridge. The barges will move to accommodate vessels traffic with a 12-hour advance notice from mariners by calling 810-985-0165. [28/25] Position 42-58.53N 082-25.45W USCG Great Lakes District Local Notice to Mariners 45/2026 PORT HURON TO PTE AUX BARQUES - LAKE HURON General / Miscellaneous General/Miscellaneous Mariners are advised that Bruce Power has completed the removal of the seasonal surface spar buoys previously described in NAVWARN NW-C-2590-26 along the Lake Huron shoreline near Bruce Power. The spar buoys have been replaced with a series of 15 sub-surface moorings consisting of thermal loggers secured to heavy bottom anchors resting directly on the lakebed at the following locations: STA 39: 44-25.53N 081-30.15W STA 01: 44-25.98N 081-30.87W STA 51: 44-24.55N 081-31.01W STA 52: 44-22.80N 081-32.90W STA 07: 44-22.87N 081-34.03W STA 08: 44-22.06N 081-35.05W STA 12: 44-21.69N 081-34.54W STA 41: 44-15.79N 081-37.10W STA 29: 44-15.86N 081-37.45W STA 53: 44-17.51N 081-36.39W STA B: 44-13.87N 081-37.40W STA F: 44-34.02N 081-34.02W STA 43: 44-19.79N 081-36.66W STA 49: 44-20.24N 081-36.58W STA 50: 44-20.07N 081-37.15W These sub-surface moorings will remain in position until Spring 2027, when they are scheduled to be replaced by the summertime surface spar buoy configuration. Mariners and commercial fishermen are advised to exercise caution and avoid anchoring, trawling, or bottom dragging in the vicinity of the coordinates listed below. For further information, contact Kristen Coleman, Technical Officer, Environment & Sustainability, Bruce Power, at (226) 930-5627 or via email at [email protected]. USCG Great Lakes District Local Notice to Mariners 45/2026 HOLLAND HARBOR - LAKE MACATAWA General / Marine Construction (Excluding Bridges) / Dredging General/Marine Construction (Excluding Bridges)/Dredging The King Company, Inc. will conduct continuous 24/7 hydraulic dredging operations in the Holland Inner Federal Channel from November 6, 2026, through December 31, 2026, between STA 303+00 and STA 311+00. Dredging will be conducted by the dredge BARRY J, operating seven days a week, weather permitting. Dredged material will be transported via pipeline to the city CDF located upriver from the federal channel. A submerged pipeline will rest on the bottom and will be marked with round orange buoys placed at 500-foot intervals. Two white buoys will mark the winch anchors located north and south of the dredge. East of the N. River Ave. Bridge, a floating pipeline marked every 500 feet with round orange buoys will extend upriver to the placement area. During rough sea conditions, a yellow pipe pontoon (25 ft x 8 ft x 6 ft) displaying two flashing lights on each end from sunset to sunrise will moor outside the navigable channel. The dredge BARRY J will monitor VHF-FM channels 16, 18, and 73. Mariners are urged to transit the area with caution, maintain a sharp lookout, minimize wake, and arrange safe passage with the dredge prior to transit. Inquiries may be directed to Project Superintendent Robert Lister at 989-464-1511 or The King Company main office at 616-399-1784. Position 42-47.83N 086-06.85W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE HURON - LAKE MICHIGAN General / Bridges / Rehabilitation WI - LAKE MICHIGAN – Racine Harbor From November 1, 2027, through March 31, 2028, the State Street Bridge at mile 0.53 over the Root River will be secured to masted navigation. Vessels able to pass under the bridge without an opening may do so at any time. [21JUL26] Position 42-43.90N 087-47.15W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE HURON - LAKE MICHIGAN General / Hazards To Navigation / Wrecks Location: 42-38.14N 086-15.85W Report of a vessel partially submerged approximately 10' under the water, southwest of Saugatuck, MI, 3.7nm Southwest of the entrance to the Kalamazoo River. A white fender is attached to the vessel and floating o the waters surface. All mariners are requested to transit the area with caution. Valid 2026-09-09 to 2027-03-08. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE HURON - LAKE MICHIGAN General / Marine Construction (Excluding Bridges) / Dredging Kokosing Industrial will be conducting Dock Construction and Dredging at NE Side of North Manitou Island, West of Leland, MI from 0700-1900 7 days a week. Tug WM Boyd can be contacted on vhf channels 13 and 16. Kokosing IV barge will be working on spuds with Tug WM Boyd within 750' of the island Operations primarily located on the NE side of North Manitou Island Pleasure craft and passing vessels should remain a safe distance from the work at all times. Additional barges will be moored on anchor buoys on the East side of the Island Anchor Buoy Coordinates N 45°07'4.98" W 85°58'27.54" and N 45°07'1.98" W 85°58'27.12" Valid 2026-05-03 to 2026-12-31. Position 45-01.52N 085-46.07W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE HURON - LAKE MICHIGAN General / Miscellaneous Location: 45-19.13N 085-16.92W Temporary surface Buoy 23” round with fixed white light marking exit location of a fiber optic 5” conduit. Valid 2026-09-11 to 2027-05-15. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE ST. CLAIR - LAKE ST CLAIR General / Bridges / Temp Deviation MI – ST CLAIR RIVER –Port Huron On July 15, 2026, between the hours of 1815 and 2100 the Military Street Bridge at Mile 0.33, the 7th Street Bridge at Mile 0.50, and 10th Street Bridge at Mile 0.94, over the Black River will be secured to masted navigation except for intermittent openings in conjunction with the Rotary International Parade. Vessels able to pass under the bridges may do so at any time. [07 JUL 26] Position 42-58.53N 082-25.45W USCG Great Lakes District Local Notice to Mariners 45/2026 DETROIT RIVER - LAKE ST. CLAIR ATON / Advanced Notice of Change Location: 42-21.90N 082-53.87W Aid Name: Lake St. Clair Lighted Buoy 2 LLNR: 8420 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. While the change will marginally reduce the visual and radar range of the physical hull, the benefits of greater flexibility in availability of a lighted signal in nearshore areas and the proximity of fixed aids to navigation, were taken into consideration. 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 DETROIT RIVER - LAKE ST. CLAIR General / Marine Events / Regatta (Race) Lake St. Clair – Bayview Yacht Club - New Baltimore Race Mariners are advised that the Bayview Yacht Club - New Baltimore Sailboat Race will be held on June 13, 2026 1200 - 2200. The event will take place in the vicinity of New Baltimore, MI . Mariners are urged to transit the area with caution. Position 42-37.75N 082-45.12W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE 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 LAKE MICHIGAN - LOWER GREEN BAY General / Hazards To Navigation / Shoaling Reported Shoaling has been reported near the South West of Long Tail Point in position 44-34.98N 087-59.07W. All mariners are requested to transit the area with caution Valid 2026-11-09 to 2027-05-08. Position 44-34.98N 087-59.07W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - LOWER GREEN BAY General / Miscellaneous Location: Green Bay and Door Peninsula Due to reduced resource availability, the Coast Guard will be decommissioning a number of aids in Green Bay, Sturgeon Bay and in vicinity of the Door Peninsula, significantly earlier than their advertised Light List dates. Early decommissioning is necessary to ensure that the Great Lakes Fall Retrieve Operation is completed prior to the end of the season, and to reduce the possible impacts to waterway restoration in the spring. Any questions or comments can be sent to the Federal Aids to Navigation Manager at the Coast Guard Great Lakes District via email at [email protected]. Valid 2026-10-19 to 2026-12-01. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - MANISTIQUE General / Marine Construction (Excluding Bridges) / Dredging Dredging the Manistique Harbor Federal channel. Submerged pipe lying on the lake floor marked by orange round buoys every 1,000 feet. (2) white buoys will be seen North and South of the dredge. The white buoys indicate winch anchor locations. The disposal area starts right on the west side of the West breakwater and goes an additional 6,200’ westward. Placement will be between the 4’ depth contour to the 10’ depth contour. The disposal area will be marked with white ball buoys on each corner. The main contact will be Superintendent Rob Lister. Cell# listed below. During rough seas, our pipe pontoon will be floating outside of the channel. It is bright yellow, 25’x8’x6’ and has (2) flashing amber lights on each end that come on at night. Another pipe pontoon that is bright yellow 25’x8’x6’ and has (2) flashing amber lights on each end will be in the disposal area. Valid 2026-08-21 to 2026-12-05. Position 45-56.62N 086-14.97W USCG Great Lakes District Local Notice to Mariners 45/2026 MANISTEE - MANITOWOC HARBOR OF REFUGE General / Bridges / Temp Deviation WI - LAKE MICHIGAN – Manitowoc Harbor From April 1 through November 30, Monday through Friday, the 8th Street Bridge at Mile 0.29 and the Tenth Street Bridge, mile 0.43, over the Manitowoc River, need not open from 7 a.m. to 8 a.m., and 11 a.m. to noon, and again from 4 p.m. to 5 p.m., except weekends and federal holidays. From 10 p.m. to 4 a.m., the bridges will open on signal if provided a 2-hour advance notice of arrival. There is a control house at each bridge allowing one drawtender to operate one or both bridges remotely. The bridges are required to maintain and operate a radiotelephone, and a two-way public address system capable of responding to sound signals or voice communications between the operator and vessels. [07MAY26] Position 44-05.53N 087-39.47W USCG Great Lakes District Local Notice to Mariners 45/2026 MANISTEE - MANITOWOC HARBOR OF REFUGE General / Bridges / Temp Deviation WI - LAKE MICHIGAN – Manitowoc Harbor From April 1 through November 30, Monday through Friday, the 8th Street Bridge at Mile 0.29 and the Tenth Street Bridge, mile 0.43, over the Manitowoc River, need not open from 7 a.m. to 8 a.m., and 11 a.m. to noon, and again from 4 p.m. to 5 p.m., except weekends and federal holidays. From 10 p.m. to 4 a.m., the bridges will open on signal if provided a 2-hour advance notice of arrival. There is a control house at each bridge allowing one drawtender to operate one or both bridges remotely. The bridges are required to maintain and operate a radiotelephone, and a two-way public address system capable of responding to sound signals or voice communications between the operator and vessels. [07MAY26] Position 44-05.52N 087-39.63W USCG Great Lakes District Local Notice to Mariners 45/2026 MANISTEE - MANITOWOC HARBOR OF REFUGE General / Bridges / Proposal WI - LAKE MICHIGAN – Manitowoc Harbor The Coast Guard is proposing to alter the operating schedule that governs the Eighth Street Bridge, mile 0.29 and the Tenth Street Bridge, mile 0.43, over the Manitowoc River, in the town of Manitowoc, Wisconsin. The City of Manitowoc has requested a full review of the current bridge regulations to alleviate vehicle congestion in downtown Manitowoc and to operate both bridges remotely. We are now proposing to include remote operations for the drawbridges. We invite your comments on this proposed rulemaking. Comments and related material must reach the Coast Guard on or before: November 23, 2026. You may submit comments identified by docket number USCG– 2024–0407 at https:// www.regulations.gov. [22OCT26] Position 44-05.53N 087-39.47W USCG Great Lakes District Local Notice to Mariners 45/2026 PORT 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 MAUMEE BAY - MAUMEE RIVER General / Bridges / Maintenance OH - LAKE ERIE – Toledo Harbor From March 1, 2026, through July 1, 2028, scaffolding will be installed under the Ohio Turnpike Bridges at Mile 11.42, over the Maumee River that hangs approximately 7-feet below low steel. [27/25] Position 41-34.83N 083-36.42W 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 General / Bridges / Maintenance From January 5, 2025, through March 15, 2026, the Franklin Street Bridge at Mile 0.50 over Trail Creek will be secured to masted navigation. Vessels able to pass under the bridge without an opening may do so at any time. Position 41-43.37N 086-54.27W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - MICHIGAN CITY General / Hazards To Navigation / Shoaling Reported Location: 41-43.63N 086-54.63W Description: The Coast Guard has been notified of significant shoaling on the western side of the Michigan City Harbor Channel in vicinity of Michigan City West Pierhead Light (LLNR 19565). In response, the Coast Guard has temporarily deployed two red buoys, Michigan City Shoal Lighted Buoy 2 and Michigan City Shoal Buoy 4, to mark the furthest encroachment of the shoaling. Michigan City Shoal Lighted Buoy 2 has a QR characteristic and should be used as the primary starboard hand mark when entering the harbor channel. In an effort to prevent confusion, Michigan City West Pierhead Light (LLNR 19565) has been temporarily disestablished until dredging can be completed. Mariners are urged to use caution when transiting the area and are discouraged from transiting inside the temporary buoys and west pierhead. Valid 2026-06-24 to 2026-12-21. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - MICHIGAN CITY General / Miscellaneous Location: Michigan City Harbor Description: The Coast Guard has been notified of significant shoaling on the western side of the Michigan City Harbor Channel in vicinity of Michigan City West Pierhead Light (LLNR 19565). In response, the Coast Guard has temporarily deployed two red buoys, Michigan City Shoal Lighted Buoy 2 and Michigan City Shoal Buoy 4, to mark the furthest encroachment of the shoaling. Michigan City Shoal Lighted Buoy 2 has a QR characteristic and should be used as the primary starboard hand mark when entering the harbor channel. In an effort to prevent confusion, Michigan City West Pierhead Light (LLNR 19565) has been temporarily disestablished until dredging can be completed. Mariners are urged to use caution when transiting the area and are discouraged from transiting inside the temporary buoys and west pierhead. Valid 2026-06-24 to 2027-01-01. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - MILWAUKEE General / Bridges / Maintenance WI - LAKE MICHIGAN – Milwaukee Harbor From July 31, 2025, through May 1, 2027, between the hours of 0700 and 1700, Monday through Friday, two barges 80-foot by 60-foot or smaller will be working under the Sixteenth Street Bridge at Mile 2.14 over the Menomonee River. The barges will monitor VHF-FM Marine Channel 16 and will move with a 1-hour advance notice from vessels. [29/25] Position 43-01.97N 087-55.98W 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 LAKE MICHIGAN - MILWAUKEE General / Bridges / Lighting and Other Signals WI - LAKE MICHIGAN – Milwaukee Harbor The Coast Guard has received a report that the upper navigation lights on the Union Pacific Railroad Bridge at Mile 1.19 over the Menomonie River are extinguished. [15JUL26] Position 43-00.82N 087-54.25W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - MILWAUKEE General / Bridges / Lighting and Other Signals WI - LAKE MICHIGAN – Milwaukee Harbor The Coast Guard has received a report that the fendering for the Union Pacific Railroad Bridge at Mile 1.19 over the Kinnickinnic River is damaged and is leaning towards the channel. [02SEP26] Position 43-00.82N 087-54.25W USCG Great Lakes District Local Notice to Mariners 45/2026 WEST END OF LAKE ERIE - MONROE HARBOR General / Marine Construction (Excluding Bridges) / Dredging Location: Monroe Harbor, MI turning basin to nav channel Valid 2026-08-29 to 2026-11-30. USCG Great Lakes District Local Notice to Mariners 45/2026 WEST END OF LAKE ERIE - MOSELEY CHANNEL General / Miscellaneous Location: Sandusky/Moseley Channel. Description: Due to reduced resource availability, the Coast Guard will be decommissioning the following aids earlier than the advertised Light List date: Moseley Channel Lighted Bell Buoy 1 (LLNR 4580). Moseley Channel Lighted Buoy 2 (LLNR 4585). Moseley Channel Lighted Buoy 4 (LLNR 4595). Moseley Channel Lighted Buoy 5 (LLNR 4600). Moseley Channel Lighted Buoy 6 (LLNR 4605). Early decommissioning is necessary to ensure that the Great Lakes Fall Retrieve Operation is completed prior to the end of the season, and to reduce the possible impacts to waterway restoration in the spring. Any questions or comments can be sent to the Federal Aids to Navigation Manager at the Coast Guard Great Lakes District via email at [email protected]. Valid 2026-11-05 to 2026-12-01. USCG Great Lakes District Local Notice to Mariners 45/2026 NAVAREA IV General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Enterprise TE Products Pipeline Company LLC will be conducting excavation, maintenance, and repair operations along an existing natural gas liquids pipeline in the Cayuga / Seneca Canal, located in the Town of Dix, Schuyler County, NY, at approximate position 42°22'03.1"N, 076°51'28.1"W . Operations are scheduled from November 23, 2026, through December 21, 2026. The active work zone extends 60 feet along the length of the canal and 70 feet out into the canal from the eastern bank. An approximately 160-foot wide navigable channel will remain open for vessel traffic. Work equipment includes an amphibious excavator, an amphibious crane, and up to 10 barges. On-scene equipment will monitor VHF-FM Channel 16. Mariners are advised to exercise extreme caution, maintain a proper lookout, and pass at slow/no-wake speed. Valid 2026-11-23 to 2026-12-21. Position 42-22.07N 076-51.48W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - PLATTE BAY TO LELAND General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Location: 45-07.30N 085-58.28W Valid 2026-08-21 to 2026-11-20. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE HURON - PORT SANILAC General / Marine Construction (Excluding Bridges) / Dredging Dredging the Port Sanilac Harbor Federal channel. Submerged pipe lying on the lake floor marked by orange round buoys every 1,000 feet. (2) white buoys will be seen North and South of the dredge. The white buoys indicate winch anchor locations. The disposal area starts South of the South breakwater 4,500’ and goes an additional 5,700’ Southward. Placement will be between the Ordinary High Watermark (Beach) to the 8’ depth contour. The disposal area will be marked with white buoys on each corner. The main contact will be Superintendent Joseph Martin. Cell# listed below. During rough seas our pipe pontoon will be floating outside of the channel. It is bright yellow, 25’x8’x6’ and has (2) flashing amber lights on each end that come on at night. Another pipe pontoon that is bright yellow (25’x8’x6’) and has (2) flashing amber lights on each end will be in the disposal area Valid 2026-09-01 to 2026-11-15. Position 43-25.82N 082-32.10W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - RACINE General / Bridges / Rehabilitation WI - LAKE MICHIGAN – Racine Harbor From November 1, 2028, through March 31, 2029, the Main Street Bridge at mile 0.31, and the State Street Bridge at mile 0.53 over the Root River will be secured to masted navigation. Vessels able to pass under the bridge without an opening may do so at any time. [13AUG26] Position 44-00.80N 088-32.27W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - RACINE General / Bridges / Rehabilitation WI - LAKE MICHIGAN – Racine Harbor From November 1, 2028, through March 31, 2029, the Main Street Bridge at mile 0.31, and the State Street Bridge at mile 0.53 over the Root River will be secured to masted navigation. Vessels able to pass under the bridge without an opening may do so at any time. [13AUG26] Position 42-43.90N 087-47.15W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE ONTARIO - ROCHESTER HARBOR General / Bridges / Construction NY - NEW YORK STATE CANAL SYSTEM - Erie Canal From September 8, 2026, through September 21, 2027, between the hours of 0600 and 1800 daily, two barges, 40-feet by 32-feet will be replacing the E-163, Chili Avenue (NY33A) Bridge at Mile 262.3, over the Erie Canal. The barges will move with 2-hour notice by hailing them on VHF-FM Marine Channel 16 or by calling 585-813-1415. A temporary pedestrian bridge will be installed adjacent to the construction area. All temporary reductions in vertical clearances over the canal will be marked with steady burning yellow lights and any horizontal reduction in clearance will be marked with steady burning red lights until the permanent navigation lights can be installed. [15JUL26] Position 43-08.42N 077-39.95W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE AMERICA - ROCHESTER HARBOR General / Marine Events / Regatta (Race) There will be a sailing regatta consisting of up to 12 sailing vessels, 4 safety vessels and up to 4 temporary buoys from November 1, 2026 until May 1, 2026, occurring every Sunday from 1 p.m. until 3:30 p.m. at the entrance to Genesee River. Mariners are advised to used caution when transiting the area. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE HURON - SAGINAW BAY General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Location: 43-44.17N 083-27.64W Hardman Construction is conducting steel sheet pile and embankment work along the south shore of the Sebewaing River in Sebewaing, MI. Operations are scheduled to conclude on November 27, 2026. Standard work hours are Monday through Friday from 7:00 AM to 5:00 PM, with Saturday operations occurring on an as-needed basis. The project does not employ any temporary aids to navigation or buoys, and no VHF channels are actively monitored by the work crews. Mariners are advised to use extra caution and transit at a slow speed when approaching the stretch of the Sebewaing River between the Sebewaing River Railroad Bridge and the N Center Street Bridge. For additional information, mariners may contact Dave DeClerck at 231-852-4011. Valid 2026-05-06 to 2026-11-27. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE HURON - SAGINAW BAY General / Miscellaneous Location: Sebewaing Harbor Channel, MI Description: The United States Coast Guard, Great Lakes District, is proposing changing the seasonal relief dates of the following floating aids in the Sebewaing Channel and Harbor from November 15th to November 1st: Sebewaing Harbor Channel Lighted Buoy 1 (LLNR 10390), Sebewaing Harbor Channel Lighted Buoy 2 (LLNR 10395), Sebewaing Channel Lighted Buoy 3 (LLNR 10400), Sebewaing Channel Lighted Buoy 4 (LLNR 10405), Sebewaing Channel Lighted Buoy 5 (LLNR 10410), Sebewaing Channel Lighted Buoy 6 (LLNR 10415), Sebewaing Channel Lighted Buoy 7 (LLNR 10420), Sebewaing Channel Lighted Buoy 8 (LLNR 10425). The changes are to better align mariner utilization with seasonal weather limitations of the servicing units. Any questions or comments can be sent to the Federal Aids to Navigation Manager at the Coast Guard Great Lakes District via email at [email protected]. Valid 2026-10-07 to 2026-12-31. USCG Great Lakes District Local Notice to Mariners 45/2026 SAGINAW BAY CHANNEL - SAGINAW RIVER General / Bridges / Rehabilitation *****REVISED***** MI - LAKE HURON – Saginaw River From December 1, 2026, through March 31, 2027, the Lafayette Street Bridge at Mile 6.78, over the Saginaw River will be secured to masted navigation. Vessels able to pass under the bridge without an opening may do so at any time. Currently, six barges 80x190-foot or smaller will be working under the bridge, and they will move if a 3-hour advance notice is provided by calling 608-475-8851, or 608-610-9374, or 989-293-5892. Trestles will be installed extending outward from shore approximately 50 feet. Flashing yellow lights will warn mariners of the trestle’s location. Heel girders will be installed on the four corners of the bridge to enable the new drawspan to be opened during construction. These girders will extend an additional 2 feet into the channel reducing the horizontal clearance to approximately 136-feet. During the winter, the ice will degrade due to the movement of barges and the ice under the bridge should be considered unsafe for pedestrians or vehicles. [30/24] [44/24] [48/24] [8/24] [11/25] [20JAN26] [05 FEB 26] [30JUN26] Position 43-34.78N 083-53.98W USCG Great Lakes District Local Notice to Mariners 45/2026 SAGINAW BAY CHANNEL - SAGINAW RIVER General / Bridges / Inspection On August 24 and August 25, 2026, between the hours of 0800 and 1600 each day, divers will be inspecting the underwater portions of the Genesee Avenue Bridge at Mile 18.65, over the Saginaw River. Spotters will warn them of approaching vessels and move the divers to allow vessels to pass. Position 43-26.02N 083-56.48W USCG Great Lakes District Local Notice to Mariners 45/2026 SAGINAW BAY CHANNEL - SAGINAW RIVER General / Miscellaneous Location: Saginaw River and Saginaw Bay. Due to reduced resource availability, the Coast Guard will be decommissioning a number of aids in Saginaw River and Saginaw Bay, significantly earlier than their advertised Light List dates. Early decommissioning is necessary to ensure that the Great Lakes Fall Retrieve Operation is completed prior to the end of the season, and to reduce the possible impacts to waterway restoration in the spring. Any questions or comments can be sent to the Federal Aids to Navigation Manager at the Coast Guard Great Lakes District via email at [email protected]. Valid 2026-11-04 to 2026-12-01. USCG Great Lakes District Local Notice to Mariners 45/2026 WEST END OF LAKE ERIE - SANDUSKYBAY General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Monday through Friday from 0700 to 1530. Shoreline contractors will be installing a 12" water main. During the construction a 12" water line floating in the bay, on the east side of the causeway. The bay will be unnavigable. Warren Jackie can be contacted on VHF channels 6 and 16. Valid 2026-09-28 to 2027-01-01. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE ST. CLAIR - ST. CLAIR CUT-OFF CHANNEL ATON / Advanced Notice of Change Location: 42-33.09N 082-35.45W Aid Name: St. Clair Cut-Off Channel Lighted Buoy 13 LLNR: 8655 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 ST. CLAIR - ST. CLAIR CUT-OFF CHANNEL ATON / Advanced Notice of Change Location: 42-30.98N 082-41.37W Aid Name: St. Clair Cut-Off Channel Preferred Channel Lighted Buoy CO LLNR: 8590 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. While the change will marginally reduce the visual and radar range of the physical hull, the benefits of greater flexibility in availability of a lighted signal in nearshore areas and the proximity of fixed aids to navigation, were taken into consideration. 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 CUT-OFF CHANNEL ATON / Advanced Notice of Change Location: 42-30.92N 082-41.16W Aid Name: St. Clair Cut-Off Channel Lighted Buoy 32 LLNR: 8600 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. While the change will marginally reduce the visual and radar range of the physical hull, the benefits of greater flexibility in availability of a lighted signal in nearshore areas and the proximity of fixed aids to navigation, were taken into consideration. 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 PORT HURON TO PTE AUX BARQUES - ST. CLAIR RIVER ATON / Advanced Notice of Change Location: 42-40.93N 082-30.20W Aid Name: Fawn Island Lighted Buoy 38 LLNR: 9780 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 PORT HURON TO PTE AUX BARQUES - ST. CLAIR RIVER General / Marine Events / Other The U.S. Coast Guard is establishing a special local regulation area on the St. Clair River, St. Clair, MI, for powerboat races on Saturday July 25, 2026 from 11 a.m. until 5 p.m. and on Sunday, July 26, 2026, from 10:00 a.m. to 7:00 p.m. all U.S. waters of the St. Clair River bounded by latitude 42-50’n to the north and latitude 42-48’n to the south; the shoreline of the St. Clair River on the west; and the international boundary line on the east, will be restricted to all recreational vessel traffic. Temporary race buoys will be in place. No recreational vessel may enter, transit through, or anchor within the regulated area without the permission of the coast guard patrol commander, Coast Guard Station Port Huron, which may be contacted on channel 16 VHF_FM commercial traffic will not be impeded. USCG Great Lakes District Local Notice to Mariners 45/2026 PORT HURON TO PTE AUX BARQUES - ST. CLAIR RIVER General / Marine Events / Fireworks The U.S. Coast Guard is establishing a safety zone on the St. Clair River for drone show display on July 16, 2026. all U.S. waters of the St. Clair river within a 200 yard radius of the fireworks launch site located in the vicinity of Kiefer park, Port Huon, MI, at position 42-58.846’N, 082-25.201’W will be closed to traffic from 10 p.m. to 10:30 p.m. in case of an emergency related to the Bluewater festival, the local Coast Guard station and Coast Guard Sector Detroit may be contacted on channel 16 VHF/FM. Position 42-58.78N 082-25.18W USCG Great Lakes District Local Notice to Mariners 45/2026 ST. LAWRENCE SEAWAY General / Miscellaneous Location: 44-21.47N 075-59.75W Buoy H15/1 temporarily established at 44 21.471N 075 59.754W. Buoy is green with flashing characteristics Q G 1s. Valid 2026-09-03 to 2027-03-02. USCG Great Lakes District Local Notice to Mariners 45/2026 SUPERIOR FRONT CHANNEL - STLOUISBAY General / Bridges / Construction MI- LAKE SUPERIOR – Duluth-Superior Harbor From November 9, 2026, through January 14, 2027, between the hours of 0600 and 1800, daily, two barges 124-foot by 103-foot or smaller will be installing piles for the new John A. Blatnik / I-535 Bridge at Mile 2.74 over the St. Louis Bay and River and the I-535 Bridge at the mouth of Howard’s Bay. The barges will move with 2-hour advance notice from mariners. The new piles will be marked with a steady burning red light. [26OCT26] Position 46-44.95N 092-06.05W USCG Great Lakes District Local Notice to Mariners 45/2026 STURGEON BAY SHIP CANAL - STURGEON BAY SHIP CHANNEL General / Bridges / Maintenance WI - LAKE MICHIGAN – Sturgeon Bay On November 10, 2026, between the hours of 0800 and 1400, the Maple Oregon Bridge at Mile 4.17, over the Sturgeon Bay Ship Canal will be secure to masted navigation for maintenance. Vessel able to pass under the bridge without an opening may do so at any time. [15OCT26] Position 44-49.83N 087-22.75W USCG Great Lakes District Local Notice to Mariners 45/2026 CELERON ISLAND - TRENTON CHANNEL General / Bridges / Inspection On August 19 and August 20, 2026, between the hours of 0800 and 1700 each day, divers will be inspecting the under water portions of the Grosse Ile Parkway (Free) Bridge, at mile 5.60 over the Detroit River. Spotters will warn inspectors of approaching vessels and will move the divers to allow vessels to pass. Position 42-07.65N 083-10.53W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - UPPER GREEN BAY General / Bridges / Maintenance *****REVISED***** WI - LAKE MICHIGAN – Fox River from October 8, 2026, through April 8, 2027, the Wisconsin Street Bridge at mile 56.72 over the Fox River will be secured to masted navigation and scaffolding that hangs approximately 4-feet will be installed under the bridge. Vessels able to pass under the bridge safely, without an opening may do so at any time. [02/24] [03/24] Position 44-01.10N 088-33.07W USCG Great Lakes District Local Notice to Mariners 45/2026 WEST END OF LAKE ERIE - VERMILION General / Bridges / Inspection OH - LAKE ERIE – Vermilion Harbor On September 1, 2026, between the hours of 0900 and 1600, inspectors will be using a 25-foot inspection vessel under the Liberty Avenue Bridge (ROUTE 6) at Mile 0.7 over the Vermilion River. The vessel will monitor VHF-FM marine Channel 16 and move to accommodate other vessels with a 15-minute advance notice of arrival. [19AUG26] USCG Great Lakes District Local Notice to Mariners 45/2026 WEST END OF LAKE ERIE - VERMILION General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes DiGeronimo Development will conduct stone breakwater construction operations in the vicinity of Waterwood Marina in Vermilion, Ohio, from October 12, 2026, through November 13, 2026. Work will take place daily between 0700 and 1900. All construction activities are being conducted from shore using land-based equipment. No marine vessels are associated with this project. Mariners are advised to exercise caution when transiting the adjacent waters. For further information, contact Joshua Decker at (216) 244-2653. Position 41-23.42N 082-27.07W USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - WAUGOSHANCE POINT TO SEUL CHOIX POINT General / Miscellaneous Location: 45-55.18N 085-54.07W Temporary surface Buoy 23” round with fixed white light marking exit location of a fiber optic 5” conduit. Valid 2026-09-11 to 2027-05-15. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - WAUGOSHANCE POINT TO SEUL CHOIX POINT General / Miscellaneous Location: 45-41.12N 085-30.03W Temporary surface Buoy 49” round with fixed white light marking exit location of a fiber optic 5” conduit. Valid 2026-09-11 to 2027-05-15. USCG Great Lakes District Local Notice to Mariners 45/2026 LAKE MICHIGAN - WAUGOSHANCE POINT TO SEUL CHOIX POINT General / Miscellaneous Location: 45-45.54N 085-32.43W Temporary surface Buoy 49” round with fixed white light marking exit location of a fiber optic 5” conduit. Valid 2026-09-11 to 2027-05-15. USCG Great Lakes District Local Notice to Mariners 45/2026 MUNUSCONG LAKE - WEST NEEBISH CHANNEL DOWNBOUND General / Miscellaneous Location: 46-19.32N 084-11.79W West Neebish Channel (Downbound) Upper Range Rear Light (LLNR 13475) is currently being rebuilt and is temporarily disestablished. Significant site work is taking place and the legacy tower has been demolished. The anticipated project completion date is December 2026. Future updates to this operation will be contained within this notice. Mariners are urged to use caution while transiting the area. Valid 2026-09-23 to 2027-03-22. USCG Great Lakes District Local Notice to Mariners 45/2026 AIDS TO NAVIGATION DISCREPANCIES 155 aids reported with a discrepancy. NAME | LLNR | STATUS | AID TYPE Bay Shore County Park Light | 22050 | LT IMCH | PA Thunder Bay Traffic Lighted Bell Buoy TB | 11355 | MISSING | FD Alpena Junction Lighted Buoy Al | 11390 | LT EXT | FD Madeline Island Lighted Buoy 4 | 15290 | LT EXT | FD Chequamegon Point Lighted Buoy 5 | 15296 | LT EXT | FD Gull Island Light | 15260 | Reduced Intensity | FD Au Sable Point Lighted Buoy 1 | 11310 | MISSING | FD Lakeside Association Dock Light | 5270 | LT EXT | PA Driftwood Point Light | 16963 | DISCONTINUED | FD Bolles Harbor Range Front Light | 6550 | WATCHING PROPERLY | FD Bolles Harbor Daybeacon 10 | 6540 | DISCONTINUED FOR DREDGING | FD Calumet East Shoal Lighted Buoy 4 | 19795 | LT EXT | FD Calumet Harbor Lighted Buoy 1 | 19810 | OFF STATION | FD Calumet Harbor Lighted Buoy 7 | 19825 | OFF STATION | FD Canoe Channel Daybeacon 8 | 17210 | STRUCT DEST/TRUB | FD North Point Lighted Buoy 13 | 17919 | MISSING | FD Houghton Point Lighted Buoy 6 | 15300 | MISSING | FD Chequamegon Bay Lighted Buoy 1 | 15305 | MISSING | FD Chicago Harbor Municipal Pier No. 1 Light | 20005 | LT EXT | PA Chicago Lake Front Northeast Shoal Lighted Buoy 2 | 19790 | LT EXT | FD Clemson Shoal Lighted Bell Buoy 4 | 19910 | LT EXT | FD Jackson Park Outer Harbor Light 2 | 19875 | LT EXT | PA Montrose Harbor West Breakwater Light | 20115 | LT EXT | PA Cleveland Harbor West Basin Channel Daybeacon 4 | 4230 | STRUCT DMGD | FD Crooked Lake Daybeacon 81 | 12140 | STRUCT DEST | FD Crooked Lake Daybeacon 82 | 12145 | STRUCT DEST | FD Cordwood Point Lighted Buoy 1 | 11745 | LT EXT | FD Cheboygan Buoy 5 | 12175 | OFF STATION | FD Raynolds Reef Buoy 1 | 11735 | WATCHING PROPERLY | FD William Livingstone Memorial Light | 8240 | Reduced Intensity | FD Indiana Shoal Lighted Gong Buoy 4 | 19625 | MISSING | FD Grand River Buoy 66 | 19220 | MISSING | FD Grand Traverse Bay Shoal Lighted Bell Buoy 3 | 18115 | LT EXT | FD Northport Point Lighted Bell Buoy 2 | 18120 | LT EXT | FD South Point Lighted Bell Buoy 2 | 18100 | LT EXT | FD Green Bay Harbor Entrance Channel Lighted Buoy 27 | 22255 | LT EXT | FD Point Aux Barques Lighted Buoy 1 | 10205 | MISSING | FD Nordmeer Wreck Lighted Buoy WR1 | 11505 | MISSING | FD NOAA Lighted Weather Buoy 45003 | 11510 | MISSING | FD Middle Island Lighted Buoy 13 | 11520 | MISSING | FD Indian River Daybeacon 28 | 11935 | STRUCT DEST | FD Catawba Island Marina South Light 2 | 5847 | LT IMCH | PA Keweenaw Waterway Lighted Buoy 1 | 14775 | MISSING | FD Keweenaw Waterway Lighted Buoy 3 | 14780 | MISSING | FD Keweenaw Waterway Light 25 | 14880 | STRUCT DEST | FD Rouleau Point Range Rear Light | 15045 | REDUCED INT | FD Keweenaw Waterway Light 25 | 14880 | DISCONTINUED | FD Wildwood Park West Detached Breakwater Light | 3975 | LT EXT | PA Wildwood Park Center Detached Breakwater Light | 3980 | LT EXT | PA Wildwood Park East Detached Breakwater Light | 3985 | LT EXT | PA Sheffield Lake Light 2 | 4301 | LT EXT | PA NOAA Lighted Weather Buoy 45008 | 10010 | MISSING | FD Calcite Breakwater Light 2 | 11610 | REDUCED INT | PA Lake Huron Cut Lighted Buoy 12 | 10090 | LT EXT | FD Thirty-First Street Jetty Danger Lighted Buoy A | 19931 | MISSING | PA Thirty-First Street Jetty Danger Lighted Buoy B | 19932 | MISSING | PA Thirty-First Street Jetty Danger Lighted Buoy C | 19933 | MISSING | PA Thirty-First Street Inner Jetty Light | 19934 | LT EXT | PA Northerly Island Danger Lighted Buoy C | 19956.2 | Status Unreported | PA Wilson Avenue Breakwater Light | 20130 | LT EXT | PA Lake Nicolet Lighted Buoy 65 | 13390 | TRLB/OFF STATION | FD Lake Nicolet Lighted Buoy 77 | 13450 | TRLB | FD Peche Island Range Front Light | 8400 | RELIGHTED | FD Ontonagon Harbor West Breakwater Light | 15225 | DBD DMGD | FD Little Rapids Cut Junction Lighted Buoy | 14060 | OFF STATION | FD Round Island Light | 12940 | LT EXT | FD Ludington Inner Breakwater South Light | 18550 | LT IMCH | PA Wiggins Point Shoal Lighted Bell Buoy 4 | 21470 | MISSING | FD Manitowoc Intake East Light | 20842 | LT IMCH | PA Manitowoc Intake West Light | 20843 | LT IMCH | PA Maumee Bay Lighted Buoy 30 | 6195 | OFF STATION | FD Marinette Pierhead Light 3 | 21930 | DBD DMGD | FD Michigan City West Pierhead Light | 19565 | DISCONTINUED FOR DREDGING | FD Middle Neebish Channel Lighted Buoy 43 | 13285 | OFF STATION | FD Middle Neebish Channel Lighted Buoy 59 | 13345 | LT EXT | FD Lakeshore State Park Entrance Lt 1 | 20681 | LT EXT | PA Milwaukee City South Pier No. 2 South Light | 20700 | LT EXT | PA South Shore Park Entrance Lighted Buoy 1 | 20729 | MISSING | PA South Shore Park Entrance Lighted Buoy 2 | 20730 | MISSING | PA Moseley Channel Lighted Bell Buoy 1 | 4580 | WATCHING PROPERLY | FD Mullett Lake Light 23 | 11895 | DBD DEST/STRUCT DMGD/LT EXT | FD Mullett Lake Light 24 | 11900 | STRUCT DEST | FD Mullett Lake Light 24A | 11915 | STRUCT DEST | FD Munuscong Channel Lighted Buoy 29 | 13217 | OTHER DISC AIDS IN AREA/TRLB | FD Munuscong Channel (Upbound) Lighted Buoy 9 | 13070 | LT EXT | FD Grand Island Direction Light | 3075 | LT EXT | FD Pomeroy Reef Lighted Gong Buoy 2PR | 12210 | MISSING | FD Oswego Harbor West Channel Light 2 | 2105 | TRLB | FD Pyramid Point Shoal Lighted Buoy 5 | 18350 | LT EXT | FD South Manitou Island Shoal Lighted Gong Buoy 8 | 18360 | LT EXT | FD Sleeping Bear Lighted Bell Buoy 7 | 18365 | LT EXT | FD Point Iroquois Shoal Lighted Buoy 33 | 14465 | DAYMK IMCH/TRLB | FD Point Iroquois Shoal Lighted Bell Buoy 39 | 14490 | SS INOP/TRLB | FD Pointe Aux Pins Channel Lighted Buoy 8 | 14335 | OTHER DISC AIDS IN AREA/TRLB | FD Brush Point Lighted Buoy 13 | 14350 | REDUCED INT | FD Port Austin Shoal Buoy 1 | 10280 | MISSING | FD Wind Point North Shoal Lighted Buoy 14 | 20610 | LT EXT/OFF STATION | FD Milwaukee South Point Lighted Bell Buoy 1 | 20630 | LT EXT | FD Presque Isle Harbor Entrance Shoal Lighted Bell Buoy 2 | 11560 | MISSING | FD Racine Reef Lighted Buoy 18 | 20483 | LT EXT | FD Racine Reef West End Lighted Buoy 1 | 20485 | LT EXT | FD Racine Launch Basin Entrance Light | 20470 | LT EXT | PA Racine East Harbor Entrance Light 2 | 20490 | LT EXT | PA Racine Harbor Light 9 | 20515 | LT EXT | PA Racine Harbor Light 13 | 20545 | LT EXT | PA Racine Yacht Club Channel Lighted Buoy 2 | 20555 | MISSING | PA Racine Yacht Club Channel Lighted Buoy 3 | 20560 | MISSING | PA Racine Yacht Club Channel Lighted Buoy 4 | 20565 | MISSING | PA Racine Yacht Club Channel Lighted Buoy 5 | 20570 | MISSING | PA Racine Yacht Club Channel Lighted Buoy 6 | 20575 | MISSING | PA Racine Yacht Club Channel Lighted Buoy 8 | 20580 | MISSING | PA Round Island Lighted Buoy 25 | 14420 | OFF STATION | FD Birch Point Range Front Light | 14430 | DBD DMGD | FD Round Island Lighted Buoy 32 | 14460 | DAYMK IMCH/TRLB | FD Majors Shoal East Buoy 1 | 12595 | DAYMK IMCH | FD Charity Island Shoal Lighted Buoy 1 | 10530 | MISSING | FD Charity Island Shoal Lighted Buoy 3 | 10535 | LT EXT | FD Saginaw Bay Channel Range Front Light | 10550 | LT IMCH | FD Saginaw Bay Range Front Passing Light | 10555 | LT EXT | FD Saginaw Bay Channel Lighted Buoy 3 | 10590 | BUOY DMGD/LT EXT | FD Saginaw Bay Channel Lighted Buoy 4 | 10595 | LT EXT | FD Saginaw Bay Channel Lighted Buoy 6 | 10605 | LT EXT | FD Saginaw Bay Channel Lighted Buoy 7 | 10610 | LT EXT | FD Saginaw Bay Channel Lighted Buoy 11 | 10660 | LT EXT | FD Saginaw Bay Channel Lighted Buoy 12 | 10665 | LT EXT | FD Sandusky River Daybeacon Outer | 5090 | DBD DMGD | FD Commodore Bay Marina Entrance Light 2 | 4980 | OFF STATION | PA Little Lake Harbor Light 2 | 14540 | DISCONTINUED | FD Grande Pointe Light 23 | 9690 | TRLT | FD St. James Harbor Lighted Buoy 4 | 17825 | LT EXT | FD St. Lawrence Seaway Light 209 | 1430 | WATCHING PROPERLY | FD St. Lawrence Seaway Lighted Buoy 225 | 1545 | WATCHING PROPERLY | FD Sturgeon Bay Ship Canal Buoy 4 | 21020 | OFF STATION | FD Superior Entry South Breakwater Light | 15595 | REDUCED INT | FD Tawas Point Lighted Buoy 2 | 11245 | MISSING | FD Duncan L Clinch Yacht Harbor Light | 18290 | LT EXT | PA Duncan L. Clinch Yacht Club Light 2 | 18291 | REDUCED INT | PA ACOE LKSTC Water Sensor Buoy 1 | 8892 | MISSING | PA Vidal Shoals Channel Lighted Buoy 3 | 14250 | LT EXT | FD Simmons Reef Lighted Bell Buoy 2 | 17760 | MISSING | FD Hog Island Reef Buoy 10 | 17805 | MISSING | FD Stony Point Shoal Lighted Bell Buoy 1 | 17850 | LT EXT | FD Boulder Reef Lighted Bell Buoy 1 | 21525 | LT EXT | FD Lansing Shoals Light | 21535 | SS INOP | FD Garden Island Shoal Lighted Bell Buoy 1 | 21540 | MISSING | FD Ojibwa Island Shoal Buoy 1 | 21565 | MISSING | FD Port Inland Light | 21500 | LT EXT | PA Waukegan Shoals Buoy 1 | 20325 | OFF STATION | FD Waukegan Shoals Lighted Buoy 3 | 20330 | LT EXT | FD Wilmette Wreck Lighted Bell Buoy WR 2 | 20250 | LT EXT | FD Grossepoint Outer Lighted Bell Buoy 4 | 20255 | LT EXT | FD West Arm Lighted Bell Buoy 4 | 18240 | MISSING | FD West Arm Lighted Buoy 8 | 18265 | LT EXT | FD Cooley Canal Front Range Light | 6015 | STRUCT DEST | PA West Neebish Channel (Downbound) Upper Range Rear Light | 13475 | DISCONTINUED | FD Abbreviations: DBD DMGD dayboard damaged; LT EXT light extinguished; LT IMCH light improper characteristic; MISSING missing; OFF STATION off station; RELIGHTED relighted; STRUCT DEST structure destroyed; STRUCT DMGD structure damaged; TRLB temporarily replaced by lighted buoy; TRLT temporarily replaced by light; TRUB temporarily replaced by unlighted buoy; WATCHING PROPERLY watching properly (corrected). FD federal aid, PA private aid. USCG Great Lakes District Local Notice to Mariners 45/2026

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LAKE MICHIGAN - CHICAGO HARBOR General / Bridges / Maintenance From November 23, through December 18, 2026, between the hours of 0600 and 1800, Monday through Saturday, a 150-foot by 60-foot barge will be working under the 18th Street at Mile 3.60 (CORPS MILE 323.7) over the South Branch of the Chicago River. The barge will move if provided with a 3-hour advance notice on VHF-FM Marine Channel 16. Position 41-51.47N 087-38.12W USCG Great Lakes District Local Notice to Mariners 45/2026
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LAKE MICHIGAN - CALUMET General / Bridges / Maintenance *****REVISED***** IL - LAKE MICHIGAN – Chicago Harbor From April 28, 2025, through October 1, 2027, scaffolding that hangs approximately 6-feet below low steel will be installed under one half of the 127th Street Bridge at Mile 18.81 (CORPS MILE 314.2) over the Calumet-SAG Channel. [05JAN26] [02OCT26] Position 41-39.68N 087-44.98W USCG Great Lakes District Local Notice to Mariners 45/2026
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04/11/2026
LNM09-8E164D View
HOLLAND HARBOR - LAKE MACATAWA General / Marine Construction (Excluding Bridges) / Dredging General/Marine Construction (Excluding Bridges)/Dredging The King Company, Inc. will conduct continuous 24/7 hydraulic dredging operations in the Holland Inner Federal Channel from November 6, 2026, through December 31, 2026, between STA 303+00 and STA 311+00. Dredging will be conducted by the dredge BARRY J, operating seven days a week, weather permitting. Dredged material will be transported via pipelin
04/11/2026
LNM09-EF2AFF View
LAKE ERIE - CLEVELAND HARBOR General / Bridges / Closure (Scheduled Or Emergency) OH - LAKE ERIE – Cleveland Harbor Until noon on October 29, 2026 the Willow Avenue Bridge at Mile 1.02 over the Cuyahoga Old River Channel will be secured to masted navigation. The process to open the bridge will take approx. 2-3 hours to complete where the bridge will remain in the fully open position for 2-3 weeks until replacement motors can be installed and calibrated to return the bridge to normal operations.
04/11/2026
LNM09-F6F68F View
LAKE AMERICA - ROCHESTER HARBOR General / Marine Events / Regatta (Race) There will be a sailing regatta consisting of up to 12 sailing vessels, 4 safety vessels and up to 4 temporary buoys from November 1, 2026 until May 1, 2026, occurring every Sunday from 1 p.m. until 3:30 p.m. at the entrance to Genesee River. Mariners are advised to used caution when transiting the area. USCG Great Lakes District Local Notice to Mariners 45/2026
04/11/2026
LNM09-8E884F View
STURGEON BAY SHIP CANAL - STURGEON BAY SHIP CHANNEL General / Bridges / Maintenance WI - LAKE MICHIGAN – Sturgeon Bay On November 10, 2026, between the hours of 0800 and 1400, the Maple Oregon Bridge at Mile 4.17, over the Sturgeon Bay Ship Canal will be secure to masted navigation for maintenance. Vessel able to pass under the bridge without an opening may do so at any time. [15OCT26] Position 44-49.83N 087-22.75W USCG Great Lakes District Local Notice to Mariners 45/2026
28/10/2026
LNM09-091DF7 View
GREEN BAY HARBOR ENTRANCE CHANNEL - GREEN BAY CITY General / Bridges / Maintenance *****REVISED***** WI - LAKE MICHIGAN – Fox River From October 15 through November 20, 2026, between the hours of 0730 and 1900, Monday through Friday, a 60-foot by 30-foot barge will be working at the Proposed Brown County South Connector Bridge at Mile 9.94, over the Fox River. The barge will monitor VHF-FM Marine Radio Channel 16 for passing arrangements. [12AUG26] [15OCT26] Position 44-26.43N 088-03.98W USCG Gr
28/10/2026
LNM09-65641E View
MANISTEE - MANITOWOC HARBOR OF REFUGE General / Bridges / Proposal WI - LAKE MICHIGAN – Manitowoc Harbor The Coast Guard is proposing to alter the operating schedule that governs the Eighth Street Bridge, mile 0.29 and the Tenth Street Bridge, mile 0.43, over the Manitowoc River, in the town of Manitowoc, Wisconsin. The City of Manitowoc has requested a full review of the current bridge regulations to alleviate vehicle congestion in downtown Manitowoc and to operate both bridges remotely. We are
28/10/2026
LNM09-24FF61 View
WEST END OF LAKE ERIE - DETROIT RIVER General / Bridges / Maintenance OH – DETROIT RIVER –River Rouge On November 9 and November 10, 2026, between the hours of 0900 and 1400, each day, the Fort Street Bridge at Mile 2.20 over the River Rouge will be secured to masted navigation for maintenance. Vessels able to pass under the bridge without an opening may do so at any time. [27OCT26] Position 42-17.47N 083-08.55W USCG Great Lakes District Local Notice to Mariners 45/2026
28/10/2026
LNM09-28F4B2 View
LAKE MICHIGAN - GRAND HAVEN General / Marine Construction (Excluding Bridges) / Dredging General/Marine Construction (Excluding Bridges)/Dredging The King Company, Inc. will conduct continuous hydraulic dredging operations in the Grand Haven Inner Federal Channel from October 28, 2026, through December 15, 2026. Dredging will be executed 24 hours a day, 7 days a week, weather permitting, utilizing the hydraulic dredge BUXTON II. A submerged sediment pipeline will be positioned along the bottom a
28/10/2026
LNM09-AFED51 View
LAKE MICHIGAN - CALUMET General / Bridges / Maintenance *****REVISED***** IL - LAKE MICHIGAN – Chicago Harbor From August 15, 2025, through December 1, 2026, the Lake Street Bridge at Mile 1.64 (CORPS MILE 325.5) over the South Branch of the Chicago River, will be replaced, one leaf at a time. One half of the channel will be open to navigation without any equipment with a fully operational bridge leaf. The leaf of the bridge being replaced will be secured to masted navigation and will have six b
28/10/2026
LNM09-B8097D View
LAKE MICHIGAN - CHICAGO HARBOR General / Bridges / Construction IL - LAKE MICHIGAN – Chicago Harbor From November 15 through November 20, 202, between the hours of 2100 to 0600 the following morning, a 40-foot by 13-foot barge accompanied by divers will be installing a submarine cable at the Lake Street Bridge, Mile 1.64, over the South Branch of the Chicago River. Mariners should make passing arrangements directly with the barge on VHF-FM Marine Channel 16. [15OCT26] Position 41-53.15N 087-38.2
28/10/2026
LNM09-6F4E70 View
GREEN BAY HARBOR ENTRANCE CHANNEL - GREEN BAY CITY General / Bridges / Rehabilitation WI - LAKE MICHIGAN – Fox River From January 1 through March 31, 2029, the Bart Starr Bridge at mile 1.81, over the Fox River will be secured to masted navigation for maintenance. Vessels able to pass under the bridge without an opening may do so at any time. [27OCT26] Position 44-30.90N 088-01.08W USCG Great Lakes District Local Notice to Mariners 45/2026
28/10/2026
LNM09-E3AF48 View
WEST END OF LAKE ERIE - VERMILION General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes General/Marine Construction (Excluding Bridges)/Facilities, Barriers, Manmade Reefs, Riprap, Jetties/Dikes DiGeronimo Development will conduct stone breakwater construction operations in the vicinity of Waterwood Marina in Vermilion, Ohio, from October 12, 2026, through November 13, 2026. Work will take place daily between 0700 and 1900. All construct
28/10/2026
LNM09-7FBBBE View
GREEN BAY HARBOR ENTRANCE CHANNEL - GREEN BAY CITY General / Bridges / Maintenance WI - LAKE MICHIGAN – Fox River On October 29,2026, between the hours of 0800 and 1600 the Ray Nitschke Bridge at mile 1.58, over the Fox River will require a 2-hour advance notice for openings due to ongoing rehabilitation of the bridge. Mariners should provide advance notice directly to the drawtender. [10OCT26] Position 44-31.10N 088-00.92W USCG Great Lakes District Local Notice to Mariners 45/2026
28/10/2026
LNM09-1B7DBE View
ST. LAWRENCE SEAWAY - LAKE AMERICA General / Bridges / Rehabilitation NY - NEW YORK STATE CANAL SYSTEM - Erie Canal from November 6, 2026, through May 15, 2027, scaffolding that hangs approximately 17-feet below steel under one half of the E110 East Avenue Bridge at Mile 226.66 over the Erie Canal. Additionally coffer dams will be installed near the base of the bridge on either side of the canal. [15OCT26] Position 43-02.85N 077-05.55W USCG Great Lakes District Local Notice to Mariners 45/2026
28/10/2026
LNM09-F1E6EF View
SUPERIOR FRONT CHANNEL - STLOUISBAY General / Bridges / Construction MI- LAKE SUPERIOR – Duluth-Superior Harbor From November 9, 2026, through January 14, 2027, between the hours of 0600 and 1800, daily, two barges 124-foot by 103-foot or smaller will be installing piles for the new John A. Blatnik / I-535 Bridge at Mile 2.74 over the St. Louis Bay and River and the I-535 Bridge at the mouth of Howard’s Bay. The barges will move with 2-hour advance notice from mariners. The new piles will be mar
28/10/2026
LNM09-D7E52D View
ST. LAWRENCE SEAWAY - LAKE AMERICA General / Bridges / Maintenance NY - NEW YORK STATE CANAL SYSTEM - Erie Canal From November 4 through December 4, 2026, scaffolding that hangs approximately 4-feet below low steel will be installed under one half of the E85 Conquest Road Bridge at Mile 193.75 over the Erie Canal. [19OCT26] Position 43-04.77N 076-38.68W USCG Great Lakes District Local Notice to Mariners 45/2026
28/10/2026
LNM09-42E248 View
PORT HURON TO PTE AUX BARQUES - LAKE HURON General / Miscellaneous General/Miscellaneous Mariners are advised that Bruce Power has completed the removal of the seasonal surface spar buoys previously described in NAVWARN NW-C-2590-26 along the Lake Huron shoreline near Bruce Power. The spar buoys have been replaced with a series of 15 sub-surface moorings consisting of thermal loggers secured to heavy bottom anchors resting directly on the lakebed at the following locations: STA 39: 44-25.53N 081
28/10/2026

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