US Coast Guard LNM - Great Lakes District (D9)
US · 110 in force · 3 new this week · 86 archived · updated 11 Nov 2026, 19:04 UTC · page 1 of 3
- LNM09-EE8D0ASÉCURITÉNAVAREA 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 - 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 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
- 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
- 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
- LNM09-A12E07SÉCURITÉLAKE 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
- LNM09-8E164DSÉCURITÉHOLLAND 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 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
- 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
- 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 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 - 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 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- LNM09-E3AF48SÉCURITÉWEST 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
- 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
- LNM09-28F4B2SÉCURITÉLAKE 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 - 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 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
- 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 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
- 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
- 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
- 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
- LNM09-3720C7SÉCURITÉLAKE 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 - 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
- LNM09-636476SÉCURITÉWEST 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
- 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
- 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 - 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 - 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 - 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
- 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
- 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
- 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
- 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
- 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
- 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