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US Coast Guard LNM - Northwest District (D13)
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- COLUMBIA RIVER - EUREKA General / Marine Construction (Excluding Bridges) / Dredging The M/V YAQUINA may be conducting dredging activities in Yaquina Bay Entrance (RM 51+10 to RM 52+10) from 03 – 10 Nov 2026. Disposal will be at (RM 53 WA side). USACE requests mariners transit at their slowest safe speed to minimize wake when in the vicinity of a dredge and proceed with caution after passing arrangements have been made on VHF-FM channel 13. Vessel(s) and/or equipment may encroach into the channel. Mariners are advised that the start and ending dates for dredging activities may vary due to unforeseen on-site conditions, such as gill net fishing, weather and other factors. Position 46-09.98N 123-13.73W USCG Northwest District Local Notice to Mariners 44/2026
- VANCOUVER TO BONNEVILLE - LADY ISLAND General / Miscellaneous Advanced American Construction will be operating the derrick barge DB 4100 from 26OCT26 through 04NOV26 near the entrance of Chinook Landing Boat Launch – Columbia River RM 118.4 to support marine construction operations. Working hours will be Monday – Friday 0700 – 1630. The derrick barge will monitor VHF-FM 13 & 16 during working hours. During non-working hours, the derrick barge will remain on station with steady white lights on all four corners. For more information please contact John Winstead – 541-350-2979 or [email protected] Position 45-33.67N 122-26.73W USCG Northwest District Local Notice to Mariners 44/2026
- LNM13-495FD9ArchivedSECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Marine Events / Boat Parade A ship parade will be occurring along the Vancouver Waterfront, Vancouver, WA on the Columbia River starting from the M. James Gleason Boat Ramp from 7:00 p.m. to 9:00 p.m. on December 11th, 2026. This parade will involve up to 60 participants and mariners are requested to transit the area with caution. For additional details, contact Jay Hensleigh at 971-271-3395. Position 45-36.22N 122-37.13W USCG Northwest District Local Notice to Mariners 44/2026
- LNM13-E51B18ArchivedSNOHOMISH RIVER General / Bridges WASHINGTON – EVERETT HARBOR – SNOHOMISH RIVER – BNSF Bridge Notice The Coast Guard intends to approve a temporary bridge deviation from the operating schedule that governs the BNSF Bridge 38.3 Bridge (BRDG UID 29759) across Ebey Slough at mile 1.5. This deviation will support mechanical repairs from 0800 on 02 November 2026 to 1500 on 18 November 2026. BNSF Bridge 38.3 provides 5 feet of vertical clearance in the closed-to-navigation position at high tide. The subject bridge will not be able to open for emergency vessels responding to emergencies. An alternate route for vessels to use during this deviation period is via Union Slough. If any mariner cannot support this deviation request, please submit comments by 22 October 2026 at [email protected]. For more information on this event contact Michael Walsh at 402-937-2013 or email at [email protected]. Position 48-02.83N 122-10.85W USCG Northwest District Local Notice to Mariners 44/2026
- WAUNA General / Marine Construction (Excluding Bridges) / Dredging The M/V YAQUINA may be conducting dredging activities in the Columbia River, Wauna-Driscoll Ranges/West Bar (RM 40+30 to RM 46+40) from 03 – 10 Nov 2026. Disposal will be at (RM 40 & 45). USACE requests mariners transit at their slowest safe speed to minimize wake when in the vicinity of a dredge and proceed with caution after passing arrangements have been made on VHF-FM channel 13. Vessel(s) and/or equipment may encroach into the channel. Mariners are advised that the start and ending dates for dredging activities may vary due to unforeseen on-site conditions, such as gill net fishing, weather and other factors. USCG Northwest District Local Notice to Mariners 44/2026
- LNM13-FADFECArchivedHALE PASSAGE - BELLINGHAM BAY General / Miscellaneous The Washington Department of Fish and Wildlife will be conducting sea duck captures in Bellingham Bay from November 2 through November 10, 2026. Captures are expected to occur near Portage Island and near the Nooksack River delta. Four vessels will be used during the capture operations: one 28-foot aluminum enclosed center console (R/V Puffin), one 16-foot Boston Whaler, and two 13-foot rigid hull inflatable boats (RHIBs). All vessels will be equipped with required safety equipment, including navigation lights, signaling and communication devices. Capture vessels will be communicating on VHF channel 72; VHF channel 16 will also be monitored. Daily operations will begin at approximately 0400 hours, with vessels departing from Squalicum Harbor Marina in Bellingham. Capture activities are expected to conclude between midday and early afternoon, at which time all vessels will return to Squalicum Harbor. Sea ducks will be captured using 36-meter-long floating mist nets and decoys. This equipment will be deployed before dawn and removed at the conclusion of each day’s operations. Flashing strobe lights will be attached to the nets during predawn deployment to improve their visibility. Nets will be continuously monitored by capture vessels. Matthew Hamer will be the primary (on water) point of contact and may be reached at 360-522-6361. Matthew Wilson will be land-based and may be contacted in case of emergency at 509-654-2909. USCG Northwest District Local Notice to Mariners 44/2026
- LNM13-18A38AArchivedPORT WASHINGTON NARROWS General / Marine Events / Other 07 NOV 2026, 1200-1400. Engineering competition launching produce from pier into water. Small patrol craft will monitor perimeter to keep passing craft out of fallout area and recover launched items. USCG Northwest District Local Notice to Mariners 44/2026
- COLUMBIA RIVER - BAKER BAY WEST CHANNEL General / Marine Construction (Excluding Bridges) / Dredging HME Construction Inc will be performing clamshell dredging and dump scow disposal operations near Baker Day Channel from 18 Oct – 10 Nov 2026, working 7 days a week 24 hours a day. Dredge Site extends from USCG Station Cape Disappointment to 1 NM down the channel. Dredge spoils will be transported to Columbia River Miles 6 - 7.5, 2000 ft north of the shipping lane. Vessels include Dredge Boat Seahorse, one split-hull dump scow, Tug Terilyn and support tug Douglas, monitoring VHF Channels 13, 16, 67, 68, or 69. Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made. For additional information, please contact HME Project Manager at 503-250-1827 or 360-904-2978. USACE Contracting Officers Representative is Nathan Miller, 360-899-8223. USCG Northwest District Local Notice to Mariners 44/2026
- LNM13-B6E13CArchivedSECTOR PUGET SOUND, SUBMERGED LAND ACT (SLA) - STRAIT OF JUAN DE FUCA General / Marine Events / Regatta (Race) 07-08 NOV 2026, 0800-1800 each day. Two day sailboat race around San Juan County with an overnight stop at Roche Harbor. The race will start Nov 7 at Lydia Shoal Rosario Strait and proceed CLOCKWISE around San Juan County and stop for the day at Mosquito Pass. The following morning the race will resume of Battleship Island and continue CLOCKWISE around the north end of the County to conclude at our original starting point Lydia Shoal. USCG Northwest District Local Notice to Mariners 44/2026
- ADMIRALTY INLET - HOOD CANAL General / Marine Construction (Excluding Bridges) / Dredging Duwamish Services will be conducting dredging operations near Western Port Gamble Bay from 16 - 06 Nov 2026. Dredge sediments will be disposed of at the Dredge Material Management Program (DMMP) approved Port Gardner site. Mariners are requested to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made. For additional information, contact Jacquie Ptacek, Environmental Planner, Anchor QEA at (206) 971-2690 or email [email protected] Position 47-50.50N 122-34.95W USCG Northwest District Local Notice to Mariners 44/2026
- LNM13-46AA91ArchivedELK ROCK - WILLAMETTE RIVER PORTLAND TO NEWBERG General / Bridges / Lighting and Other Signals Multiple up and down river lights are extinguishing. Position 45-25.50N 122-39.28W USCG Northwest District Local Notice to Mariners 44/2026
- LNM13-43667BArchivedLAKE WASHINGTON General / Bridges WASHINGTON – LAKE WASHINGTON SHIP CANAL – LAKE WASHINGTON – Bridge Inspection Washington State Department of Transportation and Fickett Structural Solutions will be performing scheduled inspections on the I-90 East Channel Bridge (BRDG UID 31176 / 31114) across Lake Washington East Channel from October 26 - 30, 2026. The inspections will be conducted via a spud barge with an aerial lift, and the barge will be repositioned as necessary. The working VHF channel 18 will be used by the vessels on site. Navigation will not be impacted, however, the spud barge will be spudded over night in the vicinity of the subject bridge. Mariners are requested to use minimum safe speed causing no wake in the vicinity of the spud barge. Support vessels will be working within the no wake zone. The on site supervisor is Mark Steen and can be contacted at (206) 391-5461 or [email protected]. Position 47-34.73N 122-11.98W USCG Northwest District Local Notice to Mariners 43/2026
- LNM13-45312CArchivedUNION BAY REACH - LAKE WASHINGTON General / Bridges / Temp Deviation WASHINGTON – LAKE WASHINGTON SHIP CANAL – Montlake Bridge deviation notice The Coast Guard has approved a temporary deviation from the normal operating schedule that governs the Montlake Street Bridge (BRDG UID 31183) across the Lake Washington Ship Canal, mile 5.2. The Montlake Street Bridge need not open the draw for marine vessels during heavy road traffic for the 2026 University of Washington football games on the following dates and times: - 06 Sep, 1000 to 1330 and 1600 to 1830; - 12 Sep, 0930 to 1300 and 1530 to 1800; - 19 Sep, 1300 to 1700 and 1900 to 2200; - 26 Sep, 1700 to 2030 and 2300 to 0130; - 09 Oct, 1500 to 1830 and 2100 to 2330; - 07 Nov, TBD; - 21 Nov, TBD. The deviation is necessary to accommodate vehicular traffic attending football games at Husky Stadium at the University of Washington, in Seattle, Washington. This deviation allows Montlake Bridge to remain in the closed-to-navigation position before and after each game. Due to television scheduling, game times will be published at later dates when determined, and the MSI will be updated with the bridge closure times. Vessels which do not require a bridge opening may continue to transit beneath this bridge during the closure. The bridge will be required to open, if needed, for vessels engaged in emergency response operations during this closure period. The Coast Guard will publish any updates or changes to this operating schedule in future MSI announcements. The bridge shall operate in accordance with 33 CFR § 117.897 at all other times. If any mariner cannot support the dates listed for a bridge closure, please submit a comment by 04 Jul 2026 at [email protected]. For more information, contact Colleen Kelly at (425) 739-3700. Position 47-38.85N 122-18.28W USCG Northwest District Local Notice to Mariners 43/2026
- SECTOR PUGET SOUND, SUBMERGED LAND ACT (SLA) - STRAIT OF JUAN DE FUCA General / Threatened And Endangered Species Advisory (TESS Advisory) / Marine Wildlife Migration Effective 01 Jun to 31 Oct 2026, the ECHO Program voluntary inshore route alteration is active for all tugs transiting the Canadian inshore area of the Strait of Juan de Fuca to reduce underwater noise for at-risk whales. If it is safe and operationally feasible to do so, tugs are requested to navigate either through the outbound shipping lane or the inshore route alteration zone, while maintaining a buffer distance of 1,000 meters from the traffic separation scheme (TSS). The inshore route alteration zone is 1,500 meters wide and occurs in the area between 123-52-21.192 W, 48-18-37.332 N and 124-31-33.378 W, 48-28-53.316 N, covering a distance of approximately 28 NM. For more detailed information, visit the following web address: https://www.portvancouver.com/echo USCG Northwest District Local Notice to Mariners 43/2026
- LNM13-361065ArchivedPUGET SOUND - SHILSHOLE BAY General / Marine Events / Regatta (Race) 31 OCT 2026, 1000-1700. Annual sailing regatta in Shilshole Bay. Course will be between West Point, Skiff Point, Point Jefferson, and Richmond Beach. USCG Northwest District Local Notice to Mariners 43/2026
- SECTOR PUGET SOUND, SUBMERGED LAND ACT (SLA) - STRAIT OF JUAN DE FUCA General / Threatened And Endangered Species Advisory (TESS Advisory) / Marine Wildlife Migration Effective 01 Jun to 31 Oct 2026, the Enhancing Cetacean Habitat and Observation (ECHO) Program voluntary ship slowdown in the vicinity of Swiftsure Bank is in effect for all inbound and outbound commercial and government vessels to reduce underwater noise for at-risk whales. If it is safe and operationally feasible to do so, commercial and government vessels are requested to not exceed the following speeds through the water: 11 knots – Bulkers, tankers, general cargo vessels, and government vessels; and, 14.5 knots – Vehicle carriers, cruise ships, and container vessels. The voluntary ship slowdown takes place at Swiftsure Bank between 125° 17' W or 48° 19' N on the western or southern sides, and 124° 40’ W on the eastern side. All vessels transiting inbound or outbound are asked to slowdown when it is safe and operationally feasible to do so. Speed transition zones are in place about 2 nautical miles prior to entering the slowdown area. The ECHO Program is led by the Vancouver Fraser Port Authority in collaboration with government agencies, Indigenous communities, industry partners and environmental groups. For more detailed information, refer to the following internet web address: https://www.portvancouver.com/echo/ USCG Northwest District Local Notice to Mariners 43/2026
- SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS will be conducting dredging activities near Tongue Point Crossing, (RM 24+30 to RM 26+25), between 27 Oct – 02 Nov 2026. Disposal sites with be located at RM 5 (WA side). USACE requests mariners transit at their slowest safe speed to minimize wake when in the vicinity of a dredge and proceed with caution after passing arrangements have been made on VHF-FM channel 13. Vessel(s) and/or equipment may encroach into the channel. Mariners are advised that the start and ending dates for dredging activities may vary due to unforeseen on-site conditions, such as gill net fishing, weather and other factors. Position 46-15.88N 123-43.78W USCG Northwest District Local Notice to Mariners 43/2026
- TANSY POINT - ASTORIA General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS will be conducting dredging activities near Tongue Point Crossing, Columbia River (RM 18+20 to RM 21+05), between 27 Oct – 02 Nov 2026. Disposal sites with be located at RM 5 (WA side). USACE requests mariners transit at their slowest safe speed to minimize wake when in the vicinity of a dredge and proceed with caution after passing arrangements have been made on VHF-FM channel 13. Vessel(s) and/or equipment may encroach into the channel. Mariners are advised that the start and ending dates for dredging activities may vary due to unforeseen on-site conditions, such as gill net fishing, weather and other factors. Position 46-12.98N 123-45.68W USCG Northwest District Local Notice to Mariners 43/2026
- SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS will be conducting dredging activities near the mouth of the Columbia River, (RM -02+00 to RM 02+00), between 27 Oct – 02 Nov 2026. Disposal sites with be located at NHS, DWS, SWS. USACE requests mariners transit at their slowest safe speed to minimize wake when in the vicinity of a dredge and proceed with caution after passing arrangements have been made on VHF-FM channel 13. Vessel(s) and/or equipment may encroach into the channel. Mariners are advised that the start and ending dates for dredging activities may vary due to unforeseen on-site conditions, such as gill net fishing, weather and other factors. Position 46-15.28N 124-04.93W USCG Northwest District Local Notice to Mariners 43/2026
- COLUMBIA RIVER - DESDEMONA SANDS General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS may be conducting dredging activities in the Columbia River at Upper Desdemona Shoal (RM 7+00 to 9+30) from 27 Oct – 02 Nov 2026. Disposal will be at RM 4 & 5 (WA side). USACE requests mariners’ transit at their slowest safe speed to minimize wake when in the vicinity of a dredge and proceed with caution after passing arrangements have been made on VHF-FM channel 13. Vessel(s) and/or equipment may encroach into the channel. Mariners are advised that the start and ending dates for dredging activities may vary due to unforeseen on-site conditions, such as gill net fishing, weather and other factors. USCG Northwest District Local Notice to Mariners 43/2026
- SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA General / Miscellaneous West Coast Hopper Maintenance Dredging will be conducting pipeline installation and movement of equipment operations at the East Sand Island (RM 04+00 to RM 06+40) from 19 Oct 2026 through 30 Dec 2026. Operations and vessel transits will be conducted 7 days per week, 24 hours per day. Working vessels include a hopper dredge, M/V Dredge Bayport, 03 crew boats, M/V John M, M/V Aggie and M/V Flasher and 04 tugboats, M/V Ocean Joy, M/V Voyager, M/V Jax, and M/V Ernie G. Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made. Working vessels will be monitoring VHF-FM channels 13 and 16. For additional information, contact Paul Karscay, Dredge Bayport Captain (562) 762-5450, Taylor McRae, Project Manager (904) 228-5782, Rebecca Read, Project Engineer (904) 466-2564, and Juan Valdez at (904) 697-6099. Position 46-15.60N 123-58.68W USCG Northwest District Local Notice to Mariners 43/2026
- LNM13-A577E7ArchivedSHILSHOLE BAY - LAKE UNION General / Marine Events / Regatta (Race) 01 NOV 2026, 0800-1330. Annual rowing regatta on Lake Union, through the Lake Washington Ship Canal, and ending in Union Bay. Annual approximately 3-mile timed head race for club, high school and collegiate crews. Rowing shells start near College Club in Lake Union, proceed under University Bridge through Portage Bay and Montlake Cut, make the buoyed turn in Union Bay, and finish near the UW Conibear Shellhouse. USCG Northwest District Local Notice to Mariners 43/2026
- LAKE UNION - UNION BAY REACH General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Redside Construction, Inc. will be conducting marine demolition and float system installation at Foster Island, WA for the WA Park Arboretum Waterfront Trail Renovation, in approximate location 47-38.78’ N 122-17.551W, from 16 May 2026 through 01 Nov 2026. A 40’ x 90’ barge and support vessels will be staged off the pier face and will be monitoring VHF-FM channels 13 and 16. White flashing lights will be used to demarcate the barge. Mariners are requested to use caution and reduce wake when transiting the area. For additional information, contact Jeremy Helser at (360) 250-4328 or Sam Berry at (206) 940-0564. Position 47-38.78N 122-17.57W USCG Northwest District Local Notice to Mariners 43/2026
- SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA General / Miscellaneous Shorelink Networks Inc will be conducting submarine cable maintenance and repair operations near Rock Island Dam on the Columbia River from 17 – 31 Oct 2026. Standard working hours are Mon-Sun 0700-1700. M/V SEA BEAST will be monitoring VHF Channel 172 and 16. Mariners are urged to transit at their slowest safe speed to minimize wake and keep a 80 ft district from working vessels. For additional information, please contact the Owner, Intermountain Infrastructure Group, Jeff Yount at 303-810-4006, [email protected] or Contractor, Shorelink Networks Inc, Darren Dofher at 604-786-5074, [email protected]. USCG Northwest District Local Notice to Mariners 43/2026
- TANSY POINT - SKIPANON WATERWAY General / Marine Construction (Excluding Bridges) / Dredging HME Construction Inc will be performing clamshell dredging and dump scow disposal operations near the mouth and Harbor of Skipanon River from 07 Sep – 20 Oct 2026. Dredge spoils will be transported to W-10.4-IW and O-11.9-IW. Vessels include Dredge Boat Sea Vulture, one split-hull dump scow, Tug Terilyn and Tug St. Helens, monitoring VHF Channels 13, 16, 67, 68, or 69. Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made. For additional information, please contact HME Project Manager at 503-250-1827 or 360-904-2978. USACE Contracting Officers Representative is Nathan Miller, 360-899-8223. Position 46-11.08N 123-54.40W USCG Northwest District Local Notice to Mariners 43/2026
- COLUMBIA RIVER - MILLER SANDS General / Marine Construction (Excluding Bridges) / Dredging The M/V YAQUINA may be conducting dredging activities in the Columbia River at Miller Sands (RM 21+50 to 26+25) from 27 Oct - 02 Nov Oct 2026. Disposal will be at RM 24 (WA side). USACE requests mariners’ transit at their slowest safe speed to minimize wake when in the vicinity of a dredge and proceed with caution after passing arrangements have been made on VHF-FM channel 13. Vessel(s) and/or equipment may encroach into the channel. Mariners are advised that the start and ending dates for dredging activities may vary due to unforeseen on-site conditions, such as gill net fishing, weather and other factors. USCG Northwest District Local Notice to Mariners 43/2026
- SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Marine Construction (Excluding Bridges) / Dredging Mason Hopper Dredge Bayport will be conducting hopper dredging operations on the lower Columbia River from (RM 03+00 to 105+00) from 12 Jul through 01 Nov 2026. Specifically targeting Miller Sands and Pillar Rock at (RM 24+20 to 25+40). Disposal will be at various flow lane disposal sites. Hours of operation are 7 days per week, 24-hrs per day. M/V Dredge Bayport will serve at the Hopper Dredge with M/V John M and M/V Aggie serving as the crew/survey vessel. Working vessels may be hailed on VHF-FM channels 13, 16 and 66. Mariners are requested to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made. For additional information, contact Paul Karscay/Paul Wittkopf, Dredge Bayport Captains at 562-762-5450, Taylor McRae, Project Manager at 904-228-5782, Rebecca Read, Project Engineer at 904-466-2564 or Juan Valdez, Operations Manager at 904-697-6099. Position 46-15.40N 124-01.48W USCG Northwest District Local Notice to Mariners 43/2026
- COLUMBIA RIVER - WILLAMETTE RIVER General / Marine Construction (Excluding Bridges) / Dredging The Port of Portland will be conducting berth maintenance activities at Terminal 2 and Terminal 4 marine facilities located on the Willamette River from 01 – 30 OCT 2026. Terminal 2 is located at RM 10 and Terminal 4 is located at RM 4.5. The pile work will be completed using a barge mounted crane along with attendant vessels and barges. Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution. For additional information, contact Richard Vincent at 503-415-6236 or [email protected] USCG Northwest District Local Notice to Mariners 43/2026
- SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - TILLAMOOK BAY General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Trade West Construction is moving jetty material to a material offloading facility for use on the Tillamook Bay South Jetty repairs. Jetty stone will be transported from the Port of Garibaldi, approximate location 45-33.23N 123-54.90W, to a Material Offload Facility on Kincheloe Point on the Bay Ocean Peninsula in approximate location 45-33.12N 123-56.15W. The tugboat and support vessel involved in this operation will monitor VHF-FM channels 8 and 10. Mariners are asked to maintain at least 100 feet from all tug and barge operations. Please keep crab pots clear of the navigational channel leading into Crab Harbor. Pots obstructing barge movement will be respectfully relocated. Additionally, stone material will be transported and placed on the jetty. Mariners are strongly advised to keep a safe distance from the repair work on the jetty. This project is expected to continue into the Fall of 2026. For more information, contact Keyanee Faught at (435) 669-7976 or email [email protected]. USCG Northwest District Local Notice to Mariners 43/2026
- LNM13-A9E386ArchivedPUGET SOUND - TACOMA HARBOR General / Marine Events / Regatta (Race) 31 OCT 2026, 0930-1600. Annual sailing regatta in Commencement Bay. Course begins at Browns Point, proceeds around the Tacoma Outfall Lighted Buoy, then around Quartermaster Harbor Shoal Buoy 2, and finishing near Commencement Bay Shoal Lighted Buoy A. USCG Northwest District Local Notice to Mariners 43/2026
- LNM13-A12C78ArchivedLAKE WASHINGTON General / Bridges WASHINGTON – LAKE WASHINGTON SHIP CANAL – LAKE WASHINGTON – Bridge Inspection Washington State Department of Transportation and Fickett Structural Solutions will be performing scheduled inspections on the I-90 East Channel Bridge (BRDG UID 31176 / 31114) across Lake Washington East Channel from October 26 - 30, 2026. The inspections will be conducted via a spud barge with an aerial lift, and the barge will be repositioned as necessary. The working VHF channel 18 will be used by the vessels on site. Navigation will not be impacted, however, the spud barge will be spudded over night in the vicinity of the subject bridge. Mariners are requested to use minimum safe speed causing no wake in the vicinity of the spud barge. Support vessels will be working within the no wake zone. The on site supervisor is Mark Steen and can be contacted at (206) 391-5461 or [email protected]. Position 47-34.73N 122-12.03W USCG Northwest District Local Notice to Mariners 43/2026
- LNM13-D50012ArchivedPUGET SOUND - SHILSHOLE BAY General / Marine Events / Regatta (Race) 23-25 OCT 2026, 1100-1800 each day. Annual multiday regatta in Shilshole Bay between Alki Point and Point Jefferson. USCG Northwest District Local Notice to Mariners 40/2026
- LNM13-0474B0ArchivedDISTRICT 13, OCEANIC BOUNDARY TO EEZ - SECTOR COLUMBIA RIVER, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous The Tillamook UAS Test Range will be conducting operations in W-570 airspace on 13 – 16 Oct 2026. Operations include the launch and recovery of various unmanned aircraft and flight testing in several locations within area W-570 including a operational area approximately 15 – 30 nautical miles west of Tillamock, centered on 45-23.78N 124-33.54W. Mariners should use caution when transiting this area. For more information, mariners can call Chris Strole, Tillamook Test Range Manager at (503) 944-1190 (Office) or (725) 577-2082 (Cell). Position 45-23.78N 124-32.53W USCG Northwest District Local Notice to Mariners 40/2026
- LNM13-2F1927ArchivedUNION BAY REACH - LAKE WASHINGTON General / Marine Events / Regatta (Race) 10 OCT 2026, 0900-1300. Annual rowing regatta on Lake Washington. Course circumnavigates Mercer Island, starting and ending at Mount Baker Beach Park. USCG Northwest District Local Notice to Mariners 40/2026
- SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COOS BAY General / Marine Construction (Excluding Bridges) / Dredging The M/V YAQUINA may be conducting dredging activities in Coos Bay - North Bend Turn (RM 08+40 to RM 10+10) from 29 Sep – 06 Oct 2026. Disposal will be at Site F and G (FWB). USACE requests mariners transit at their slowest safe speed to minimize wake when in the vicinity of a dredge and proceed with caution after passing arrangements have been made on VHF-FM channel 13. Vessel(s) and/or equipment may encroach into the channel. Mariners are advised that the start and ending dates for dredging activities may vary due to unforeseen on-site conditions, such as gill net fishing, weather and other factors. Position 43-25.57N 124-13.23W USCG Northwest District Local Notice to Mariners 40/2026
- SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - YAQUINA BAY General / Marine Construction (Excluding Bridges) / Dredging The M/V YAQUINA may be conducting dredging activities in Yaquina Bay Entrance (RM 00-50 to RM 00+40) from 29 Sep - 06 Oct 2026. USACE requests mariners transit at their slowest safe speed to minimize wake when in the vicinity of a dredge and proceed with caution after passing arrangements have been made on VHF-FM channel 13. Vessel(s) and/or equipment may encroach into the channel. Mariners are advised that the start and ending dates for dredging activities may vary due to unforeseen on-site conditions, such as gill net fishing, weather and other factors. Position 44-36.72N 124-04.62W USCG Northwest District Local Notice to Mariners 40/2026
- GRAYS HARBOR - HOQUIAM RIVER General / Bridges / Closure (Scheduled Or Emergency) The PSAP Railroad Bridge (LLNR 16071.1) across the Hoquiam River in Hoquiam, WA, has been vandalized. The bridge cannot open and all lights are extinguished UFN. Position 46-58.32N 123-52.63W USCG Northwest District Local Notice to Mariners 40/2026
- COLUMBIA RIVER - BAKER BAY WEST CHANNEL General / Marine Construction (Excluding Bridges) / Dredging HME Construction Inc will be performing clamshell dredging and dump scow disposal operations near Baker Day Channel from 18 Sep – 25 Oct 2026, working 7 days a week 24 hours a day. Dredge Site extends from USCG Station Cape Disappointment to 1 NM down the channel. Dredge spoils will be transported to Columbia River Miles 4.5 - 6.5, 1000 ft north of the shipping lane. Vessels include Dredge Boat Seahorse, one split-hull dump scow, Tug Terilyn and support tug Douglas, monitoring VHF Channels 13, 16, 67, 68, or 69. Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made. For additional information, please contact HME Project Manager at 503-250-1827 or 360-904-2978. USACE Contracting Officers Representative is Nathan Miller, 360-899-8223. USCG Northwest District Local Notice to Mariners 40/2026
- LNM13-65B326ArchivedDECEPTIONPASS - SKAGIT BAY General / Bridges / Rehabilitation WASHINGTON – SKAGIT RIVER – Bridge Notice Skagit County Public Works will be performing maintenance rehabilitation work on the 94 year old Marblemount Bridge over the Skagit River aka Cascade River Road Bridgen near Marblemount WA. Latitude and Longitude: (48-31.61N 121-25.75W). Beginning 09 March 2026 to 27 October 2026 a working platform will be installed below the bridge that will reduce the vertical navigation clearance by 3ft. Mariners are advised to use caution when transiting below the bridge. The containment will be marked with warning lights so local mariners can easily identify and navigate their way through the bridge. For more information please contact Elliot Brasch Project Manager 206.261.9311 [email protected] Position 48-31.60N 121-25.75W USCG Northwest District Local Notice to Mariners 40/2026
- District 13, Oceanic boundary to EEZ - Sector Columbia River, Exclusive Economic Zone (EEZ) / Space Operations / Hazardous Warning Area / Significant National Interest (Hazardous) Oceanside Descending Trunk Hazard area Hazardous operations for NASA Crew-12 Reentry, including splashdown in the Pacific Ocean, will occur between 06 OCT 2026, 23:45 UTC and 19 OCT 2026, 19:25 UTC. Hazardous operation areas are bounded by the following coordinates: Hazard Area: 37.7N, -124.466667W 38-22.00N 126-32.00W 40.65N, -130.483333W 43-38.00N 136-41.00W 45N, -135.6W 41.95N, -129.316667W 39-37.00N 125-20.00W 38.133333N, -124.05W 37.7N, -124.466667W Mariners are advised to remain clear of these areas for the duration of operations. For more details or comments contact Space X at [email protected] or on VHF-FM Chan. 05, 06 or 16. USCG Northwest District Local Notice to Mariners 40/2026
- ADMIRALTY INLET - HOOD CANAL General / Marine Construction (Excluding Bridges) / Dredging Duwamish Services will be conducting dredging operations near Western Port Gamble Bay from 16 - 30 Oct 2026. Dredge sediments will be disposed of at the Dredge Material Management Program (DMMP) approved Port Gardner site. Mariners are requested to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made. For additional information, contact Jacquie Ptacek, Environmental Planner, Anchor QEA at (206) 971-2690 or email [email protected] Position 47-50.50N 122-34.95W USCG Northwest District Local Notice to Mariners 40/2026
- LNM13-08945FArchivedEDIZ HOOK - PORT ANGELES General / Marine Events / Regatta (Race) 25 OCT 2026, 0900-1300. Annual rowing regatta in Port Angeles. Participants will start near Hollywood Beach, round several temporary buoys in the harbor and return to the start. USCG Northwest District Local Notice to Mariners 40/2026
- LNM13-06569FArchivedSNAKE - SNAKE General / Miscellaneous The Little Goose navigation lock, Snake River (RM 70.3) will be removed from service from 0630 to 1700 on Wednesday, 14 October 2026 to allow maintenance personnel to perform work on powerhouse roof transmission components and restore transformer and generation units. Because the dam will be operating on limited emergency generator power during this work, the lock will be inoperable. For additional information, contact the NWW Operations Division at (509) 527-7364. Position 46-34.93N 118-01.65W USCG Northwest District Local Notice to Mariners 40/2026
- COLUMBIA RIVER - WESTPORT General / Marine Construction (Excluding Bridges) / Dredging The Dredge Oregon under contract with the Port of Portland will perform maintenance dredging near the Columbia River at Wauna-Driscoll Ranges from 11 Sep – 19 Oct 2026. Dredging operations will occur on the Washington side outside of the channel, between RM 44+10 and RM 44+30. Dredge Oregon, along with workboats Clackamas, Ivanhoff, and Williams monitor VHF 13 and 16. Mariners are requested to contact the dredge to make passing arrangements and proceed with minimum wake. Dredge personnel may also be reached by phone at (503) 369-1505 or (503) 789-7238. Position 46-08.77N 123-21.52W USCG Northwest District Local Notice to Mariners 40/2026
- LNM13-BBC5B5ArchivedPUGET SOUND - SHILSHOLE BAY General / Marine Events / Regatta (Race) 10-11 OCT 2026, 1000-1800 each day. Two day sailing regatta in Shilshole Bay. Course will remain East of the traffic separation scheme and between West Point and Richmond Beach. USCG Northwest District Local Notice to Mariners 40/2026
- LNM13-92CF5FArchivedHALE PASSAGE - BELLINGHAM BAY General / Marine Events / Regatta (Race) 10 OCT 2026, 0800-14700. Annual sailing regatta in Bellingham Bay. Participants will start at the GP Outfall Buoy, circumnavigate Lummi Island and return to the GP Outfall Lighted Buoy. USCG Northwest District Local Notice to Mariners 40/2026
- LNM13-7CEAF7ArchivedPUGET SOUND - SHILSHOLE BAY General / Marine Events / Regatta (Race) 15-18 OCT 2026, 1000-1600 each day. Sailing regatta held in Shilshole Bay. Course will be East of the traffic separation scheme between West Point and Richmond Beach. USCG Northwest District Local Notice to Mariners 40/2026
- LNM13-E32D51ArchivedRICH PASSAGE - SINCLAIRINLET General / Marine Events / Regatta (Race) 17 OCT 2026, 1000-1800. Annual sailing regatta in Sinclair Inlet. USCG Northwest District Local Notice to Mariners 40/2026
- LNM13-10DEF8ArchivedPUGET SOUND - SHILSHOLE BAY General / Marine Events / Regatta (Race) 09 AUG - 25 OCT 2026, 1200-1700. Annual biweekly sailing regatta in Shilshole Bay between Meadow Point, Scatchet Head, and Possession Point. USCG Northwest District Local Notice to Mariners 40/2026
- LNM13-C30B1DArchivedHALE PASSAGE - BELLINGHAM BAY General / Marine Events / Regatta (Race) 24 OCT 2026, 0800-1600. Sailing regatta in Bellingham Bay which circumnavigates Jack Island. Participants start at the GP Outfall Lighted Buoy, round Eliza Rocks Junction Light to starboard, then Viti Rocks Light, Jack Island, and Padilla Bay Lighted Bell Buoy 4 to Port, returning to GP Outfall Lighted Buoy. USCG Northwest District Local Notice to Mariners 40/2026
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