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US Coast Guard LNM - Northwest District (D13)

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STRAIT OF JUAN DE FUCA - ADMIRALTY INLET General / Miscellaneous MSIB 004-26 Quiet Sound Voluntary Slowdown https://www.pacificarea.uscg.mil/Our-Organization/Northwest-District/District-Staff/dp/dpw/notices/ The Quiet Sound voluntary commercial vessel slowdown in Admiralty Inlet aims to reduce underwater noise in Southern Resident killer whale critical habitat. The 2025-26 slowdown will be in effect starting at 0001 PST on 3 September 2026 and will remain in effect 24 hours per day until 2359 PST on 31 January 2027, at the latest, depending on orca presence. More information can be found at: https://quietsound.org/admiralty-inlet-slowdown. When in effect, the slowdown requests all inbound and outbound commercial vessels transiting through the slowdown zone not exceed the following speeds through water when safe and operationally feasible: 11 knots – General cargo, bulkers and tankers 14.5 knots – Vehicle carriers, cruise ships, and container vessels The voluntary vessel slowdown takes place in the inbound and outbound lanes of the shipping lanes within these boundaries: Northwest: a line drawn from Pt Hudson (48-07.04N 122-44.93W) to Admiralty Head (48-09.25N 122-40.77W) Northeast: a line drawn from Randall Pt (47-58.99N 122-21.17W) to Mukilteo Light (47-56.89N 122-18.48W) South: a line drawn from Apple Cove Pt (47-48-55.926N, 122-28.51.186W) to Edwards Pt (47-48.20N 122-23.70W) Speed transition zones are in place about 5 nautical miles prior to entering the slowdown area. Any directions from Puget Sound Vessel Traffic Service take precedence and supersede these measures. The voluntary slowdown is led by the Quiet Sound program at Maritime Blue, in cooperation with government agencies, tribal governments, industry partners and conservation groups. For more detailed information related to this slowdown and the Quiet Sound program, including a graphic of the voluntary slowdown area, refer to the following web address: https://quietsound.org/admiralty-inlet-slowdown. USCG Northwest District Local Notice to Mariners 45/2026 BONNEVILLE POOL General / Bridges All navigation lights are extinguished. The deck lights are watching properly. The bridge needs new electrical wiring and the navigation lights will be extinguished UFN. Temporary navigation lights may be installed at a later date. Position 45-39.73N 121-54.03W USCG Northwest District Local Notice to Mariners 45/2026 General / Marine Construction (Excluding Bridges) / Facilities, Barriers, Manmade Reefs, Riprap, Jetties / Dikes Advanced American Construction will be constructing a new railroad bridge on the Washington side of the Columbia River near RM 168.2. at the confluence of the White Salmon River & Columbia River. Work includes heavy marine assets, critical lifts, and pile driving operations. The Derrick Barge AAC Millennium will be on station from 10 Nov 25 through 31 Dec 26. Working days are planned for Monday through Friday, 0700 to 1700. Onsite equipment will monitor VHF-FM channels 13 & 16 during working hours. Mariners are requested to reduce speed and avoid the work area. During non-working hours, the derrick barge will remain on station with steady white lights on all four corners. Please call Kristian Hellberg at (703) 409-1614 or email at [email protected] for more information. Position 45-43.70N 121-31.35W USCG Northwest District Local Notice to Mariners 45/2026 BOUNDARY PASS General / Threatened And Endangered Species Advisory (TESS Advisory) / Marine Wildlife Migration Effective 01 Jun (exact date TBC by ECHO team based on SRKW presence) to 30 Nov 2026, the Enhancing Cetacean Habitat and Observation (ECHO) Program voluntary ship slowdown through Haro Strait and Boundary Pass 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. This voluntary slowdown takes place between 48°24'22.78"N, 123°12'15.26"W, and 48°46'39.28"N 123°1'36.84"W. Speed transition zones are in place within the established traffic system at both approaches to the slowdown area. The north transition zone are those waters between north of Boat Pass, Saturna Island and Rosenfeld Rock and the south transition zone are those waters between buoy VH at the Victoria pilot station, and Sea Bird Point at the southeast corner of Discovery Island. There are also two optional slow down areas, one rounding turn point and the other between Turn point, Saturna Island and Alden Point, Patos Island. This initiative will remain in effect 24 hours per day until 23:59 PDT on 30 Nov 2026, depending on southern resident killer whale presence in the fall. 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 45/2026 BOUNDARY PASS General / Threatened And Endangered Species Advisory (TESS Advisory) / Marine Wildlife Migration Effective 15 June until 23:59hrs PST on 30 Nov 2026, the Enhancing Cetacean Habitat and Observation (ECHO) Program voluntary ship slowdown through Haro Strait and Boundary Pass 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. This voluntary slowdown takes place between 48°24'22.78"N, 123°12'15.26"W, and 48°46'39.28"N 123°1'36.84"W. Speed transition zones are in place within the established traffic system at both approaches to the slowdown area. The north transition zone are those waters between north of Boat Pass, Saturna Island and Rosenfeld Rock and the south transition zone are those waters between buoy VH at the Victoria pilot station, and Sea Bird Point at the southeast corner of Discovery Island. There are also two optional slow down areas, one rounding turn point and the other between Turn point, Saturna Island and Alden Point, Patos Island. This initiative will remain in effect 24 hours per day until 23:59 PDT on 30 Nov 2026, depending on southern resident killer whale presence in the fall. 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: ECHO Program’s 2026 voluntary slowdowns and route alteration for commercial ships | Vancouver Fraser Port Authority USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - CAPE HORN General / Miscellaneous Bergerson Construction, Inc. will commence pile driving operations between Prindle Dike Light 73 on the Columbia River in the vicinity of River Mile 134 (Latitude/Longitude: 45°34'57.35"N, 122° 9'29.93"W) down to Cape Horn Range Front Light (Latitude/Longitude: 45°34'4.75"N, 122°11'36.27"W) from November 9 through November 18, 2026, Monday through Friday, from 0700 to 1800 daily. A 60’ x 120’ crane barge and assistant vessel will be monitoring VHF-FM channel 17. 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 Clayton Solberg with Bergerson Construction, Inc. at (503) 325-7130. USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - CHETCO RIVER General / Marine Construction (Excluding Bridges) / Dredging The Port of Brookings Harbor will be conducting dredging operations inside Basin 1, Port of Brookings, OR from 01 Oct 2026 through 15 Feb 2027. Working hours will be 0800-1700 Monday through Saturday (No work on holidays). Disposal site will be ashore. Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution. Working vessels will be monitoring VHF-FM channels 13 and 16. For additional information, contact Gary Dehlinger at (541) 373-0280 or [email protected] or Travis Webster at 541-291-7380 or [email protected]. USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - CHINOOK CHANNEL General / Marine Construction (Excluding Bridges) / Dredging Port of Chinook will be conducting maintenance dredging for the Port of Chinook Marina from 02 November 2026 through 15 February 2027. Dredging activities will occur entirely within the Marina boat basin, 7 days a week. Disposal will be at the Chinook Marina Upland Placement site. Mariners are requested to transit at their slowest safe speed to minimize wake and proceed with caution. For additional information, contact Richard Wright, Port of Chinook Director at 360-214-8864. Position 46-16.22N 123-56.85W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - CHINOOK CHANNEL General / Marine Construction (Excluding Bridges) / Dredging HME Construction Inc will be performing clamshell dredging and dump scow disposal operations near Chinook Channel from 01 Nov – 01 Dec 2026, working 7 days a week 24 hours a day. Dredging will extend from the South of East Sand Island up to the entrance of Chinook harbor. Two separate dredge spoil placement sites will be located south of the Columbia River (46-14.96N 123-58.23W and 46-14.76N 123-58.46W). Vessels include Dredge Boat Sea Horse, 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. Position 46-16.02N 123-57.37W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA General / Hazards To Navigation / Obstructions COLUMBIA RIVER - HARRINGTON POINT TO CRIMS ISLAND - WELCH ISLAND – Log obstruction. Mariners are advised that a 30-foot log is fixed in position approximate 46° 12.258' N, 123° 23.392' W. Mariners are advised to exercise caution, keep appropriate distance, and maintain a sharp lookout when transiting the area. Should the log obstruction be removed or is found to be no longer present, mariners are asked to report this finding to the Sector Columbia River Command Center via VHF-FM Channel 16 or telephone at 1-(833) PNW-USCG (769-8724). Position 46-12.25N 123-23.40W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA General / LAA / RNA / Safety Zone * City of Richland Lighted Boat Parade Fireworks * December 5, 2026; 7:00 p.m. - 9:30 p.m. Fireworks display launched from land over approximate location 46°16′29″ N, 119°16′10″ W. A safety zone, which is needed to protect personnel, vessels, and the marine environment in the navigable waters, will be covering all navigable waters within a 450-yard radius of the launch site and will be in effect during this time. All vessel operators who desire to enter the safety zone must obtain permission from the Captain of the Port or Designated Representative by contacting either the on-scene patrol craft on VHF Ch 13 or Ch 16 or the Coast Guard Sector Columbia River Command Center via telephone at 1-(833) 769-8724. Position 46-16.48N 119-16.17W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA General / Miscellaneous The causeway that connects Bateman Island to Richland, Washington, where the Yakima River enters the Columbia River, has been removed to restore the original flow of the river. USACE is required to monitor turbidity levels at two locations in the Yakima River; the first, approximately one mile upstream from the mouth, in approximate position 46-15.26N 119-15.24W, and a second at the southern point of Bateman Island, approximately 46-14.35N 119-13.35W. The water monitoring equipment will be deployed using anchored buoys which will be yellow with a flashing yellow light every three seconds (Fl Y 3s). For more information contact Ryan Ashcraft at the USACE Walla Walla office at (509) 704-0755. Position 46-14.35N 119-13.38W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA General / Miscellaneous The causeway that connects Bateman Island to Richland, Washington, where the Yakima River enters the Columbia River, has been removed to restore the original flow of the river. USACE is required to monitor turbidity levels at two locations in the Yakima River; the first, approximately one mile upstream from the mouth, in approximate position 46-15.26N 119-15.24W, and a second at the southern point of Bateman Island, approximately 46-14.35N 119-13.35W. The water monitoring equipment will be deployed using anchored buoys which will be yellow with a flashing yellow light every three seconds (Fl Y 3s). For more information contact Ryan Ashcraft at the USACE Walla Walla office at (509) 704-0755. Position 46-15.27N 119-15.32W USCG Northwest District Local Notice to Mariners 45/2026 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 15+90) from 19 Oct 2026 through 20 Nov 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. All pipeline is temporary and will have danger buoys and lights marking them. 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. Location Information: Placement: East Sand Island Submerged pipe, mid-point: 46-15.61N 123-58.97W; Offshore end: 46-15.51N 123-59.16W. Position 46-15.60N 123-58.68W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Bridges / Repairs, Painting, Or Fender Replacement WSDOT and Garco Construction will be replacing the deck/roadway on the Vantage I-90 Bridge near Vantage, WA, across the Columbia River at mile 420.0. Construction work will be from March 2, 2026, through November 1, 2027. The work schedule is M-F 0700 – 1730 and may involve evening work. Containment will be installed reducing the main span vertical clearance from 73 feet above high water to 63 feet above high water. The secondary spans will have containment installed as well and the vertical clearances will vary in height above high water. Mariners be aware of fall hazards. Cautionary signs and amber flashing lights will be used to warn mariners of the construction and containment. For more information contact John Rosgen at (509) 254-1026 or [email protected]. Position 46-56.53N 119-58.38W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR 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 and ending at Hayden Bay Marina from 7:00 p.m. to 9:00 p.m. on December 3rd, 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 45-36.17N 122-37.27W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Marine Events / Boat Parade A ship parade will be occurring along the North Portland Harbor, Portland, OR on the Columbia River starting and ending at the M. James Gleason Boat Ramp from 7:00 p.m. to 9:00 p.m. on December 4th, 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 45-36.18N 122-37.30W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Marine Events / Boat Parade A ship parade will be occurring east of Lady Island in the vicinity of the Washougal Waterfront Park, Washougal, WA on the Columbia River starting from 6:00 p.m. to 9:00 p.m. on December 5th, 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 45-34.57N 122-22.98W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Marine Events / Boat Parade A ship parade will be occurring within the Tri-Cities WA area on the Columbia River, starting under the cable bridge in Kennewick, WA, traveling upriver to Howard Amon Park in Richland, WA, and returning down river along the same route. The event will take place December 4th and 5th, 2026, from 6:00 p.m. to 9:00 p.m. each evening. This parade will involve up to 20 participants and mariners are requested to transit the area with caution. For additional details, contact Michael Rhodes at 509-554-6763. Position 46-13.07N 119-05.88W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR 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 7th, 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 45-36.20N 122-36.98W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Marine Events / Boat Parade A ship parade will be occurring in the vicinity of the I-205 bridge beginning at the M. James Gleason Boat Ramp and extending from Wintler Park to just east of McCuddy’s Steamboat Landing Marina, Vancouver, WA on the Columbia River from 7:00 p.m. to 9:00 p.m. on December 8th, 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 45-36.17N 122-37.00W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Marine Events / Boat Parade A ship parade will be occurring along the North Portland Harbor, Portland, OR on the Columbia River starting at the M. James Gleason Boat Ramp from 7:00 p.m. to 9:00 p.m. on December 9th, 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 122-37.28W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR 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 and ending at Hayden Bay Marina from 7:00 p.m. to 9:00 p.m. on December 15th, 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 45-36.37N 122-40.55W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Marine Events / Boat Parade A ship parade will be occurring along the North Portland Harbor, Portland, OR on the Columbia River starting from the M. James Gleason Boat Ramp and ending at Portland Yacht Club from 7:00 p.m. to 9:00 p.m. on December 15th, 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 45-36.38N 122-40.67W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR 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 and ending at Hayden Bay Marina from 7:00 p.m. to 9:00 p.m. on December 16th, 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 45-36.83N 122-40.03W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR 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 and ending at Hayden Bay Marina from 7:00 p.m. to 9:00 p.m. on December 18th, 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 45-36.70N 122-39.68W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR 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 and ending at Hayden Bay Marina 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 45-36.68N 122-39.62W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Marine Events / Boat Parade A ship parade will be occurring between the Columbia Riverfront RV Park, Woodland, WA and the St. Helens Public Dock, St. Helens, OR on the Columbia River from 6:00 p.m. to 8:00 p.m. on December 12th, 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 45-54.00N 122-48.20W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA RIVER General / Marine Events / Boat Parade A ship parade will be occurring in the vicinity of the I-205 bridge beginning at the M. James Gleason Boat Ramp and extending from Wintler Park to just east of McCuddy’s Steamboat Landing Marina, Vancouver, WA on the Columbia River from 7:00 p.m. to 9:00 p.m. on December 17th, 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 45-36.18N 122-34.65W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - DEPOE BAY General / Bridges / Rehabilitation Oregon Department of Transportation (ODOT) and Carter Construction will be completing a cathodic protection project on the US-101 Bridge (BRDG UID 29514) (LLNR 9627) across the entrance to Depoe Bay, OR. The planned start time/date is 0600 on 5 Jan 2026 through 1800 on 18 Dec 2026. The start and end dates may change due to weather conditions. The work requires the use of containment via scaffolding, that will reduce the vertical navigation clearance of the subject bridge from 46 feet to 41 feet at high tide for the center horizontal 38ft above the main navigation channel. There will also be scaffolding that will hang about 19’ below the bottom of the bridge on the north and south side of the bridge arch of the main navigation channel and will remain in place until maintenance is completed until November / December. The containment will be marked with amber caution lighting and will not obstruct any navigational aids. For more information contact Markus Schaaf at [email protected]. Position 44-48.58N 124-03.70W USCG Northwest District Local Notice to Mariners 45/2026 NAVAREA XII - District 13, Oceanic boundary to EEZ / Space Operations / Hazardous Warning Area / Commercial (Hazardous) Hazardous operations, including the trunk hazard ascending, will be conducted for SpaceX CRS- 35 reentry with a splashdown in the Pacific Ocean from 180700Z NOV 2026 to 280355Z NOV 2026 Hazardous operation areas are bounded by the following coordinates: Trunk Hazard Area: 38-19.00N 125-59.00W 38-57.00N 128-05.00W 41-11.00N 132-05.00W 44-07.00N 138-25.00W 45-30.00N 137-21.00W 42-30.00N 130-55.00W 40-13.00N 126-53.00W 38-44.00N 125-34.00W 38-19.00N 125-59.00W (TO BEGINNING) The identified locations above are designated a hazardous warning area(s) for space vehicle reentry. A space vehicle may reenter within this/these area(s) between the dates and times listed. The U.S. Coast guard is establishing this/these hazardous warning area(s) to protect vessels and waterway users from the potential hazards created by reentry vehicle splashdowns and recovery operations. The U.S. Coast guard is providing this notice to advise mariners of this/these hazardous area(s) which may impact navigation interests. Navigations hazards from space capsule reentry activities may include free falling debris and/or descending vehicles or vehicle components under various means of control. Mariners are urged to avoid the reentry sites during reentry windows as detailed above. 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 45/2026 NAVAREA XII - District 13, Oceanic boundary to EEZ / Space Operations / Hazardous Warning Area / Commercial (Hazardous) Hazardous operations, including the trunk hazard ascending, will be conducted for SpaceX CRS- 35 reentry with a splashdown in the Pacific Ocean from 180700Z NOV 2026 to 280350Z NOV 2026 Hazardous operation areas are bounded by the following coordinates: Trunk Hazard Area: 37-42.00N 124-28.00W 38-22.00N 126-32.00W 40-39.00N 130-29.00W 43-38.00N 136-41.00W 45-00.00N 135-36.00W 41-57.00N 129-19.00W 39-37.00N 125-20.00W 38-08.00N 124-03.00W 37-42.00N 124-28.00W (TO BEGINNING) The identified locations above are designated a hazardous warning area(s) for space vehicle reentry. A space vehicle may reenter within this/these area(s) between the dates and times listed. The U.S. Coast guard is establishing this/these hazardous warning area(s) to protect vessels and waterway users from the potential hazards created by reentry vehicle splashdowns and recovery operations. The U.S. Coast guard is providing this notice to advise mariners of this/these hazardous area(s) which may impact navigation interests. Navigations hazards from space capsule reentry activities may include free falling debris and/or descending vehicles or vehicle components under various means of control. Mariners are urged to avoid the reentry sites during reentry windows as detailed above. 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 45/2026 NAVAREA XII - District 13, Oceanic boundary to EEZ / Space Operations / Hazardous Warning Area / Commercial (Hazardous) Hazardous operations, including the trunk hazard ascending, will be conducted for SpaceX CRS- 35 reentry with a splashdown in the Pacific Ocean from 180700Z NOV 2026 to 280355Z NOV 2026. Hazardous operation areas are bounded by the following coordinates: Trunk Hazard Area: 37-20.00N 124-21.00W 38-00.00N 126-25.00W 40-18.00N 130-19.00W 43-20.00N 136-27.00W 44-42.00N 135-21.00W 41-36.00N 129-08.00W 39-15.00N 125-12.00W 37-45.00N 123-56.00W 37-20.00N 124-21.00W (TO BEGINNING) The identified locations above are designated a hazardous warning area(s) for space vehicle reentry. A space vehicle may reenter within this/these area(s) between the dates and times listed. The U.S. Coast guard is establishing this/these hazardous warning area(s) to protect vessels and waterway users from the potential hazards created by reentry vehicle splashdowns and recovery operations. The U.S. Coast guard is providing this notice to advise mariners of this/these hazardous area(s) which may impact navigation interests. Navigations hazards from space capsule reentry activities may include free falling debris and/or descending vehicles or vehicle components under various means of control. Mariners are urged to avoid the reentry sites during reentry windows as detailed above. 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 45/2026 ELLIOTT BAY - DUWAMISH WATERWAY EAST General / Marine Construction (Excluding Bridges) / Dredging Pacific Pile and Marine will be conducting dredging operations in the Lower Duwamish Waterway Upper Reach Remedial Action (RM 3 – RM 5) from 01 Oct 2026 – 15 Feb 2027. Standard working hours are Mon-Sat 0600-1630. Working vessels include Construction barges, tugboats, survey boats and work skiffs. All barges will be lite with white all-round lights at each corner. Cautionary Buoys (3.6 ft height, white with black lettering and orange stripes) will designate working area. All vessels will be maintained and monitoring VHF Channel 16. Mariners are urged to transit at their slowest safe speed to minimize wake and keep a 100 ft district from working vessels. For additional information, please contact the Contract Representative Andrea Harwood and Ben Nguyen at 206-331-3873 or [email protected] or [email protected] USCG Northwest District Local Notice to Mariners 45/2026 PUGET SOUND - EAST PASSAGE General / Marine Construction (Excluding Bridges) / Dredging American Construction Company will be conducting dredging operations in the Duwamish River, WA (STA 242+00 to 275+56) from 07 Dec 2026 through 01 Mar 2027. Work includes maintenance dredging of approximately 140,000 CY, operating 24-hours per day, seven days a week until completion. Working vessels include a clamshell dredge, M/V Mukilteo to dredge and M/V LUMMI to load the split-hull scows. The scows will be towed to the DNR Elliott Bay Disposal site. Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made with the Tug Captain. Working vessels will be monitoring VHF-FM channels 13 and 16. For additional information, contact Aaron McMahill at (253) 350-1670, [email protected]. USCG Northwest District Local Notice to Mariners 45/2026 PUGET SOUND - ELLIOTT BAY General / Miscellaneous The Port of Seattle will deploy hydrophones in Elliott Bay on 16 – 17 Jul 2025 for the purpose of collecting ambient underwater noise data. The hydrophones will be fully submerged and rest on the seafloor, and will be connected to shore stations via an ethernet cable. They will remain in place for two years, through 2027. One location is near Jack Block Park in approximate position 47-35.16N 122-22.10W. The hydrophones will be deployed using Seattle Police boats. For more information on this project, contact Danielle Butsick at (206)-549-2945 or [email protected]. Position 47-35.15N 122-22.10W USCG Northwest District Local Notice to Mariners 45/2026 PUGET SOUND - ELLIOTT BAY General / Miscellaneous The Port of Seattle will deploy hydrophones in Elliott Bay on 16 – 17 Jul 2025 for the purpose of collecting ambient underwater noise data. The hydrophones will be fully submerged and rest on the seafloor, and will be connected to shore stations via an ethernet cable. They will remain in place for two years, through 2027. One location is near the Seattle Aquarium in approximate position 47-36.43N 122-20.64W. The hydrophones will be deployed using Seattle Police boats. For more information on this project, contact Danielle Butsick at (206)-549-2945 or [email protected]. Position 47-36.43N 122-20.65W USCG Northwest District Local Notice to Mariners 45/2026 PUGET SOUND - ELLIOTT BAY General / Miscellaneous MUCKLESHOOT INDIAN TRIBE NET FISHERIES - Elliott Bay & Green/Duwamish River (Commercial) Will OPEN 6:00AM Friday May 29th and remain open until further notice. Gillnets only, 5 inch minimum mesh. Boats in the bay are allowed one net up to 1800 feet max net length. Fishers in the river are allowed three nets of up to 330 feet max net length. The river remains closed upstream of the Interurban Trail footbridge which is just upstream of the HWY167 bridge. The bay remains closed outside of a line from Pier 91 to the light at Duwamish Head. USCG Northwest District Local Notice to Mariners 45/2026 GUEMES CHANNEL General / Marine Construction (Excluding Bridges) / Dredging Duwamish Services will be conducting dredging operations near Guemes Channel, Anacortes at the Anchor Cove Marina from 01 - 17 Nov 2026. Dredge operations will occur during daylight hours, and the dredge sediment will be transported during nighttime hours to the Rosario Strait Open Water Disposal 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 Forrest Carpenter, Project Manager at (541) 441-9898 or email www.deainc.com USCG Northwest District Local Notice to Mariners 45/2026 ADMIRALTY INLET - HOOD CANAL General / Miscellaneous The University of Washington, in coordination with the US Navy, has deployed two environmental research buoys in approximate positions (North Buoy 47-41.53N 122-51.90W) (South Buoy 47-40.60N 122-48.60W) in Hood Canal at the entrance to Dabob Bay. These buoys are yellow in color and lighted with a yellow flashing light, FL Y (5) 20s. These buoys will remain in place for one year until 01 Sep 2027. For more information on this buoy, contact the Navy Range Control at (360) 396-2313. Position 47-39.90N 122-52.43W USCG Northwest District Local Notice to Mariners 45/2026 LAKE CELILO General / Bridges The Celilo rail bridge green open span light is extinguished. Position 45-38.95N 120-58.90W USCG Northwest District Local Notice to Mariners 45/2026 LAKE UNION General / Bridges WASHINGTON – LAKE WASHINGTON SHIP CANAL – UNION BAY REACH – Bridge deviation The Coast Guard has approved a temporary deviation for the operating schedule that governs the Fremont Bridge (BRIG UID 31179), mile 2.6, and the University Bridge (BRIG UID 31182), mile 4.3, both crossing the Lake Washington Ship Canal in Seattle, WA. The deviation will accommodate the Seattle Marathon running event. To facilitate this event, the draws of the subject bridges will be authorized to not open to marine vessels. The closure will be; Fremont Bridge from 0800 to 1300 on November 29, 2026, and the University Bridge from 0800 – 1100 on November 29, 2026. Vessels that do not require bridge openings may continue to transit beneath these bridges during the closure period. The draws will be required to open, if needed, for vessels engaged in emergency response operations during this closure period. For more information contact Kit Loo at (206) 684-3669 or [email protected]. Position 47-38.87N 122-20.98W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - LAKE WALLULA General / Miscellaneous McNary Dam (RM 292) on the Columbia River will be having slower than normal lockage openings beginning 05 November 2026 until further notice due to a broken hydraulic line and issues with the valve hydraulic power unit. Upstream lockage's will require an additional 15-20 minutes to complete. For additional information, contact McNary Chief Operator at 541-922-2231, Call Sign: WUJ41 or NWW Operations Division at 509-527-7364. Position 45-55.72N 119-17.68W USCG Northwest District Local Notice to Mariners 45/2026 UNION BAY REACH - LAKE WASHINGTON General / Bridges / Temp Deviation WASHINGTON – LAKE WASHINGTON SHIP CANAL – Montlake Bridge deviation notice The Coast Guard intends to approve 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, 0930 to 1300 and 1530 to 1800; - 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 will allow 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 45/2026 CRIMS ISLAND TO ST HELENS - LONGVIEW General / Marine Construction (Excluding Bridges) / Dredging HME will be performing dredging operations near Port of Longview on the Columbia River (RM 65+52 through 67+00 and RM 58) from 07 – 31 Dec 2027, working 7 days a week 24 hours a day. Vessels include Tug “Terilyn” and a dump scow “Robert L” and “WJ Marston”, monitoring VHF Channels 13 and 16. 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 USACE Contracting Officers Representative is Nathan Miller, 360-899-8223. USCG Northwest District Local Notice to Mariners 45/2026 CRIMS ISLAND TO ST HELENS - LONGVIEW General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS may be conducting dredging activities in the Columbia River, Slaughter Bar/Lower Dobelbower Bar (RM 63+20 to RM 67+40) from 03 – 10 Nov 2026. Disposal will be at RM 70 OR side and RM 61 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 45/2026 CRIMS ISLAND TO ST HELENS - LONGVIEW General / Marine Construction (Excluding Bridges) / Dredging Dredge Oregon will be conducting dredging activities near Lower Dobelbower Bar on the Columbia River, (RM 69+00 to RM 70+00), between 26 Oct – 23 Nov 2026. Dredging operations will occur on the Oregon side outside of the channel near Howard Island. The Dredge Oregon, along with workboats Clackamas, Ivanoff, and Cowlitz will be monitoring VHF Channel 13 and 16. Mariners are requested to 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. Dredge personnel may be reached by phone at (503) 369-1505 or (503) 789-7238. Position 46-05.32N 122-55.22W USCG Northwest District Local Notice to Mariners 45/2026 CRIMS ISLAND TO ST HELENS - LONGVIEW General / Marine Construction (Excluding Bridges) / Dredging Pacific Rock and Dredge will be conducting dredging and disposal operations rear the Old Mouth Cowlitz Channel, Longview, WA (RM 67.5) from 16 – 19 Nov 2026, operating 24-hrs, 7 days/week. Disposal site will occur near Columbia RM 56 or 73. Dredge vessel Heidi Renee, Dump scow Sand Island and tug James T will on-scene, monitoring VHF-FM channels 16, 13 and 72. Mariners are requested to use extreme caution in work areas and 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, contact Darrell Jamieson at (360) 984-9178 or email at [email protected]. Position 46-05.57N 122-55.23W USCG Northwest District Local Notice to Mariners 45/2026 CRIMS ISLAND TO ST HELENS - LONGVIEW 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 the Mouth of the Cowlitz River from 12 November 2026 – 31 January 2027. Dredging operations will occur near the navigational channel with placement on Howard Island. Dredge Oregon, along with workboats Clackamas, Ivanhoff, and Cowlitz will be monitoring VHF-FM Channels 13 and 16. Mariners are requested to contact the dredge to make passing arrangements and proceed with caution at their slowest safe speed to minimize wakes. For additional information, contact dredge personnel at (503) 369-1505 or (503) 789-7238. Position 46-05.60N 122-55.17W USCG Northwest District Local Notice to Mariners 45/2026 LOWER MONUMENTAL General / Bridges The Coast Guard intends to approve a temporary bridge deviation from the operating schedule that governs the Camas Prairie Railroad Bridge (BRDG UID 30149) across the Clearwater River at mile 0.6 in Lewiston, ID. This deviation will support mechanical repairs from 0600 on 07 December 2026 to 1800 on 8 December 2026. The Camas Prairie Bridge provides 7 feet of vertical clearance in the closed-to-navigation position at high water. The subject bridge will not be able to open for emergency vessels responding to emergencies. No alternate route is available for vessels to use during this part of the waterway. If any mariner cannot support this deviation request, please submit comments by 25 November 2026 at [email protected]. For more information on this event contact Mike McDermott at 563-581-3250 or email [email protected]. Position 46-25.55N 117-01.57W USCG Northwest District Local Notice to Mariners 45/2026 LOWER MONUMENTAL General / Bridges The Coast Guard intends to approve a temporary bridge deviation from the operating schedule that governs the Camas Prairie Railroad Bridge (BRDG UID 30149) across the Clearwater River at mile 0.6 in Lewiston, ID. This deviation will support mechanical repairs from 0600 on 14 December 2026 to 1800 on 15 December 2026. The Camas Prairie Bridge provides 7 feet of vertical clearance in the closed-to-navigation position at high water. The subject bridge will not be able to open for emergency vessels responding to emergencies. No alternate route is available for vessels to use during this part of the waterway. If any mariner cannot support this deviation request, please submit comments by 25 November 2026 at [email protected]. For more information on this event contact Mike McDermott at 563-581-3250 or email [email protected]. Position 46-25.55N 117-01.57W USCG Northwest District Local Notice to Mariners 45/2026 CRIMS ISLAND TO ST HELENS - MARTIN ISLAND General / Marine Construction (Excluding Bridges) / Dredging The M/V YAQUINA may be conducting dredging activities in the Columbia River, Eureka Bar/Gull Island (RM 78+50 to RM 81+00) from 05 – 12 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. USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - MILLER SANDS General / Miscellaneous Orion Marine Group (OMG) will be conducting pile driving and enrockment activities near Columbia River Marker Pile #23 and #24 from 23 Nov 2026 – 28 Feb 2027. ABS barges Ellis Island and San Clemente will be onsite and can be hailed on VHF channel 72. Barges may be onsite overnight and will be marked with all-round white lights. 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 Emeri Wilson at 503-994-6157 or email [email protected]. Position 46-15.88N 123-39.85W USCG Northwest District Local Notice to Mariners 45/2026 ST HELENS - MULTNOMAH CHANNEL General / Marine Events / Boat Parade A ship parade will be occurring between J. J. Collins Memorial Park, Scappoose, OR and the Wapato Bridge, Portland, OR on the Multnomah Channel from 4:30 p.m. to 8:00 p.m. on December 13th, 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 45-45.75N 122-49.03W USCG Northwest District Local Notice to Mariners 45/2026 SOUTH WILLAPA BAY - NAHCOTTA CHANNEL General / Marine Construction (Excluding Bridges) / Dredging Tokeland Dredging will be conducting dredging and disposal operations in Nahcotta Mooring Basin, South Willapa Bay, WA from 01 Oct – 15 Nov 2026. Dredging and disposal operations will be 24 hours per day, 7 days per week. Tokeland Dredge will monitor VHF channel 16 and use VHF channel 72 for operations. Disposal sites will occur at the South Channel Placement Site located in Willapa Bay. 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 Gabija Karisas at (206) - 764-3413 or email [email protected] USCG Northwest District Local Notice to Mariners 45/2026 NAVAREA XII General / Marine Construction (Excluding Bridges) / Dredging Cape George Colony Club Marina will be conducting dredging activities in Discovery Bay, Cape George Colony Club Marina Entrance, WA from 15 July 2026 through 15 January 2027. A (8’4” by 12’6”) marina barge with suction dredging onboard will be on station and will monitoring VHF-FM channels 13 & 16 during working hours. Mariners are requested to reduce speed and avoid working area. For additional information or concerned traffic, contact the dredge operator, Mike Thorwick at 360-643-9063 or Colleen Brady at 206-932-7300. USCG Northwest District Local Notice to Mariners 45/2026 NORTH CHANNEL General / Bridges Multiple lights are extinguished. Position 46-12.92N 123-51.72W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - NORTH PORTLAND HARBOR General / Marine Construction (Excluding Bridges) / Dredging HME will be performing dredging operations near CBC East Barge Slip, Columbia River (RM 108) from 15 Nov – 01 Dec 2026, working 7 days a week from 0600-1800. Dredging side at 45-36.67N 122-36.20W. Dredge spoils will be transported downstream to (RM 109.6). Vessels include Tug “Husky” and support Tug “St. Helens”, a dump scow “Sea Vulture” and one split-hull dump scow. Vessels will be monitoring VHF Channels 13 and 16, with working channel VHF 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. Position 45-36.67N 122-38.57W USCG Northwest District Local Notice to Mariners 45/2026 MILLER SANDS - PILLAR ROCK General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS may be conducting dredging activities in the Columbia River, Pillar Rock/Brookfield-Welch Island (RM 27+50 to RM 32+23) from 03 – 10 Nov 2026. Disposal will be at RM 28 OR 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 45/2026 General / Naval Activity / Naval Testing (Surface / Underwater) The Naval Undersea Warfare Center (NUWC) at Keyport, WA is continuing operations in vicinity of NUWC between University Point, the Brownsville Marina and Keyport through 23 Dec 2026. Operations will normally be conducted Monday through Friday during daylight hours. Operations will involve semisubmersible and submersible vehicles escorted by a small naval craft with a flashing red light. The small craft will monitor VHF-FM channels 12 and 16. The call sign for the small craft will be “Keyport Range Control”. All craft transiting the area are requested to exercise caution and maintain a sharp lookout for possible semi-submerged vehicles while the range is in operation. Questions can be directed to Keyport Range Control on VHF-FM channels 12 and 16 or by contacting the Pacific Northwest Range Management and Ops Division, Range Control Branch, at (360) 396-2313. USCG Northwest District Local Notice to Mariners 45/2026 PUGET SOUND - POSSESSION SOUND General / Marine Events / Regatta (Race) 26 SEP -21 NOV 2026, 1200-1530 biweekly. Annual series of sailing regattas in Possession Sound beginning near Snohomish River Light 5, proceeding counterclockwise around Possession Sound via Tulalip Bay Light 2, Camano Head Light 1, South along Whidbey Island to Possession Point Lighted Bell Buoy 1, and North along the shore of Mukilteo back to start. USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - PUGET ISLAND General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS may be conducting dredging activities in the Columbia River, Puget Island Bar (RM 37+35 to RM 39+10) from 05 – 10 Nov 2026. Disposal will be at (RM 28 OR 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 46-12.45N 123-25.58W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR PUGET SOUND, SUBMERGED LAND ACT (SLA) - QUILLAYUTE RIVER General / Hazards To Navigation / Obstructions There is a large, submerged log stuck in Quillayute River navigational channel approximately 75-100 yards downriver (southwest) of the Quileute Marina entrance. The log may be marked with an orange fender/float. At lower water levels, a portion of the log is visible. Mariners should use extreme caution. Position 47-54.58N 124-38.35W USCG Northwest District Local Notice to Mariners 45/2026 SALMONBAY General / Bridges WASHINGTON – LAKE WASHINGTON SHIP CANAL – SHILSHOLE BAY – Bridge notice (Revised) Burlington Northern Santa Fe Railway Company (BNSF) will be performing heavy rail maintenance/construction on the Salmon Bay Railroad Bridge (BRDG UID 31177) (AKA BNSF Bridge 6.3), mile 0.1, across the Lake Washington Ship Canal in Seattle, Washington. The construction work requires the draw of the subject bridge to be closed from 02 November 2026 to 25 November 2026. This draw closure corresponds with the USACE’s large Hiram M. Chittenden Lock closure. The Coast Guard has approved a temporary deviation to the operating schedule that governs the Salmon Bay Railroad Bridge from 0600 on 02 November 2026 to 1600 on 25 November 2026. The draw will be able to open from 8 A.M. to 8 P.M on 14 - 18 November 2026, if a 24-hour notice is given to the bridge operator. The subject bridge provides 43 feet of vertical clearance in the closed-to-navigation position at mean higher high water. Vessels which do not require a bridge opening may continue to transit beneath the bridge during this closure period. This construction requires barges in the navigation channel during the same time as USACE’s annual lock closure and maintenance to minimize impacts. A crane and material barge will be positioned in the water to service the work of erecting temporary trusses that are required to execute the counterweight change out. During this timeframe, access on the southern channel to the small locks will be in operation during the large lock closure. A construction zone will be established for mariners to navigate around at minimum safe speed. The subject bridge will not be able to open for emergencies, and there is no immediate alternate route for vessels to pass. For more information on this draw bridge closure contact Travis Woodley at [email protected] or (682) 978-3311. Position 47-40.02N 122-24.13W USCG Northwest District Local Notice to Mariners 45/2026 SHILSHOLE BAY - SALMONBAY General / Miscellaneous The Hiram M. Chittenden Locks will close the large lock chamber to conduct annual maintenance from 0600 on 02 Nov – 1700 on 20 Nov 2026. Marine traffic will continue to use the Auxiliary (small) lock chamber. Further information is posted on USACE website: https://www.nws.usace.army.mil/Missions/Civil-Works/Locks-and-Dams/Chittenden-Locks/Closures/. Mariners can also call the Lockmaster at (206) 297-9745. Position 47-39.93N 122-23.78W USCG Northwest District Local Notice to Mariners 45/2026 POSSESSION SOUND - SARATOGA PASSAGE General / Naval Activity / Naval Testing (Surface / Underwater) The Naval Research Lab will be conducting a Sofar Wave buoy installation in Saratoga Pass from 22 Jul through 03 Aug 2016. These buoys will be in place until November 2026. There will be two sets of two buoys each, comprising of one anchored red polyball buoy, and one yellow spotter buoy tethered to the red polyball buoy. The hazard is a 5m tether line horizontally near surface from the Spotter to the red polyball buoy, and vertical mooring line from the red polyball to a clump weight anchor on the seafloor at the below locations. See attached diagram. Each set of buoys are in approximate positions 48°13'10.21"N, 122°34'2.09"W and 48°15'9.99"N, 122°34'1.05"W. The R/V Michael Uhl and R/V Surveyor will be on station during the deployment and will be monitoring VHF-FM Channel 16. For additional information, contact NRL Stennis at 228-688-5825. Position 48-13.17N 122-34.02W USCG Northwest District Local Notice to Mariners 45/2026 DISTRICT 13, OCEANIC BOUNDARY TO EEZ - SECTOR COLUMBIA RIVER, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Offshore Westport, WA Approximate position: 46-45’36” N 124-35’24” W Sunken 35’ fishing vessel. Mariners are requested to transit the area with caution. For more details or comments contact Sector Columbia River Waterways Management at 503-572-3524 or email [email protected]. Position 46-45.50N 124-32.48W USCG Northwest District Local Notice to Mariners 45/2026 DISTRICT 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 17 – 20 Nov 2026. Operations include the launch and recovery of various unmanned aircraft and flight testing in several locations within area W-570 including an operational area approximately 15 – 30 nautical miles west of Tillamook, 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 124-33.53W USCG Northwest District Local Notice to Mariners 45/2026 DISTRICT 13, OCEANIC BOUNDARY TO EEZ - SECTOR COLUMBIA RIVER, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Naval Activity / Naval Gunnery Exercises LIVE FIRE EXERCISES WILL BE CONDUCTED IN OPERATING AREAS W-237- A, C, D, F AND G, CENTERED IN APPROXIMATE POSITION 47-00.00N 126-15.00W, FROM 1000 UNTIL 1400 LOCAL FROM 16 – 20 NOV 26. VESSEL TRAFFIC IN THE VICINITY ARE REQUESTED TO MAINTAIN A 5 NM DISTANCE AND TO CONTACT VAQ 134 ON VHF-FM CHANNELS 16 OR 13. USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, TERRITORIAL SEA - SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) General / Marine Construction (Excluding Bridges) / Boring and Core Samples TYPE OF WORK: Marine dive operations at each of six lat-lon coordinates, corresponding to the horizontal directional drill (HDD) exit points of six (6) subterranean conduits for the future housing of up to six buried fiber-optic telecommunications cables. The HDD equipment staging and drilling operations will take place from a single onshore location in Grays Harbor County. Marine activity will be limited to dive operations. LOCATION WHERE WORK WILL BE DONE: Outer Pacific coast of Washington State south of Westport, Grays Harbor County, at six points approximately 0.75 nautical miles offshore Cohassett Beach. LAT/LONG OF MARINE OPERATIONS: (Degrees, Minutes, Seconds – Coordinates in WGS84) Position 1. N46 52 28.3607; W124 08 22.0226 Position 2. N46 52 26.7419; W124 08 22.0186 Position 3. N46 52 25.1255; W124 08 21.8943 Position 4. N46 52 23.5069; W124 08 21.8440 Position 5. N46 52 21.8924; W124 08 21.6716 Position 6. N46 52 20.2860; W124 08 21.3807 CHART NUMBERS: US4WA1EE; US3WA1DE BEGINNING/ENDING DATES: October 15 2026 – February 15 2027 HOURS OF OPERATION: Daylight hours only. Dive operations to be conducted approximately 12 days total during the operational period between October 15 2026 – February 15 2027. EQUIPMENT ON SCENE: Dive support vessel R/V Zephyr with anchor spread. RADIO FREQUENCY VESSEL CAN BE CONTACTED ON: Monitoring VHF Channels 16 and 19. PASSING ARRANGEMENTS/SAFE NAVIGATION DISTANCE: Mariners are requested to keep a minimum ½ nautical mile distance from the dive vessel. To ensure diver safety, any trolled, drift or fixed gear such as pots/traps is requested to remain clear of the dive vessel by a distance of ½ nautical mile. For additional information, please contact: Wolfgang Rain at 206-427-6553 /[email protected] Captain Ron Micjan at 503-632-5553 /[email protected] USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, TERRITORIAL SEA - SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) General / Miscellaneous Sea Risk Solutions LLC on behalf of The H.D.D. Company will be conducting marine dive operations off the outer Pacific Coast of Washington, near Westport, Grays Harbor County and Cohassett from 15 Oct 26 – 15 Feb 27. Marine dive operations will be during daylight hours only. R/V Zephyr will be the on-scene dive support vessel, monitoring channels VHF Channels 16 and 19. Mariners are requested to keep a minimum 0.5 NM distance from the dive vessel and proceed with caution. For additional information, contact Captain Ron Micjan at 503-632-5553 or [email protected] LAT/LONG OF MARINE OPERATIONS: Position 1. 46 52 28.3607 N; 124 08 22.0226 W Position 2. 46 52 26.7419 N; 124 08 22.0186 W Position 3. 46 52 25.1255 N; 124 08 21.8943 W Position 4. 46 52 23.5069 N; 124 08 21.8440 W Position 5. 46 52 21.8924 N; 124 08 21.6716 W Position 6. 46 52 20.2860 N; 124 08 21.3807 W Position 46-52.42N 124-08.37W USCG Northwest District Local Notice to Mariners 45/2026 General / Miscellaneous PacWave has deployed and continues to maintain site monitoring equipment throughout the PacWave North wave energy test site, located near Newport, Oregon, approximately 2 nautical miles WNW of Yaquina Head. This equipment supports ongoing environmental monitoring, site characterization, and test site operations. Some of the monitoring buoys are low profile and may be difficult to see in elevated sea states. Surface buoys are deployed as a single-point moorings, have yellow hulls, and are lighted. Mariners should be aware that subsurface equipment and mooring components may also be present. Mariners are requested to avoid the PacWave North test site if possible and to use caution when navigating or operating in or near the area. The test site corner boundaries are as follows: NW (44-41.868 N, 124-08.772 W) NE (44-41.910 N, 124-07.368 W) SE (44-40.914 N, 124-07.308 W) SW (44-40.866 N, 124-08.706 W) Buoys are located at: FLOATr (44-41.832 N, 124-08.722 W) Spotter (44-41.832 N, 124-08.722 W) For additional information, contact [email protected] or 541-737-9023. If there is an emergency or concerns regarding this equipment, please call our 24/7 Watch Desk at 541-819-4096. USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, EXCLUSIVE ECONOMIC ZONE (EEZ) - SECTOR COLUMBIA RIVER, TERRITORIAL SEA General / Miscellaneous PacWave continues to maintain a network of site monitoring equipment, seafloor instrumentation, and subsea cable infrastructure throughout the PacWave South wave energy test site, approximately 7 nautical miles WSW of the Yaquina Bay Entrance. Some of the monitoring buoys are low profile and may be difficult to see in elevated sea states. All buoys have a yellow hull, are lighted with a flashing amber light, and are deployed as single-point moorings. PacWave has also installed four long-term surface marker buoys that visually delineate the corners of the test site: NW (44°34.9988'N, 124°14.4998'W), NE (44°35.0465'N, 124°13.1008'W), SE (44°33.0437'N, 124°12.9700'W), and SW (44°33.0000'N, 124°14.3730'W). These corner markers are approximately 9 feet tall, have a yellow / red hull, a fixed yellow tower structure with integrated radar reflector, green grating on the lower half of the tower, reflective tape on the upper tower, and are lighted. These markers are also single-point moorings and will remain in place as part of PacWave’s maintained offshore infrastructure. Mariners should be aware that subsurface equipment and mooring components may also be present. Mariners are requested to avoid the test site if possible and to use caution when navigating in or near the area. For additional information, contact [email protected] or 541-737-9023. If there is an emergency or concerns regarding this equipment, please call our 24 / 7 Watch Desk at 541-819-4096. USCG Northwest District Local Notice to Mariners 45/2026 STRAIT OF JUAN DE FUCA - SEQUIM BAY General / Autonomous Vessel Operations The Pacific Northwest National Laboratory (PNNL) will be deploying an autonomous docking platform and autonomous surface vessel for research activities in Sequim Bay, Washington (approximately 48-04.53N 123-01.44W; 48-03.74N 123-01.71W; and 48-03.49N 123-00.82W). Deployments will occur for a total of approximately 10 days between September 21, 2026, and December 21, 2026. Equipment will only be deployed during daylight hours and may be left unattended for up to 2 hours. Mariners are requested to use caution and reduce wake when transiting nearby during deployment and retrieval operations. The accompanying research vessel may be hailed on VHF-FM channel 16. For additional information, contact Rob Cavagnaro at 206-528-3372 or [email protected]. Position 48-03.60N 123-01.20W USCG Northwest District Local Notice to Mariners 45/2026 STRAIT OF JUAN DE FUCA - SEQUIM BAY General / Miscellaneous The Pacific Northwest National Laboratory (PNNL) will be deploying a buoy for research activities in Sequim Bay, Washington (approximately 48-04.69N 123-01.92W). The deployment will occur between approximately in September 2026 and last approximately 6 months. Mariners are requested to use caution and reduce wake when transiting nearby during deployment and retrieval operations. The accompanying research vessel may be hailed on VHF-FM channel 16. For additional information, contact Matt Howard at +1-805-320-7848 or [email protected]. Position 48-04.70N 123-01.92W USCG Northwest District Local Notice to Mariners 45/2026 PUGET SOUND - SHILSHOLE BAY General / Marine Events / Regatta (Race) 13-15 NOV 2026, 1000-1800 each day. 3-day keelboat collegiate regatta racing around temporary buoys in Shilshole Bay with one day being a distance race either to Pt. Robinson or Double Bluff weather depending. USCG Northwest District Local Notice to Mariners 45/2026 PUGET SOUND - SHILSHOLE BAY General / Marine Events / Regatta (Race) 14 NOV 2026 - 20 MAR 2027, 1100-1700 each day. Sailing regatta conducted in Shilshole Bay on the second Saturday of NOV-JAN and third Saturday of FEB and MAR. Participants will race between preestablished marks throughout Shilshole Bay. USCG Northwest District Local Notice to Mariners 45/2026 PUGET SOUND - SHILSHOLE BAY General / Miscellaneous Hiram M. Chittenden Locks will close the Small Locks from 06:00, 07 DEC 2026 to 18:00, 18 JAN 2027, to conduct installation of components for the Emergency Closure System (ECS). During this time, the Large Lock will be available for lockings vessels. Further closure information is posted on USACE website: https://www.nws.usace.army.mil/Missions/Civil-Works/Locks-and-Dams/Chittenden-Locks/Operations/ Position 47-39.93N 122-23.85W USCG Northwest District Local Notice to Mariners 45/2026 RICH PASSAGE - SINCLAIRINLET General / Marine Events / Regatta (Race) 21 NOV 2026, 1000-1800. Annual sailing regatta in Sinclair Inlet. Participants will round temporary and permanent marks throughout the waterway. USCG Northwest District Local Notice to Mariners 45/2026 DECEPTIONPASS - SKAGIT BAY General / Bridges / Repairs, Painting, Or Fender Replacement Washington State Department of Transportation (WSDOT) will be cleaning and painting the Division Street Bridge (LLNR 18783) across the Skagit River, mile 12.5, in Mount Vernon, WA. Construction will occur 24-hours a day and seven days per week from 0600 on 01 May 2026 to 2359 on 31 December 2026. Containment system will be attached to half of the bridge 24-hours a day and will prevent falling debris. Containment will reduce the vertical clearance on half of the bridge from 18.5 feet to 6.75 feet above high water, The containment will be marked with amber caution lighting. Work will not occur in the water, although one support vessel will be needed for worker safety. Mariners are advised to use caution while transiting the area. For additional information, contact Mr. Shane Spahr, P.E. at (360) 757-5990 or [email protected] Position 48-25.28N 122-20.38W USCG Northwest District Local Notice to Mariners 45/2026 LAKE WALLULA - SNAKE RIVER General / Miscellaneous The USACE Walla Walla District has scheduled the annual navigation lock maintenance closure for 2026. During this time, the Locks and Dams on the Columbia and Snake Rivers have scheduled routine inspections and maintenance, as well as some non-routine work. For the five (5) navigation locks in the Walla Walla District, the closure schedules are as follows: McNary (RM 292) – 0001 on 21 Feb 2026 to 2359 on 28 Mar 2026 Ice Harbor (RM 9.7) – 0001 on 21 Feb 2026 to 2359 on 28 Mar 2026 Lower Monumental (RM 41.6) – 0001 on 21 Feb 2026 to 2359 on 28 Mar 2026 Little Goose (RM 70.3) – 0001 on 21 Feb 2026 to 2359 on 28 Mar 2026 Lower Granite (RM 107.3) – 0001 on 21 Feb 2026 to 2359 on 28 Mar 2026 For additional information regarding McNary, Ice Harbor, Lower Monumental, Little Goose and Lower Granite lock maintenance closures, contact Walla Walla District, Operations Division, at (509) 527-7364. The Portland District lock maintenance schedule is published separately – mariners can contact Portland District at (503) 808-4510. Position 46-15.07N 118-52.88W USCG Northwest District Local Notice to Mariners 45/2026 POSSESSION SOUND - SNOHOMISH RIVER General / Bridges / Construction SNOHOMISH, WA- SNOHOMISH RIVER - STATE ROUTE 9 BRIDGE - Max J Kuney Construction, under contract with the Washington State Department of Transportation, will be performing bridge-building construction activities from 1 Aug 26 through 31 Oct 27. This is a new SR9 bridge being built over Mile 12.2 of the Snohomish River, parallel to the existing bridge. Construction will occur during daylight hours, Monday through Saturday. There is a buoy-marked 90-foot-wide safety corridor for vessels to pass through as this work is being done. All work will occur well within the work zone designated by regulatory and channel marker buoys. For more information, contact Will Gruenhagen at (425)-736-0418 or [email protected]. Position 47-54.73N 122-06.52W USCG Northwest District Local Notice to Mariners 45/2026 SNOHOMISH RIVER General / Bridges BNSF Railway will install scaffolding 4 feet below the north part of the bridge for maintenance from October 13, 2026, to November 25, 2026. Amber flashing lights will be installed on the bottom of the scaffolding. Maintenance work will occur Monday – Friday between the hours of 0800 – 1700. Mariners may contact BNSF Supervisor Structures Matt Wells 253-405-6074 in case of emergency. The swing draw will open as normal. Position 48-02.15N 122-11.03W USCG Northwest District Local Notice to Mariners 45/2026 SNOHOMISH RIVER General / Bridges WASHINGTON – EVERETT HARBOR – SNOHOMISH RIVER – BNSF Bridge Notice The Coast Guard has approved 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. 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 45/2026 POSSESSION SOUND - SNOHOMISH RIVER General / Marine Construction (Excluding Bridges) / Dredging American Construction Company will be conducting dredging operations in the Snohomish River in Everett, WA from 04 January - 14 February 2027. Work includes dredging from the Port fo Everett North Marina area A and B, operating up to 24-hours per day, seven days a week. Working vessels include a clamshell dredge, M/V Mukilteo to dredge and M/V Lummi to load the split-hull scows. The scows will be towed to the DNR Port Gardner disposal site (47-58.86’N, 122-16.74’W). Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution after passing arrangements have been made with the Tug Captain. Working vessels will be monitoring VHF-FM channels 13 and 16. For additional information, contact Aaron McMahill at (253) 350-1670, [email protected]. Position 48-00.13N 122-13.32W USCG Northwest District Local Notice to Mariners 45/2026 POSSESSION SOUND - SNOHOMISH RIVER General / Marine Construction (Excluding Bridges) / Dredging American Construction Company will be conducting dredging operations in the Snohomish River in Everett, WA (RM 50+00 to 120+50) from 16 Oct 2026 through 14 Feb 2027. Work includes maintenance dredging of approximately 203,000 CY, operating 24-hours per day, seven days a week until completion. Working vessels include a clamshell dredge, M/V Patriot and M/V Mukilteo to dredge and load the split-hull scows. The scows will be towed to the DNR Port Gardner Disposal site. 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 Aaron McMahill at (253) 350-1670, [email protected]. USCG Northwest District Local Notice to Mariners 45/2026 FRANKLIN D ROOSEVELT LAKE - SPOKANE RIVER General / Marine Events / Fireworks 27 NOV 2026, 1900-1910. Fireworks display launched from barges on Lake Coeur d'Alene at approximately 47°40.276' N, 116°47.241' W. Vessels advise to remain 850 ft away from launch platforms during the display. Position 47-40.28N 116-47.23W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR PUGET SOUND, SUBMERGED LAND ACT (SLA) - STRAIT OF JUAN DE FUCA General / Miscellaneous SMRU Consulting will be testing one acoustic buoy in a location near Haro Strait from 11 Sep – 10 Dec 2026. A yellow, 4-foot in diameter buoy will be located in approximate position 44-38.14N 123-06.18W. The buoy will be monitoring underwater acoustic noise and will be in operation (unmanned) 24 hours a day and marked with a FL Y 6s (flashing yellow six second) light. Mariners are requested to keep a safe distance from the buoy. For additional information, contact Jason Wood at (360) 298-0166 or [email protected]. Position 48-25.13N 123-06.18W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR PUGET SOUND, SUBMERGED LAND ACT (SLA) - STRAIT OF JUAN DE FUCA General / Miscellaneous The Pacific Northwest National Laboratory (PNNL) will be deploying a lit 1 ft x 1 ft x 1 ft Sofar Spotter buoy for research activities in Clallam Bay, Washington (approximately 48°15'54.0”N, 124°16'12.0"W). The deployment will occur between approximately December 2026 and September 2027 and last up to 9 months. Mariners are requested to use caution and reduce wake when transiting nearby during deployment and retrieval operations. The accompanying research vessel may be hailed on VHF-FM channel 16. For additional information, contact Matt Howard at +1-805-320-7848 or [email protected]. Position 48-15.90N 124-16.20W USCG Northwest District Local Notice to Mariners 45/2026 DESDEMONA SANDS - TANSY POINT General / Marine Construction (Excluding Bridges) / Dredging J.F. Brennan Dredging will be conducting dredging operations near the Port of Astoria Central Waterfront Slip 1 on the Columbia River from 02 November - 15 December 2026. Hours of operations will be Monday through Saturday 0600-2000. Operations are permitted only during the Ebb Tide current. Dredge No. 7 will be dredging at the Port of Astoria Central Waterfront Slip 1 between Pier 1 & 2 and the submerged dredge pipe will discharge in the Columbia River Flow in position 46-11.45’ N, 123-51.73’ W. Dredge vessels will be monitoring VHF-FM channel 79, 13 and 16. 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 Randy Steed, Senior Project Manager at (503) 314-3348 or email [email protected] Position 46-11.45N 123-51.52W USCG Northwest District Local Notice to Mariners 45/2026 UMPQUA RIVER General / Bridges OREGON – UMPQUA RIVER – Bridge Notice ODOT will be replacing the dolphins and bumpers under the Umpqua River Bridge (BRDG UID 38617) on US101 at Reedsport, OR. Test drilling from a barge will occur at multiple locations. Navigation and the operations of the draw will not be impacted. The second phase is to replace the bumpers and dolphins with a hammer driven pile. The drilling will occur from October 15, 2026, through December 31, 2026. The removal and replacement of dolphins and bumbers will occur during 2027 with dates TBD. Position 43-42.58N 124-06.05W USCG Northwest District Local Notice to Mariners 45/2026 UNION BAY REACH General / Bridges Washington – Portage Bay - University Bridge – Trolley Pole Replacement Combined Construction Inc. will be performing trolley pole replacement work on the University Bridge. Work will include replacement of trolley poles and associated anchor bolts at locations across the bridge, excluding the movable portion of the drawbridge. Work is scheduled to begin October 5, 2026, and continue through April 30, 2027. Typical work hours will be from 0600 to 1600. Anchor bolt installation will be performed using an Under Bridge Inspection Truck (UBIT), which will occupy a portion of the roadway and position equipment beneath the bridge during operations. Mariners transiting the area are advised to use caution while work is underway. For additional information regarding the project or work activities, please contact: Trena Chandler, P.M. Combined Construction Inc. (425) 320-6389 [email protected] Position 47-39.17N 122-19.23W USCG Northwest District Local Notice to Mariners 45/2026 UNION BAY REACH General / Bridges WASHINGTON – LAKE WASHINGTON SHIP CANAL – UNION BAY REACH – Bridge deviation The Coast Guard has approved a temporary deviation for the operating schedule that governs the Fremont Bridge (BRIG UID 31179), mile 2.6, and the University Bridge (BRIG UID 31182), mile 4.3, both crossing the Lake Washington Ship Canal in Seattle, WA. The deviation will accommodate the Seattle Marathon running event. To facilitate this event, the draws of the subject bridges will be authorized to not open to marine vessels. The closure will be; Fremont Bridge from 0800 to 1300 on November 29, 2026, and the University Bridge from 0800 – 1100 on November 29, 2026. Vessels that do not require bridge openings may continue to transit beneath these bridges during the closure period. The draws will be required to open, if needed, for vessels engaged in emergency response operations during this closure period. For more information contact Kit Loo at (206) 684-3669 or [email protected]. Position 47-39.17N 122-19.23W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - VANCOUVER TO BONNEVILLE General / Marine Construction (Excluding Bridges) / Dredging The M/V YAQUINA may be conducting dredging activities in the Columbia River, Lower Vancouver Bar and Vancouver Turning Basin (RM 103+00 to RM 105+20) from 05 – 12 Nov 2026. Disposal will be at (RM 101 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 45/2026 COLUMBIA RIVER - VANCOUVER TO BONNEVILLE General / Marine Construction (Excluding Bridges) / Boring and Core Samples The Interstate Bridge Replacement Program will be conducting geotechnical investigations west of the existing Interstate 5 Bridge across the Columbia River between Vancouver, WA and Portland, OR at Columbia (RM 106.5) from 02 Nov 2026 – 31 Jan 2027. The work will infringe on the Alternate Barge Channel South, Alternative Barge Channel North, and the Vancouver to The Dalles Channel (lift span). The Tug South Creek and Barge Mark 12 will be on station and will reduce available horizontal clearances. The normal amount of horizontal clearance available at these channels will be reduced, and vessels are advised to use alternate channels if horizontal clearance is not sufficient in the channels. Only one channel will be reduced at any one time. Mariners are requested to maintain an appropriate distance and create no wake within 200 feet. Tug operator will be monitoring VHF Channels 13 and 16. During non-working hours the barge will remain on station with al-round white lights on all 4 corners, pursuant to CFR 83.30. Additional work will take place at other locations in the main stem Columbia River but will not infringe on the designated navigation channels on the main Columbia River. There will be no infringement on the available vertical clearances and no changes to the operation of the lift span. For more information, contact Mark Marine Services at 360-772-0916. Boring Details: Location (LAT/LONG) with State/End dates 1: IBR 10: 45-36.92N 122-40.71W (Dates: 21 – 29 Jan 2027) 2: IBR 11: 45-36.90N 122-40.66W (Dates:12 – 20 Jan 2027) 3: IBR 12: 45-36.94N 122-40.69W (Dates: 21 – 29 Jan 2027) 4: IBR 13: 45-36.94N 122-40.67W (Dates: 12 – 20 Jan 2027) 5: IBR 14: 45-37.01N 122-40.65W (Dates: 23 Dec – 11 Jan 2027) 6: IBR 15: 45-37.01N 122-40.64W (Dates: 14 – 22 Dec 2026) 7: IBR 16: 45-37.00N 122-40.62W (Dates: 3 – 11 Dec 2026) 8: IBR 17: 45-37.08N 122-40.61W (Dates: 20 Nov – 2 Dec 2027) 9: IBR 18: 45-37.07N 122-40.59W (Dates: 11 – 19 Nov 2027) 10: IBR 19: 45-37.15N 122-40.56W (Dates 23 Dec 2026 –11 Jan 2027) 11: IBR 20: 45-37.14N 122-40.55W (Dates 14 – 22 Dec 2026) 12: IBR 21: 45-37.14N 122-40.54W (Dates 3 – 11 Dec 2026) 13: IBR 22: 45-37.21N 122-40.53W (Dates 20 Nov 2 Dec 2026) 14: IBR 23: 45-37.21N 122-40.51W (Dates 11 – 19 Nov 2026) 15: IBR 24: 45-37.28N 122-40.48W (Dates 2 – 10 Nov 2026) 16: IBR 25: 45-37.27N 122-40.43W (Dates 2 – 10 Nov 2026) USCG Northwest District Local Notice to Mariners 45/2026 MILLER SANDS - WELCH ISLAND General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS may be conducting dredging activities in the Columbia River, Skamokawa Bar (RM 32+24 to RM 36+05) from 03 – 10 Nov 2026. Disposal will be at RM 28 OR 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 45/2026 COLUMBIA RIVER - WESTPORT General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS may be conducting dredging activities in the Columbia River, Westport Bar/Eureka Bar (RM 46+45 to RM 48+45) from 05 – 10 Nov 2026. Disposal will be at (RM 45 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 46-08.53N 123-19.02W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - WESTPORT General / Marine Construction (Excluding Bridges) / Dredging HME will be performing dredging operations near Wahkiakum Ferry Channel, Columbia River (RM 43.2) from 10 – 15 Nov 2026, working 7 days a week 24 hours a day. Dredge spoils will be transported downstream to (RM 40.4). Vessels include Tug “Terilyn” and support Tug “Douglas”, a dump scow “Sea Horse” and one split-hull dump scow. Vessels will be monitoring VHF Channels 13 and 16 sith working channel VHF 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 46-08.98N 123-22.18W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - WILLAMETTE RIVER General / Bridges / Lighting and Other Signals Clearance gauges missing Position 45-31.65N 122-40.15W USCG Northwest District Local Notice to Mariners 45/2026 WILLAMETTE RIVER General / Bridges OREGON - WILLAMETTE RIVER – PORT OF PORTLAND – Bridge notice The Coast Guard has approved a temporary deviation to the operating schedule that governs the Hawthorne Highway Bridge (BRDG UID 38555), mile 13.1, crossing the Willamette River at Portland, Oregon. This deviation accommodates the Tofurky Trot running event on 26 November 2026. This deviation will allow the subject bridge draw to remain in the closed-to-navigation position from 0900 to 1100 on 26 November 2026. The vertical clearance for the Hawthorne Bridge is 49 feet, referenced to the vertical clearance above Columbia River Datum 0.0. Vessels that do not require a bridge opening may continue to transit beneath the bridge during this closure period. The bridge will be able to open for emergencies, and there is no immediate alternate route for vessels to pass. In accordance with 33 CFR 117.35(e), the drawbridge must return to its regular operating schedule immediately at the end of the effective period of this temporary deviation. For additional information contact Matt Studer at [email protected]. Position 45-30.78N 122-40.25W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - WILLAMETTE RIVER General / Marine Events / Boat Parade A ship parade will be occurring from the Fremont Bridge to Ross Island, Portland, OR, on the Willamette River starting from Riverplace Marina from 7:00 p.m. to 9:00 p.m. on December 7th, 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 45-30.65N 122-40.25W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - WILLAMETTE RIVER General / Marine Events / Boat Parade A ship parade will be occurring on the Willamette River between Riverplace Marina, Portland, OR, and Milwaukie Bay Park, Milwaukie, OR from 7:00 p.m. to 9:00 p.m. on December 8th, 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 45-30.55N 122-40.25W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - WILLAMETTE RIVER General / Marine Events / Boat Parade A ship parade will be occurring on the Willamette River between the Fremont Bridge and Ross Island, Portland, OR, starting from Riverplace Marina from 7:00 p.m. to 9:00 p.m. on December 9th, 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 45-30.68N 122-40.28W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - WILLAMETTE RIVER General / Marine Events / Boat Parade A ship parade will be occurring on the Willamette River between the Fremont Bridge and Milwaukie Riverfront Park, Portland, OR, starting and ending from Riverplace Marina from 7:00 p.m. to 9:00 p.m. on December 15th, 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 45-29.27N 122-40.17W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - WILLAMETTE RIVER General / Marine Events / Boat Parade A ship parade will be occurring on the Willamette River between Riverplace Marina, Portland, OR, and Milwaukie Bay Park, Milwaukie, OR 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 45-30.58N 122-40.18W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - WILLAMETTE RIVER General / Marine Events / Boat Parade A ship parade will be occurring on the Willamette River between the Fremont Bridge and Milwaukie Riverfront Park, Portland, OR, starting and ending from Riverplace Marina from 7:00 p.m. to 9:00 p.m. on December 17th, 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 45-28.75N 122-40.03W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - WILLAMETTE RIVER General / Marine Events / Boat Parade A ship parade will be occurring on the Willamette River between the Fremont Bridge and Ross Island, Portland, OR, starting and ending at Riverplace Marina from 7:00 p.m. to 9:00 p.m. on December 16th, 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 45-30.37N 122-40.10W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - WILLAMETTE RIVER General / Marine Events / Boat Parade A ship parade will be occurring on the Willamette River between the Fremont Bridge and Ross Island, Portland, OR, starting and ending at Riverplace Marina from 7:00 p.m. to 9:00 p.m. on December 18th, 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 45-30.33N 122-40.08W USCG Northwest District Local Notice to Mariners 45/2026 COLUMBIA RIVER - WILLAMETTE RIVER General / Marine Events / Boat Parade A ship parade will be occurring on the Willamette River between Cathedral Park and Ross Island, Portland, OR, starting from Riverplace Marina and ending at Cathedral Park from 7:00 p.m. to 9:30 p.m. on December 20th, 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 45-30.63N 122-40.22W USCG Northwest District Local Notice to Mariners 45/2026 SECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - YAQUINA BAY General / Hazards To Navigation / Wrecks OREGON - YAQUINA BAY - Sunken Sailing Vessel. Mariners are advised that the Sailing Vessel Sandpiper has sunk in position approximate 44°37'34.8"N 124°03'17.4"W. Efforts for recovery are ongoing and mariners are asked to report any debris they may encounter to the Sector Columbia River Command Center via telephone at 1-(833) PNW-USCG (769-8724). Position 44-37.58N 124-03.30W USCG Northwest District Local Notice to Mariners 45/2026 AIDS TO NAVIGATION DISCREPANCIES 51 aids reported with a discrepancy. NAME | LLNR | STATUS | AID TYPE Anacortes Channel Light 4 | 19055 | TRLB | FD Baker Bay West Channel Entrance Jetty Light 1 | 14415 | DAYMK MISSING | FD Bonneville Pool Lighted Buoy 4 | 11768 | SINKING | FD Bonneville Pool Light 22 | 11855 | LT EXT | FD Camas Slough Range Front Light | 11455 | LT EXT/STRUCT DMGD | FD Cap Sante Waterway Daybeacon 4 | 19005 | STRUCT DMGD/TRUB | FD Cape Horn Range Front Light | 11615 | DBD DMGD | FD Cape Horn Range Front Light | 11615 | LT EXT | FD Cape Disappointment Light | 695 | WATCHING PROPERLY | FD Coos Bay Inside Range A Rear Light | 8790 | LT EXT | FD Cottonwood Island Turn Lighted Buoy 36 | 10865 | OFF STATION | FD Cottonwood Island Turn Lighted Buoy 36 | 10865 | RELIGHTED | FD Cleaveland Dike Light 3 | 10715 | LT EXT | FD DART Tsunami Warning Lighted Buoy 46419 | 765.7 | MISSING | FD Ediz Hook Light | 16280 | LT EXT | FD Empire Range B Rear Light | 8870 | LT EXT | FD Fisherman Bay Sector Light | 19560 | WATCHING PROPERLY | FD Franklin D. Roosevelt Lake Light A | 14125 | LT EXT | FD Franklin D. Roosevelt Lake Buoy 2 | 14130 | STRUCT MISSING | FD Franklin D. Roosevelt Lake Light B | 14135 | LT EXT | FD Franklin D. Roosevelt Lake Buoy 15 | 14355 | MISSING | FD Grays Harbor South Reach Light 16 | 15635 | DAYMK MISSING/STRUCT DMGD | FD Damon Point Light | 15940 | DAYMK MISSING/STRUCT DMGD | FD Henrici Range Front Light | 11100 | WATCHING PROPERLY | FD Olympic View Marina Floating Breakwater Light C | 17857.3 | LT EXT | PA Blakely Island Shoal Isolated Danger Lighted Buoy DS | 19430 | MISSING/TRSAIS | FD Martin Island Dike Light 63 | 10975 | DAYMK MISSING/STRUCT DMGD | FD Lyle Point Light 2 | 17355 | STRUCT MISSING/STRUCT DEST/TRLB | FD Lyle Point Light 2 | 17355 | TRLB | FD Chinook Dike Light 7 | 14625 | DAYMK MISSING/STRUCT DMGD | FD Port Angeles Terminal 7 Light A | 16333 | LT EXT | PA Point No Point Light | 16550 | LT IMCH | FD Edmonds Underwater Park Buoys (2) | 16690 | MISSING | PA Edmonds Fishing Reef Buoys (2) | 16720 | MISSING | PA Rogue River North Jetty Light 3 | 8660 | SS INOP | FD Heceta Head Lighthouse | 635 | WATCHING PROPERLY | PA Heceta Head Lighthouse | 635 | WATCHING PROPERLY | PA Port Orchard Marina Entrance Light 1 | 18090 | LT IMCH | PA Snake River Daybeacon 4 | 13140 | STRUCT DEST/TRLB | FD Snake River Daybeacon 4 | 13140 | TRLB | FD Snohomish River Range Front Light | 18550 | WATCHING PROPERLY | FD Navsta Pier Light A | 18540 | LT EXT | PA Navsta Pier Light B | 18541 | LT IMCH | PA Snohomish River Light 7 | 18586 | TRLB | FD St. Helens Jetty Light 79 | 11050 | LT EXT | FD Birch Bay Mooring Basin Light 2 | 19912 | LT IMCH | PA Three Tree Point Yacht Club Racing Buoy K | 17040 | STRUCT MISSING | PA Blair Waterway Light 5 | 17168 | LT EXT | PA Washougal Lower Range Rear Light | 11535 | WATCHING PROPERLY | FD Westport Dike Light 58 | 10475 | LT EXT/STRUCT DMGD | FD Willapa River Daybeacon 2 | 15250 | STRUCT MISSING | FD Abbreviations: DAYMK MISSING daymark missing; DBD DMGD dayboard damaged; LT EXT light extinguished; LT IMCH light improper characteristic; MISSING missing; OFF STATION off station; RELIGHTED relighted; SINKING sinking; STRUCT DEST structure destroyed; STRUCT DMGD structure damaged; STRUCT MISSING structure missing; TRLB temporarily replaced by lighted buoy; TRSAIS temporarily replaced by synthetic AIS; TRUB temporarily replaced by unlighted buoy; WATCHING PROPERLY watching properly (corrected). FD federal aid, PA private aid. USCG Northwest District Local Notice to Mariners 45/2026

Recent active messages

LNM13-22450D View
COLUMBIA RIVER - NORTH PORTLAND HARBOR General / Marine Construction (Excluding Bridges) / Dredging HME will be performing dredging operations near CBC East Barge Slip, Columbia River (RM 108) from 15 Nov – 01 Dec 2026, working 7 days a week from 0600-1800. Dredging side at 45-36.67N 122-36.20W. Dredge spoils will be transported downstream to (RM 109.6). Vessels include Tug “Husky” and support Tug “St. Helens”, a dump scow “Sea Vulture” and one split-hull dump scow. Vessels will be monitoring VH
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CRIMS ISLAND TO ST HELENS - MARTIN ISLAND General / Marine Construction (Excluding Bridges) / Dredging The M/V YAQUINA may be conducting dredging activities in the Columbia River, Eureka Bar/Gull Island (RM 78+50 to RM 81+00) from 05 – 12 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/o
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LNM13-3B7F66 View
COLUMBIA RIVER - PUGET ISLAND General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS may be conducting dredging activities in the Columbia River, Puget Island Bar (RM 37+35 to RM 39+10) from 05 – 10 Nov 2026. Disposal will be at (RM 28 OR 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 e
11/11/2026
LNM13-D91602 View
COLUMBIA RIVER - MILLER SANDS General / Miscellaneous Orion Marine Group (OMG) will be conducting pile driving and enrockment activities near Columbia River Marker Pile #23 and #24 from 23 Nov 2026 – 28 Feb 2027. ABS barges Ellis Island and San Clemente will be onsite and can be hailed on VHF channel 72. Barges may be onsite overnight and will be marked with all-round white lights. Mariners are requested to transit at their slowest safe speed to minimize wake and proceed with caution after passi
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LNM13-A57990-2 View
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11/11/2026
LNM13-7845D6 View
NAVAREA XII - District 13, Oceanic boundary to EEZ / Space Operations / Hazardous Warning Area / Commercial (Hazardous) Hazardous operations, including the trunk hazard ascending, will be conducted for SpaceX CRS- 35 reentry with a splashdown in the Pacific Ocean from 180700Z NOV 2026 to 280350Z NOV 2026 Hazardous operation areas are bounded by the following coordinates: Trunk Hazard Area: 37-42.00N 124-28.00W 38-22.00N 126-32.00W 40-39.00N 130-29.00W 43-38.00N 136-41.00W 45-00.00N 135-36.00W 41
11/11/2026
LNM13-F01B2F View
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11/11/2026
LNM13-CBAB91 View
CRIMS ISLAND TO ST HELENS - LONGVIEW 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 the Mouth of the Cowlitz River from 12 November 2026 – 31 January 2027. Dredging operations will occur near the navigational channel with placement on Howard Island. Dredge Oregon, along with workboats Clackamas, Ivanhoff, and Cowlitz will be monitoring VHF-FM Channels 13 and 16. M
11/11/2026
LNM13-ECE03A View
COLUMBIA RIVER - WESTPORT General / Marine Construction (Excluding Bridges) / Dredging HME will be performing dredging operations near Wahkiakum Ferry Channel, Columbia River (RM 43.2) from 10 – 15 Nov 2026, working 7 days a week 24 hours a day. Dredge spoils will be transported downstream to (RM 40.4). Vessels include Tug “Terilyn” and support Tug “Douglas”, a dump scow “Sea Horse” and one split-hull dump scow. Vessels will be monitoring VHF Channels 13 and 16 sith working channel VHF 67, 68, o
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LNM13-16A6E2 View
COLUMBIA RIVER - WESTPORT General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS may be conducting dredging activities in the Columbia River, Westport Bar/Eureka Bar (RM 46+45 to RM 48+45) from 05 – 10 Nov 2026. Disposal will be at (RM 45 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 ma
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LNM13-B04DBF View
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11/11/2026
LNM13-D57C2F View
COLUMBIA RIVER - LAKE WALLULA General / Miscellaneous McNary Dam (RM 292) on the Columbia River will be having slower than normal lockage openings beginning 05 November 2026 until further notice due to a broken hydraulic line and issues with the valve hydraulic power unit. Upstream lockage's will require an additional 15-20 minutes to complete. For additional information, contact McNary Chief Operator at 541-922-2231, Call Sign: WUJ41 or NWW Operations Division at 509-527-7364. Position 45-55.72
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LNM13-DE0D51 View
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11/11/2026
LNM13-A57990 View
LOWER MONUMENTAL General / Bridges The Coast Guard intends to approve a temporary bridge deviation from the operating schedule that governs the Camas Prairie Railroad Bridge (BRDG UID 30149) across the Clearwater River at mile 0.6 in Lewiston, ID. This deviation will support mechanical repairs from 0600 on 07 December 2026 to 1800 on 8 December 2026. The Camas Prairie Bridge provides 7 feet of vertical clearance in the closed-to-navigation position at high water. The subject bridge will not be a
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LNM13-D737B8 View
SNOHOMISH RIVER General / Bridges WASHINGTON – EVERETT HARBOR – SNOHOMISH RIVER – BNSF Bridge Notice The Coast Guard has approved 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
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LNM13-095CC8 View
COLUMBIA RIVER - VANCOUVER TO BONNEVILLE General / Marine Construction (Excluding Bridges) / Dredging The M/V YAQUINA may be conducting dredging activities in the Columbia River, Lower Vancouver Bar and Vancouver Turning Basin (RM 103+00 to RM 105+20) from 05 – 12 Nov 2026. Disposal will be at (RM 101 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
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LNM13-2122BB View
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LNM13-F3F844 View
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 15+90) from 19 Oct 2026 through 20 Nov 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,
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LNM13-E79432 View
COLUMBIA RIVER - CAPE HORN General / Miscellaneous Bergerson Construction, Inc. will commence pile driving operations between Prindle Dike Light 73 on the Columbia River in the vicinity of River Mile 134 (Latitude/Longitude: 45°34'57.35"N, 122° 9'29.93"W) down to Cape Horn Range Front Light (Latitude/Longitude: 45°34'4.75"N, 122°11'36.27"W) from November 9 through November 18, 2026, Monday through Friday, from 0700 to 1800 daily. A 60’ x 120’ crane barge and assistant vessel will be monitoring V
04/11/2026
LNM13-FA9A46 View
CRIMS ISLAND TO ST HELENS - LONGVIEW General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS may be conducting dredging activities in the Columbia River, Slaughter Bar/Lower Dobelbower Bar (RM 63+20 to RM 67+40) from 03 – 10 Nov 2026. Disposal will be at RM 70 OR side and RM 61 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 cha
04/11/2026
LNM13-DA7592 View
MILLER SANDS - WELCH ISLAND General / Marine Construction (Excluding Bridges) / Dredging The M/V ESSAYONS may be conducting dredging activities in the Columbia River, Skamokawa Bar (RM 32+24 to RM 36+05) from 03 – 10 Nov 2026. Disposal will be at RM 28 OR 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
04/11/2026
LNM13-7114E0 View
SECTOR PUGET SOUND, SUBMERGED LAND ACT (SLA) - STRAIT OF JUAN DE FUCA General / Miscellaneous The Pacific Northwest National Laboratory (PNNL) will be deploying a lit 1 ft x 1 ft x 1 ft Sofar Spotter buoy for research activities in Clallam Bay, Washington (approximately 48°15'54.0”N, 124°16'12.0"W). The deployment will occur between approximately December 2026 and September 2027 and last up to 9 months. Mariners are requested to use caution and reduce wake when transiting nearby during deploymen
04/11/2026
LNM13-38FEC8 View
DISTRICT 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 17 – 20 Nov 2026. Operations include the launch and recovery of various unmanned aircraft and flight testing in several locations within area W-570 including an operational area approximately 15 – 30 nautical miles west of Tillamook, centered on 45-23.78N 124-33.54W. Mariners should use caution when tra
04/11/2026
LNM13-9FCE2E View
BONNEVILLE POOL General / Bridges All navigation lights are extinguished. The deck lights are watching properly. The bridge needs new electrical wiring and the navigation lights will be extinguished UFN. Temporary navigation lights may be installed at a later date. Position 45-39.73N 121-54.03W USCG Northwest District Local Notice to Mariners 45/2026
04/11/2026
LNM13-64DB8A View
CRIMS ISLAND TO ST HELENS - LONGVIEW General / Marine Construction (Excluding Bridges) / Dredging HME will be performing dredging operations near Port of Longview on the Columbia River (RM 65+52 through 67+00 and RM 58) from 07 – 31 Dec 2027, working 7 days a week 24 hours a day. Vessels include Tug “Terilyn” and a dump scow “Robert L” and “WJ Marston”, monitoring VHF Channels 13 and 16. Mariners are urged to transit at their slowest safe speed to minimize wake and proceed with caution after pas
04/11/2026

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