Recreational Boating Information for the Northwest

Notice To Mariners | 13th District
Weekly notices from the United States Coast Guard and Home Land Security. 
notices can obtained via e-mail subscription through the USCG Navigation Center. 
website: LOCAL NOTICE TO MARINERS - USCG NAVIGATION CENTER

Note: not all notices are posted on our page. Only information pertaining to Puget Sound, San Juan Islands and Lake Union / Washington. Click link above for complete details for the 13th district or any other district within the United States.


Latest USCG District 13:

July 2014:
  • 26-14 1st Weekly Edition (PDF
  • 27-14 2nd Weekly Edition (PDFNew!

June 2014:
  • 22-14 1st Weekly Edition (PDF
  • 23-14 2nd Weekly Edition (PDF
  • 24-14 3rd Weekly Edition (PDF
  • 25-14 4th Weekly Edition (PDF)​


Wk 27-14: WASHINGTON – LAKE WASHINGTON SHIP CANAL – LAKE WASHINGTON - I-90 Special Bridge Notice
WSDOT will be performing expansion joint replacements on the I-90 bridge east bound located between I-405 and the Mercer Island off ramp on I-90. Containment tarps will be installed under each expansion joint to capture demolition debris (most of the debris will be captured on the road way surface). Mariners are advised to use caution when transiting under bridge expansion joints (enclosure 8). During installation, for approximately 6 hours apiece at each location, vertical clearance will be reduced by approximately 12 feet (4 foot containment structure, and 8 feet of under bridge heavy equipment). Sail boats are advised to not transit under the expansion joints if possible. During containment system installation, there will also be work boats in the water that will be monitoring channel VHF-FM channel 13 if passing arrangement need to be made. Work will start on 14 Jul 14 with the demolition operations starting on 16 Jul 14 with an estimated completion date of 15 Aug 14.


Wk 27-14: WASHINGTON – EVERETT – SNOHOMISH RIVER – SR 529 Special Bridge Notice
WSDOT will be conducting inspections on the underside of the Snohomish River Bridges (SR 529) at RM 3.6, in Everett, WA from 14 – 18 Jul 14. The inspection crew will be using Under Bridge Inspection Trucks (UBITS) to access the underside of the structure from the bridge deck. The UBITS will give way and avoid any potential conflict between vessel traffic and inspection equipment. The SR 529 Bridges provides 38 feet of vertical clearance above mean high water elevation while in the closed position.


Wk 26-14: WASHINGTON – PUGET SOUND – DUWAMISH WATERWAY – Diving operations
The U.S. Environmental Protection Agency Dive Team, together with the Army Corp. of Engineers, will be conducting dive operations in the Lower Duwamish Waterway from 21 Jul 14 through 25 Jul 14. Dive operations are expected to begin at 0900 and end at 1530 each day. Diving will be focused around mile 0.5 and 3.1. The dives will not be inside of the navigation channel, but several are immediately adjacent to it. The dive team will display proper dive safety floats and diver flags. VHF-FM channels 13 and 16 will be monitored by the dive vessel.​


Wk 24-14: WASHINGTON – SWINOMISH CHANNEL SOUTH ENTRANCE – Mariner advisory
The entrance to the southern Swinomish Channel has a history of shoaling, therefore, mariners are advised to transit this waterway at the highest tide possible and exercise good seamanship and voyage planning. Multiple vessel grounding has occurred in the channel westward of Goat Island between Swinomish Channel South Entrance Light 11 (Light List number 18815) and Swinomish Channel South Entrance Buoy 1 (Light List number 18785).


WK 22-14: WASHINGTON – LAKE WASHINGTON SHIP CANAL – SR520 BRIDGE – Special bridge notice
The USCG has issued a temporary deviation from the normal operating schedule that governs the Evergreen Point Floating Bridge (SR 520) across Lake Washington. This deviation allows the draw span to remain in the closed position and need not open for maritime traffic from 0930 until 1800 on 14 Jun 14. This deviation is approved to accommodate road traffic for the UW graduation ceremony. The bridge will be required to open, if needed, for vessels engaged in emergency response operations during this closure period.


WK 22-14: WASHINGTON – LAKE WASHINGTON SHIP CANAL – Montlake Bridge – Special bridge notice
The USCG has issued a temporary deviation from the normal operating schedule that governs the Montlake Bridge across the Lake Washington Ship Canal. This deviation allows the draw span to remain in the closed position and need not open for maritime traffic from 0930 until 1230 on 14 Jun 14, and from 1630 until 1830 on 14 Jun 14, and from 1100 until 1800 on 15 Jun 14. This deviation is approved to accommodate road traffic for the UW commencement ceremonies. The bridge will be required to open, if needed, for vessels engaged in emergency response operations during this closure period.


WK 22-14: WASHINGTON – ADMIRALTY INLET – ADMIRALTY BAY – Salvage operations
Salvage operations will be conducted at the southern end of Admiralty Bay in Puget Sound during day light hours on 09 Jun 14. The operation will be about 700 yards from the shoreline at approximate position 48-06.0N, 122-36.3W. Up to four vessels will be used in fixed positions, and divers working in the water. The lead vessel in charge is the Kay Gee Lady, and all vessels will monitor VHF-FM channels 16 and 68. Mariners are requested not to approach the operation any closer than 200 yards for diver safety. For more information, call (206) 478-1175.


WK 22-14: WASHINGTON – PUGET SOUND – APPLE COVE TO POINT KEYPORT – Temporary lighted buoy deployed
NOAA has deployed a temporary research lighted buoy southwest of Spring Beach at approximate position 47-43-36.0N, 122-23-54.0W. The buoy is grey, conical shaped and marked with a flashing yellow four seconds (FL Y 4s) light. This buoy is scheduled to be removed prior to 01 Sep 14. For more information contact Mr. Christian Meinig at (206) 526-6149 or by e-mail at Christian.Meinig@noaa.gov.


WK 18-14: WASHINGTON – LAKE WASHINGTON SHIP CANAL – University Bridge and Montlake Bridge Special Notice
The USCG has issued a temporary deviation from the operating schedule that governs the University Bridge, mile 4.3, and Montlake Bridge, mile 5.2, Lake Washington Ship Canal in Seattle, Wa. from 0730 until 0930 on 18 May 14. The bascule spans of the University Bridge and Montlake Bridge may remain closed to vessel traffic to facilitate safe efficient movement of "Beat the Bridge" event participants. The University Bridge in the closed position provides 30 feet of vertical clearance (46 feet at center). The Montlake Bridge in the closed position provides 32 feet of vertical clearance (48 feet at center). Vessels which do not require a bridge opening may continue to transit beneath the bridges during this closure period. The deviation allows the bascule spans of the Montlake Bridge and University Bridge to remain in the closed position and need not open for maritime traffic. The bridge shall operate in accordance to 33 CFR § 117.1051(e) at all other times. Mariners will be notified and kept informed of the bridges’ operational status via the USCG Local Notice to Mariners publication and Broadcast Notice to Mariners as appropriate. The bridge will be required to open, if needed, for vessels engaged in emergency response operations during this closure period.


WK 17-14: WASHINGTON – HOOD CANAL – SEABECK – Temporary lights
Four (4) flashing yellow four second lights have been temporarily set at approximate position 47-38-36.1N, 122-49-47.7W. These lights are temporarily in place while a new marina is constructed in Seabeck, WA.


WK 16-14: WASHINGTON – LAKE WASHINGTON SHIP CANAL – SR520 BRIDGE - Pontoon anchoring operations
Anchoring operations on the westernmost cross pontoon (Pontoon Alpha) commenced on 21 Apr 14 and will continue through 30 Apr 14. Pontoon Alpha will be permanently anchored just north of, and on the western half of the existing 520 bridge west high-rise. Derrick barges and tugs will be active in the area. Vessel traffic will be restricted to a narrow navigation channel marked by red and green buoys. The existing west high-rise vertical clearance will be not be impacted by anchoring operations. Exclusion area buoys and signage will mark the four Pontoon Alpha submerged anchor wires. Enclosure 7 shows a detailed view of the western channel construction area. For more information contact the Marine Assembly Manager at: eedwards@mansonconstruction.com or for up to date schedule changes, visit the WSDOT’s web site at: http://www.wsdot.wa.gov/Projects/SR520Bridge/WeekendClosures.htm.


WK 11-14: WASH. – ADMIRALTY INLET - Virtual AIS position Puget Sound Traffic Separation Lane “SB” to be created
The U.S. Coast Guard will be creating a Virtual AIS (Automatic Identification System) identifier at the following position in Admiralty Inlet: Puget Sound Traffic Separation Lane V-AIS “SB” (LLNR 16502) in position: 48-06-47.016N 122-29-40.428W
The Virtual AIS message will not correspond to any physical buoy but will be broadcasted from an AIS Base Station to coincide with the position listed above. Vessels with AIS capable systems will be able to see the symbology and other information on their displays. For more information about AIS, Mariners should read enclosure (6) to this Local Notice to Mariners and/or go to the U.S. Coast Guard Navigation Center website page http://www.navcen.uscg.gov/?pageName=AISmain.


WK 11-14: WASH. – SEATTLE – DUWAMISH WATERWAY -Partial waterway obstruction South Pk. Bridge construction
Kiewit-Massman will be obstructing part of Duwamish Waterway near the existing South Park Bridge, with less than 50 percent of the waterway obstructed through 30 Jul 14. The company will leave the bascule leafs in the lowered position to facilitate the construction schedule through 30 Jul 14. Marine traffic that requires the bridge to open, Kiewit-Massman request at least 12 hours in advance notice to open the bridge. Construction vessels will monitor VHF-FM Ch 14 and 16. Mariners are requested to transit the construction area with no wake. Points of contact will be James Richards (206) 993-0528 or Mike Stengle (253) 377-5531.


WK 11-14: WASHINGTON – ROBINSON POINT DGPS – Proposed DGPS Off-Air Time
The USCG NAVCEN is proposing an off air date for Robison Point, WA DGPS (887) for preventive maintenance on 09 Apr 14 from 1000 until 1300. An alternate date will be 10 Apr 14 from 1000 until 1300. No lost of DGPS coverage is expected. For additional information or objections, contact Navigation Center DGPS Operations at (703) 313-5902, or at:
http://www.navcen.uscg.gov/?pageName=dgpsSiteInfo&currentOutages.


WK 10-14: WASHINGTON – PUGET SOUND – SHIP CANAL – Changes to Aids to Navigation at Shilshole Bay Entrance
The U.S. Coast Guard is proposing to make a number of changes to the Aids to Navigation for Shilshole Bay Entrance. These changes are proposed due to consistent discrepancy status of the Shilshole Bay Entrance Range. To correct these discrepancies would entail the removal and brushing of a vast number of tress at the Commodore Park, and on private property. This proposal is designed to eliminate the need to remove the foliage and still provide navigational safety at the entrance. The following changes would be made: 

  • Shilshole Bay Approach Lighted Buoy “S” (LLNR 16785 & 18110): Disestablish as no longer necessary for safe navigation.
  • Shilshole Bay Entrance Buoy 1 (LLNR 18125): Change to Shilshole Bay Entrance Lighted Buoy 1, with a green flashing light, every 2.5s (Fl G 2.5s) and a nominal range of 4 NM.
  • Shilshole Bay Entrance Buoy 2 (LLNR 18130): Change to Shilshole Bay Entrance Lighted Buoy 2, with a red flashing light, every 2.5s (Fl R 2.5s) and a nominal range of 4 NM.
  • Shilshole Bay Breakwater Light 3 (LLNR 16790 & 18140): Change the light characteristic to a green flashing light, every 4s (Fl G 4s) to prevent misidentifying the light with Shilshole Bay Entrance Lighted Buoy 1.
  • Shilshole Bay Entrance Range Front Light (LLNR 18115): Change to Shilshole Bay Entrance Direction Light, displaying an green Occulting light every 4s (Oc G 4s), increase the intensity and narrow the display of the light to be shown 1.5° either side of the channel

Map Overiew:































WK 09-14: WASHINGTON – SWINOMISH CHANNEL – Reported shoaling in the South Entrance
Shoaling has been reported in the Swinomish Channel, on the north side of the channel between Swinomish Channel South Entrance Daybeacon 13 (LLNR 18826) and Swinomish Channel South Entrance Light 11 (LLNR 18815) in the vicinity of Goat Island. The USACE survey from Nov 2012 shows the channel varying from 8 feet to 14 feet in the vicinity. The southern Swinomish Channel has a history of shoaling, therefore, mariners are advised to transit this waterway at the highest tide possible and exercise good seamanship and voyage planning.


WK 09-14: WASHINGTON – LAKE WASHINGTON – State Route 520 Bridge - Special bridge notice
The US Coast Guard has issued a public notice announcing that the State of Washington is requesting approval for a permit amendment to the location and plans for State Route 520 General Bridge Permit 1-12-13. The proposed amendment will only affect the west approach bridge north (WABN) portion of the State Route 520 (SR 520) Bridge project, specifically to the final design of the west approach bridge north (WABN) structure. Public Notice 02-14 solicits comments and is available at http://www.navcen.uscg.gov/?pageName=pnBridges&Active=1&region=13. Question or comments can be addressed to the Bridge Administrator, Mr. Steve Fischer at (206) 220-7282, or steven.m.fischer3@uscg.mil.


WK 07-14: WASHINGTON – PUGET SOUND – SEATTLE TO OLYMPIA – CHAMBERS BAY – Bridge deviation schedule
The USCG has approved a deviation to the operating schedule of the Burlington Northern Santa Fe (BNSF) railroad drawbridge in Steilacoom, WA. This deviation allows the BNSF drawbridge at mile 0.0 to remain in the closed position and need not open for maritime traffic from 0001 on 20 Feb 14 to 2359 on 26 Feb 14. All other times, the bridge shall operate in accordance with 33 CFR 117.35(e). To request an opening mariners are requested to contact Ms. Ogonek at (206) 625-6130, or Mr. Berry at (913) 940-4393. Any other questions may be addressed with the D13 Bridge Administrator at (206) 220-7282.​


WASHINGTON – LAKE WASHINGTON – SR520 BRIDGE: Special Bridge Notice (Revised from LNM WK: 30/13)
The USCG has revised the draw span operating schedule for the SR 520 Evergreen Point Floating Bridge. Construction activities will continue for the duration of the bridge replacement project until approximately 30 Aug 15. Vessels which are impacted by the closure of the east channel that are not able to navigate through the west channel of the existing bridge may request an opening of the center draw span for passage. Boaters may request a draw span opening by calling WSDOT at (206) 440-4490. Eight temporary white mooring buoys (six on the north side and two on the south side) marked with FL W 4s (flashing white four seconds) lights have been deployed near the bridge for the temporary mooring of construction barges. Refer to LNM 05/13 chart 18447 for temporary chart corrections. For up to date schedule changes and special event schedules for the SR 520 Bridge, please visit WSDOT’s web site at: http://www.wsdot.wa.gov/Projects/SR520Bridge/WeekendClosures.htm. The Evergreen Point Floating Bridge (SR 520) between Seattle and Bellevue shall operate as follows (revised schedule):

East Span:
1. Currently, the east navigation channel under SR 520 is blocked by construction activities. However, on the special dates listed below, the navigation channel will be temporarily open to boaters. Unfortunately, due to construction equipment that cannot be moved, the vessel clearance within the navigation channel has decreased from 64 feet to 59 feet. All mariners with vessels taller than 59 feet must continue to use the floating bridge center draw span.

Both the east and west navigation channels beneath SR 520 will be open on the following dates in 2014:
Center Span:

1. The draw need not open from 0630 to 0959 and from 1500 to 1900 Monday through Friday, except Federal Holidays other than Columbus Day.

2. The draw need open only on the hour and half hour from 1000 to 1430 every day of the week, if at least 2 hour advance notice is given.

3. The draw will open on request at all other times if at least 2 hours advance notice is given.

4. Telephone requests for bridge opening may be directed as collect calls to the Highway Radio, or made by direct telephone communication through the Seattle Marine Operator, Station KOH, or through other marine wire or radiotelephone service.

West Span:
1. Eight temporary pilings (two groups of four pilings) marked with FL Y 4s (flashing yellow four seconds) lights have been placed in the southeast part of Union Bay near the west end of the bridge for the temporary mooring of pontoons. Refer to LNM 05/13 chart 18447 for temporary chart corrections.

2. The west channel has a clearance of 45 feet.

3. Enclosure 3 shows 12 temporary barge mooring pilings have been placed on the north side of the bridge just west of the west navigation channel. All 12 pilings are marked with QY (quick flashing yellow) lights, which may be obscured at times when barges and other equipment are moored at the site.


WK 47-13: WASHINGTON – STRAIT OF JUAN DE FUCA – SWINOMISH CHANNEL – Reported shoaling
A report of shoaling in the Swinomish Channel has been made after transiting the Swinomish Channel South Entrance. A mariner stated the total water depth was 7 feet while transiting on a +2 feet tide IVO Swinomish Channel South Entrance Buoy 1 (LLNR 18785) and Goat Island. The latest USACE survey shows the channel is less than 12 feet in this location. The southern Swinomish Channel has a history of shoaling every year, therefore, mariners are advised to transit this waterway at the highest tide possible and exercise good seamanship and voyage planning.