Category: Safety

All mariners are advised that three potential elevated areas of seabed have been identified within the Wild Oyster Restoration Project gravel deployment area (see LNtM 06/23). Surveying is to be carried out and a further notice will be issued.  The coordinates supplied are as follows:

53° 18′ 45.6588” N	3° 52′ 34.2588” W
53° 18′ 47.0412” N	3° 52′ 33.78” W
53° 18′ 46.8612” N	3° 52′ 33.6612” W

Please also find the attached annotated chart. The data has not been verified and so this message is precautionary only.

Matthew Forbes
MSc LLB (hons) BSc AFNI
Conwy Harbour Master

Sill Gate Maintenance

Works will commence on the 10^th July 2023 for a period of approximately 5 days. All works will be carried out at basin impound when the gate is in the raised position and sill gate operations will continue as normal throughout the works.

Hoist Maintenance

The hoist will be out of action for 2 weeks from the 10th of July 2023. This temporary closure is necessary to carry out essential maintenance and ensure the safety and functionality of the hoist.

Victoria Dock

Mariners are advised that until further notice the Tidal Gate in Dock Victoria will not be operated due to a gate failure.

No vessels are authorised to enter or exit the Dock without first making contact with the Dock Master.

For all vessels movement relating to the Dock please contact the Dock master on [email protected]

This Notice to mariners will expire on the 11/06/2023 if required a further Notice to Mariners will be issued on the 11/06/2023

All mariners are hereby advised that four number orange marker buoys will be deployed in Conwy Bay to aid gravel deployment for the Wild Oyster Restoration Project. It should be noted that these are not for any navigational warning purposes.

All other information and co-ordinates are in the attached PDF.

Matthew Forbes
MSc LLB (hons) BSc AFNI
Conwy Harbour Master

Aid to navigation Llanddwyn Island “North East Rock” South Cardinal, Y.B is off station.

53°08.04′ N 004°24.47′ W

Mariners are advised to exercise extreme caution in this area.

The Caernarfon Harbour Master has published the latest bar buoy positions:

Buoy	Latitude		Longitude	Lights
LLANDDWYN ISLANDSW ROCK BUOYS CARDINAL	N02791	53ᵒ 07’.795 N	004ᵒ25’.005 W	Unlit
LLANDDWYN ISLANDE ROCK BUOYS CARDINAL	N2792	53ᵒ 08’.040 N	004ᵒ24’.470 W	Unlit
SAFE WATER MARK	N17963	53ᵒ 07’.149 N	004ᵒ25’.182 W	L Fl.10s
C 1 STARBOARD	N02793	53ᵒ 06’.95 N	004ᵒ24’.51 W	Fl.G.5s
C 2 PORT	N02794	53ᵒ 07’.02 N	004ᵒ24’.09 W	Fl.R.10s
C 3 STARBOARD	N02795	53ᵒ 07’.03 N	004ᵒ 23’.72 W	Q.G
C 4 PORT	N02796	53ᵒ 07’.15 N	004ᵒ23’.03  W	Q.R
C 5  STARBOARD	N02797	53ᵒ 07’.14 N	004ᵒ23’.37 W	Fl.G(2).5s
C 6 PORT	N02798	53ᵒ 07’.16 N	004ᵒ21’.91W	Fl.R.5s
MUSSEL BANK	N02799	53ᵒ 07’.22 N	004ᵒ20’.93 W	Fl.R(2).5s
C 8 PORT	N02801	53ᵒ 07’.68 N	004ᵒ19’.33 W	Fl.R.3s
C 10 PORT	N02802	53ᵒ 07’.964 N	004ᵒ18’.249 W	Q.R
C 7  STARBOARD	N02803	53ᵒ 08’.18 N	004ᵒ18’.13 W	Q.G
C 12 PORT	N02804	53ᵒ 08’.50 N	004ᵒ17’.38 W	Fl(2)R.10s
C 9  STARBOARD	N02805	53ᵒ 08’.55 N	004ᵒ16’.92 W	Fl.G.2s
CHANGE BUOYS CARDINAL	N02834	53ᵒ 08’.81 N	004ᵒ16’.74 W	VQ(6)+LFl 10s
SEIONT RIVERBIFURCATION	N14410	53ᵒ 08’.51 N	004ᵒ16’.75 W	Unlit
TRAETH GWYLLTSTARBOARD	N10125	53ᵒ 09’.23 N	004ᵒ16’.12 W	Fl(2)G.10s
C 13  STARBOARD	N02811	53ᵒ 09’.54 N	004ᵒ15’.90 W	Fl(4)G.10s
C 11  STARBOARD	N02812	53ᵒ 09’.88 N	004ᵒ15’.63 W	Fl(2)G.5s
C 14 PORT	N02813	53ᵒ 10’.23 N	004ᵒ15’.41 W	Fl.R.5s
C 9  STARBOARDPORT DINORWIC	N08507	53ᵒ 10.65 N	004ᵒ13’.95 W	FL(3)G.10s