tillergirl
Well-Known Member
A nice short week, probably on account of Easter!
UKHO Permanent/Temporary/Preliminary Notices
1. New Editions of ADMIRALTY Charts to be published 09 April 2026 -
SNC 1491 - International Chart Series - England- East Coast, Harwich and Felixstowe. 1:10,000
SNC 1594 England - East Coast, River Stour, Erwarton Ness to Manningtree. 1:10,000; Continuation to Manningtree. 1:10,000
2. ENGLAND - East Coast - Depths. - Two reductions of depth in the River Thames in Barking Reach close by Margaret Ness. Unlikely to hinder leisure craft.
Local
1. Harwich Haven - Seasonal Recreational Buoys - From or around 31 March - 03 April 2026 the following seasonal recreational marks will be reinstated (positions in WGS 84 datum):
Pennyhole - Yellow Cone Buoy at 51º 53.55’ N 001º 18.00’ E
Cork Ledge Racing Mark - Yellow Can Buoy at 51º 54.50’ N 001º 23.40’ E
Armada Racing Mark - Yellow Can Buoy at 51º 52.83’ N 001º 22.19’ E
Fox’s - Yellow Conical Buoy at 51º 54.00’ N 001º 21.00’ E
Cobbolds Point Buoy - Green Conical Buoy at 51º 57.64’ N 001º 22.16’ E
Dovercourt Bay - Yellow Spherical Buoys at:
51° 55.97’ N 001° 17.39’ E
51° 55.81’ N 001° 16.99’ E
51º 55.65’ N 001º 16.59’ E
51º 55.63’ N 001º 16.55’ E
51° 55.40’ N 001° 16.48’ E
51º 55.18’ N 001º 16.42’ E
Shotley Horse - Yellow Pillar Buoy at 51º 57.32’ N 001º 17.46’ E
Speed Limit Marker Buoy - Yellow Spherical Buoy at 51º 56.48’ N 001º 07.24’ E
Beacon Hill - Yellow Can Buoy at 51° 56.46’ N 001° 17.85’ E
2. Harwich Haven - Dredging Operations - Barney - from or around 24 March 2026, the workboat Barney (IMO 9740938) will be carrying out dredging operations in Harwich Harbour and at the Port of Felixstowe for approximately 4 weeks. Contact Harwich VTS (VHF 71) for latest dredging traffic information.
3. APEM Group - Sonde deployments and retrievals by APEM Group on behalf of Anglian Waters Ltd - will be deploying and retrieving sondes activities between May 2026 and August 2026 in The Blackwater Outer, Crouch and Colne. These operations will support environmental monitoring and research efforts. Further details, including specific locations, timings, and safety guidance, are provided See the chartlet for the locations see the Local List at: Notices to Mariners.
Vessel JEAN T with length 16.89m and breadth 5.25m, and GNH Crusader with length 14.8m and breadth 4.9m will display the appropriate signals/lights as appropriate for their vessel is able to maintain a continuous listen watch on VHF Channel 11 and 16. There are no requirements for an “ease down” from other crafts.
Survey Area: Estimated date of deployment: Estimated date of retrieval
BCCTS5 Sonde Crouch 13th May ‘26 14th June ‘26
BCCTS6 Sonde Crouch 13th May ‘26 14th June ‘26
BCCTS7 Sonde Crouch 14th June ‘26 14th July ‘26
BCCTS3 Sonde Blackwater 14th June ‘26 14th July ‘26
BCCTS4 Sonde Blackwater 14th June ‘26 14th July ‘26
BCCTS1 Sonde Colne 14th June ‘26 14th July ‘26
BCCTS2 Sonde Colne 14th July ‘26 15th Aug ‘26
4. Sizewell C - Arrival of Jack-up Barge NP497 - on or about the 1st April, the Jack up Barge (JUB) NP497 is scheduled to arrive in Sizewell C harbour to conduct works on the Combined Drainage Outfall (CDO) and the Desalination Plant Intake and Outfall (Desal) as advised in Local Notice to Mariners No 11 of 2026.
The NP497 will be towed to the harbour approaches by the sea tug Neptune 11 who will transfer the tow to the multicat Paul D for the final positioning of the NP497. This operation will take place near the northern edge of the Marine Construction Zone (MCZ) in an area already congested with the JUB Excalibur and associated service vessels. The tugs and the NP 497 will be restricted in their ability to manoeuvre, accordingly all vessels are requested to give the C-Odyssey and NP497 as wide a berth as possible during positioning operations and to pass at as slow a speed as is practicable. This position is a stand-by position pending a move to the barge’s operational position All vessels will monitor VHF Ch12 throughout. Intended temporary position of NP 497: Latitude 52° 13’ 25”N Longitude 001° 37’ 44” E. Image in the Local List.
That's it. Happy Easter to all.
UKHO Permanent/Temporary/Preliminary Notices
1. New Editions of ADMIRALTY Charts to be published 09 April 2026 -
SNC 1491 - International Chart Series - England- East Coast, Harwich and Felixstowe. 1:10,000
SNC 1594 England - East Coast, River Stour, Erwarton Ness to Manningtree. 1:10,000; Continuation to Manningtree. 1:10,000
2. ENGLAND - East Coast - Depths. - Two reductions of depth in the River Thames in Barking Reach close by Margaret Ness. Unlikely to hinder leisure craft.
Local
1. Harwich Haven - Seasonal Recreational Buoys - From or around 31 March - 03 April 2026 the following seasonal recreational marks will be reinstated (positions in WGS 84 datum):
Pennyhole - Yellow Cone Buoy at 51º 53.55’ N 001º 18.00’ E
Cork Ledge Racing Mark - Yellow Can Buoy at 51º 54.50’ N 001º 23.40’ E
Armada Racing Mark - Yellow Can Buoy at 51º 52.83’ N 001º 22.19’ E
Fox’s - Yellow Conical Buoy at 51º 54.00’ N 001º 21.00’ E
Cobbolds Point Buoy - Green Conical Buoy at 51º 57.64’ N 001º 22.16’ E
Dovercourt Bay - Yellow Spherical Buoys at:
51° 55.97’ N 001° 17.39’ E
51° 55.81’ N 001° 16.99’ E
51º 55.65’ N 001º 16.59’ E
51º 55.63’ N 001º 16.55’ E
51° 55.40’ N 001° 16.48’ E
51º 55.18’ N 001º 16.42’ E
Shotley Horse - Yellow Pillar Buoy at 51º 57.32’ N 001º 17.46’ E
Speed Limit Marker Buoy - Yellow Spherical Buoy at 51º 56.48’ N 001º 07.24’ E
Beacon Hill - Yellow Can Buoy at 51° 56.46’ N 001° 17.85’ E
2. Harwich Haven - Dredging Operations - Barney - from or around 24 March 2026, the workboat Barney (IMO 9740938) will be carrying out dredging operations in Harwich Harbour and at the Port of Felixstowe for approximately 4 weeks. Contact Harwich VTS (VHF 71) for latest dredging traffic information.
3. APEM Group - Sonde deployments and retrievals by APEM Group on behalf of Anglian Waters Ltd - will be deploying and retrieving sondes activities between May 2026 and August 2026 in The Blackwater Outer, Crouch and Colne. These operations will support environmental monitoring and research efforts. Further details, including specific locations, timings, and safety guidance, are provided See the chartlet for the locations see the Local List at: Notices to Mariners.
Vessel JEAN T with length 16.89m and breadth 5.25m, and GNH Crusader with length 14.8m and breadth 4.9m will display the appropriate signals/lights as appropriate for their vessel is able to maintain a continuous listen watch on VHF Channel 11 and 16. There are no requirements for an “ease down” from other crafts.
Survey Area: Estimated date of deployment: Estimated date of retrieval
BCCTS5 Sonde Crouch 13th May ‘26 14th June ‘26
BCCTS6 Sonde Crouch 13th May ‘26 14th June ‘26
BCCTS7 Sonde Crouch 14th June ‘26 14th July ‘26
BCCTS3 Sonde Blackwater 14th June ‘26 14th July ‘26
BCCTS4 Sonde Blackwater 14th June ‘26 14th July ‘26
BCCTS1 Sonde Colne 14th June ‘26 14th July ‘26
BCCTS2 Sonde Colne 14th July ‘26 15th Aug ‘26
4. Sizewell C - Arrival of Jack-up Barge NP497 - on or about the 1st April, the Jack up Barge (JUB) NP497 is scheduled to arrive in Sizewell C harbour to conduct works on the Combined Drainage Outfall (CDO) and the Desalination Plant Intake and Outfall (Desal) as advised in Local Notice to Mariners No 11 of 2026.
The NP497 will be towed to the harbour approaches by the sea tug Neptune 11 who will transfer the tow to the multicat Paul D for the final positioning of the NP497. This operation will take place near the northern edge of the Marine Construction Zone (MCZ) in an area already congested with the JUB Excalibur and associated service vessels. The tugs and the NP 497 will be restricted in their ability to manoeuvre, accordingly all vessels are requested to give the C-Odyssey and NP497 as wide a berth as possible during positioning operations and to pass at as slow a speed as is practicable. This position is a stand-by position pending a move to the barge’s operational position All vessels will monitor VHF Ch12 throughout. Intended temporary position of NP 497: Latitude 52° 13’ 25”N Longitude 001° 37’ 44” E. Image in the Local List.
That's it. Happy Easter to all.
