Notices to Mariners Week 9

Click here to see all Local Navigation and Notice to Mariners

UKHO Permanent/Temporary/Preliminary

1. New Editions of ADMIRALTY Charts published 04 March 2021 –
Chart 323 – International Chart Series, Dover Strait, Eastern Part. 1:75,000
Chart 1350 – International Chart Series, France – North Coast, Dunkerque and Approaches. 1:20,000
Chart 1351 – International Chart Series, France – North Coast, Approaches to Calais. 1:15,000: Calais. 1:7,500
Chart 1406 North Sea, Dover and Calais to Orford Ness and Scheveningen. 1:250,000
2. NETHERLANDS – Buoyage. – The buoyage that marked the construction of Borsele Wind Farm (in Dutch Waters) has now been deleted. Only standard Wind Farm lights exist. The boundary marking the Wind Farm is included in the image and entry is prohibited.
3. ENGLAND – East Coast – Depths. – One reduction of depth on the edge of the marked channel of the River Thames between the Mucking No 3 and Mucking No 1 SHBs. At over 8m, unlikely to hinder leisure craft


1. WOOLWICH REACH – ENVIRONMENT AGENCY -THAMES BARRIER CLOSURES – The Thames Flood Barrier will be closed once a month for test purposes, in accordance with a programme issued for a period of six months, commencing 01st May 2021. Listed below are the times between which the Thames Barrier will be closed to navigation for test purposes. During these periods’ navigation in the Thames Barrier Control Zone, between Margaretness and Blackwall Point, will be restricted and any movements in this area will require permission from London VTS. PROGRAMME OF CLOSURES: May 2021 to October is listed in the Local List at: Notices to Mariners
2. Harwich Harbour & Approaches – Seasonal Recreational Buoy – On or after the 1st March 2021 the following seasonal recreational mark will be reinstated: Harwich Shelf, East Cardinal Buoy, 51°56’.84N 001°18’07E. Positions given are WGS 84
3. Port of Wells – Dredging
4. Havengore – Havengore Bridge: Operational – I am pleased to inform you that Havengore Bridge is now operational and is open to marine traffic in accordance with MOD byelaws. We apologise for any inconvenience caused by the closure and thank you for your patience. Nicki Uden – Community Liaison Officer, SHOEBURYNESS RANGE Careline: 0800 0560108 Email:
5. East Coast of England – The Wash Approaches to King’s Lynn – Temporary Anchorage for floating pipelines. Viking Link Project Charts: BA 1200, BA 108, Imray Y9 – As part of the Viking Link Project 2 individual floating pipelines will be towed into the Wash and temporarily anchored for a few days until towed to the Lincolnshire coast where they will be pulled through two separate pre-drilled bores. Each pipeline is approx. 550m long with an outside diameter of 450mm and marked in accordance with rule 24 (g) of the IRPCaS. An anchor assembly with a buoy and marker light will be deployed by the vessel “Forth Drummer” immediately prior to the arrival of each pipeline towed by the deep-sea tug “Bestla”, who will hand over the pipeline to the Forth Drummer and depart. The Forth Drummer will moor the pipeline to the anchor assembly until the coast site is ready. The anchor assembly will be removed until next pipeline is due. Due to the extreme length and very low profile, the Forth Drummer will act as guard vessel whilst pipeline is anchored, and all craft must remain 1000m from the anchor position, and observe any instructions from the Forth Drummer who will maintain a listening watch on VHF Ch 16 & Ch 14 The anchor position will be in following position: 52° 56.100’ N 000° 20.200’E. Please see attached chartlet and a fully detailed project plan on the local list in the above quoted web site page.. The first pipeline is scheduled to arrive on 23rd February and due to leave on 27th February 2021, with second pipeline due on 14th March and depart on 16th March 2021, all dates subject to weather. From mid February until mid April high speed support craft will be based at King’s Lynn and will transit to / from Lincolnshire daily, end date will be subject to weather conditions.

Local NtMs compiled by and reproduced by kind permission of Roger Gaspar, author of Crossing the Thames Estuary