Notices to Mariners Week 7

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UKHO Permanent/Temporary/Preliminary

1. New Editions of ADMIRALTY Charts published 4th March 2021 – 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 and Calais. 1:7,500 – Both include significant safety-related information inclduing new compulsory pilotage limits for shipping: Chart 1406 – North Sea, Dover and Calais to Orford Ness and Scheveningen. 1:250,000
2. ENGLAND – East Coast – Buoyage. – As reported by the London Array Wind Farm two weeks ago, the two clusters of Wave Recorder buoys within the Wind Farm area have been removed.
3. ENGLAND – East Coast – Depths. – 4 very slight reductions of depth in the Sea Reach Shipping Channel between Nos 6 and 7. At over 13m unlikely to hinder leisure craft. I have included depths vide NtM 5032 of 2020 (close to the south bank) in the image.


1. RIVER THAMES – LONG REACH – POWELL DUFFRYN / CORY WHARF MARINE WORKS – Contractors working on behalf of Thurrock Council will be conducting marine works on Powell Duffryn / Cory Wharf on or about Monday 15th February 2021 for approximately 16-weeks. The works will be undertaken from the jack-up barge TOPJACK and other marine plant, which involves the removal of timber fenders, removal of steel bridges and replacement ladders and navigation lights.
London VTS will broadcast requests for vessels to “proceed with caution” or “proceed at slow speed”, as described in Notices to Mariners No. 1 of 2021 as required by the works. International Code Flags “Romeo Yankee” will be displayed when this is in effect. Further details will be broadcast by London VTS on VHF Channel 68.
2. RIVER MEDWAY – Gillingham Reach – Chatham Locks “Bullnose” Fixed Navigation Lights – the fixed navigation lights on Chatham Dock Bullnose have been upgraded. The lights centred at the approximate position 51°23.990N – 000° 33.210E have been converted to units with higher intensity and now have an operational range of 3 nautical miles, the height of the lights remains unchanged. Trinity House and the UKHO have been informed, any amendments to nautical publications that are required will be promulgated as soon as practicable. Admiralty Chart Number 1835 refers. Further information may be obtained from Medway VTS on VHF Channel 74, call sign “Medway VTS” or telephone 0151 949 6148 or 0151 949 6650.
3. Port of Wells – Dredging
4. Havengore Bridge update (05.02.21) Havengore Bridge remains closed to marine traffic. The contractors attended this week, ran a full diagnostic check and repaired the known issue. However, on completion of this work they identified an intermittent fault with a hydraulic valve. We are now awaiting the fault report and further information on next steps and estimated downtime which we will share when it becomes available. We apologise for the ongoing inconvenience and thank you for your patience. Nicki Uden – Community Liaison Officer, SHOEBURYNESS RANGE

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