Notices to Mariners Week 18
UKHO and Trinity House Permanent/Temporary or Preliminary Notices:
1. ENGLAND – East Coast – Depths. – 5 reductions of depth in Sea Reach of the River Thames; these are off Hole Haven Point.
2. East Coast Of England – Middle Cross Sand – Trinity House have today (26.4.21) reported that the East Cross Sand and Barley buoys have each been moved north. I have added the ‘aggregated’ (I almost said ‘aggrieved’ ) image of all the recent changes on depths. Note that the Barley SCB had already been moved north once this year.
1. Harwich Haven – Maintenance Dredging – the work boat Panda (27.27m LOA) will continue to undertaking water injection dredging within the Haven. It is expected she will be departing the Haven on the 9th of May 2021. Detailed movements can be obtained from Harwich VTS on VHF Channel 71. Dates are approximate and subject to alteration.
2. North Falls Offshore Windfarm; Geophysical and environmental site investigations – North Falls Offshore Farm Limited has contracted Fugro GB Marine Limited (Fugro) to carry out a geophysical and environmental site investigation in the North Sea for the proposed North Falls Offshore Wind Farm (NFOW) site. The North Falls Offshore Wind Farm site is located to the east of Felixstowe and bordering the Greater Gabbard and Galloper existing wind farms.
This is worth looking at as it involves the Wallet, Rough Shoals, Sunk Centre. Go to: Notices to Mariners, call up the ‘Local Authority list and you can see the chartlet of the surveyed area. There are 3 vessel involved and will alll be towing ‘things’. They will have a 1000m – that’s a kilometer – exclusion zone and they have reported that they will have a wide turning circle. Pictures of the vessels included. From the 10th May for 8 to 9 weeks.
3. Harwich Haven – Maintenance dredging – on or about the 23th of April 2021 the dredger Sospan Dau (70.30m LOA) will commence maintenance dredging in the harbour, for a period of approximately 5 days. Dredge materials will be deposited at the beneficial sites in the River Stour and River Orwell highlighted in the chartlet shown on the Local list in the above quoted web page. Detailed movements can be obtained from Harwich VTS on VHF Channel 71.
Lights and shapes as required by Collision Regulations will be exhibited and a listening watch on VHF Channel 71 will be maintained throughout.
4. PORT OF GREAT YARMOUTH – Quay Inspection Surveys 26th – 28th April 2021 – survey work will be undertaken by BAM Nuttall on quay piling within Great Yarmouth River Port from Monday 26th April 2021 until Wednesday 28th April 2021. The survey vessel (callsign ‘BAM Safety Boat’) will monitor VHF Ch12. The survey will be focused on Berth 21 (South Quay), Berth 22 (Above Haven Bridge), and Berth 62 (Brush Bend). Survey will also be undertaken on the River Bure (Broads Authority Harbour Area). Mariners are requested to pass the survey vessel at slow speed, giving plenty of clearance. For further information please contact Great Yarmouth LPS on VHF Ch 12 (Callsign ‘Yarmouth Radio’) or Telephone 01493 335511.
5. Port of Wells is dredging
6. London Array Wind Farm – exclusion zones – Work planned for period 26/04/2021 to 2/05/2021
• Crew Transfer Vessels: Windcat 21, Windcat 27, Windcat 29, Windcat 36 and Windcat 39 will take offshore technicians to the Offshore Wind Turbine Generators and Offshore Substations for routine operations and maintenance work between the hours of 06:00 and 22:00.
• Spectrum 2 will be on site conducting survey works for the cable cleaning project.
• Spectrum 1 will take offshore technicians to the Offshore Wind Turbine Generators and Offshore Substations for routine BOP work. After the 1st of May, the vessel will be supporting the Cable cleaning project by acting as a CTV for the dive support vessels MV C-Fenna and MV C-Force • MV C-Force and MV C-Fenna will be acting as dive vessels for the cable cleaning project. A 250m exclusion zone will be around these vessels when working in the London array windfarm.
• Dalby Tees will be acting as CTV for the dive support vessels MV C-Fenna and MV C-Force
• Dalby Wharfe will take over BOP work from the Spectrum 1 from the 1st of May.
Unfotunately the LAWF are not showing the Notice to Mariners that might give details of the location of the cable surveys. There should be room to use Foulger’s Gat, certainly if there is only on exclusion zone at the time in Foulger’s.
Link to details – http://www.crossingthethamesestuary.com/page9.html
Local NtMs compiled by and reproduced by kind permission of Roger Gaspar, author of Crossing the Thames Estuary