Notices to Mariners Week 29
Sorry, a week late
1. ENGLAND – East Coast – Depth – One reduction of depth in the Yantlet Channel, Sea Reach, River Thames, east of the Sea Reach No 5 PHB. Not likely to hinder leisure craft.
2. ENGLAND – East Coast – Depths. – Two reductions of depth in the Caister Road adjacent to the North Scroby. In Week 2, Notice 239 notified of three significant reductions of depth in the same area so I have incorporated all five reductions in the image.
3. ENGLAND – East Coast – Depths. – 4 reductions of depth in the River Thames, three in Barking Reach, one in Gallions Reach. None likely to hinder leisure craft.
4. ENGLAND – East Coast – Depths. – 5 reductions of depth on the eastern side of the Middle Cross Sand (off-shore off Caister) and two in the Barley Picle (just east of the Barley south cardinal). Note Trinity House NtM No 5 in week 21 (UKHO NtM 2906 week 24) notified us of the move of the Barley South Cardinal north. Both the depth changes and the buoy move is included in the image.
5. ENGLAND – East Coast – Depths. – 2 reductions of depth in the Mouse Channel off the SW Barrow. NtM 137 in Week 2 notified us of one reduction of depth and a new FOUL in the same area so that is included in the image.
All chartlet images available at Notices to Mariners
1. Port of London Authority – NEAR MISS REPORTING CAMPAIGN – At the end of 2019 the PLA released a safety bulletin relating to the importance of Near Miss Reporting. This was initially released due to a downward trend in Near Misses being reported on the Thames. This trend has continued into 2020 so in support of this and Maritime Safety Week, the PLA have now released a Near Miss Safety Campaign to encourage and support better reporting of Near Misses. Chief Harbour Master Bob Baker said –“Safety is the heart of everything we do at the PLA. There is no greater priority for Near Miss Reporting.
2. Brightlingsea Harbour and River Colne. – DEPLOYMENT OF OYSTER SPAT FRAMES – NOTICE TO MARINERS: 29TH June 2020 – 30TH June 2021 – Exo Environmental Ltd. in partnership with Richard Haward’s Oysters, the University of Essex and Brightlingsea Harbour Commissioners, have scheduled to deploy Oyster Spat Frames (Figure 1) at two sites in the Brightlingsea Creek and River Colne, Essex for research purposes. The two sites are marked by a yellow guard buoy (Pic Below). The coordinates of sites are provided in Table 1 in WGS84, and the chart locations are shown in Figure 2. The Frames will be deployed for a period of up to 1 year, and all equipment will be removed at the end of the study. For further information please contact: William Coulet – Exo Environmental Ltd. M: 0770 4831 754 E: email@example.com. Alternatively the Harbour Office. The Notice has 4 images, one of the Spat Frames, One of the’yellow guard buoy’ – ho-ho, see the image and two chartlets of the positions. One is at the entrance to the Creek. See the images in the local list in the above quoted page. I shall pop over to have a look, probably tomorrow.
3. LOWESTOFT –BASCULE BRIDGE MARINE CLOSURE – Mariners and Port-Users are advised that maintenance works are scheduled for Lowestoft Bascule Bridge which will result in one overnight marine closure. This closure will run from 2000hrs until 0600hrs on the following day. Details for this closures are as follows:-Monday13/07/2020–1night. Restrictions as follows:-•Road closed to vehicles and pedestrians•No small boat openings. •Commercial vessel openings will be accommodated with a minimum of 12hrs notice at an agreed time subject to maintenance work scope. Every attempt will be made to accommodate commercial requirements, including temporary allocation of berths in the Outer Harbour area. It may be possible to accommodate small boat transits with any essential commercial vessel openings, although small boats will only be permitted to transit with a large commercial vessel if in the same direction of travel. Agents, Owners and Vessel masters are advised to bear these closures in mind when planning vessel movements in or out of the Port of Lowestoft.Please contact Lowestoft Port Control, VHF Ch14, or Tel. 01502 572286.
4. Lowestoft Harbour and Approaches –Management of Vessel Speed and Wash – Lowestoft port has in recent months experienced incidents involving excessive speeds, and/or close passing distances, within the Harbour and its approaches. These have resulted in vessel wash and/or hydrodynamic forces effecting other port users and operations. Mariners and Port Users are reminded that the maximum speed limit within the harbouris 4 knots. However, this should not be regarded as a target speed. Also, at sea the wash from a vessel can be detrimental to other users when it strikes their craft or the shoreline. Passage planning in confined waters should consider safe speed and be compliant with regulatory speed limits. During a passage the speed of the vessel should be closely monitored and adjusted as required. The effects of vessel wash, and/or the magnitude of hydrodynamic forces between vessels, will depend on a complex array of factors, including, but not limited to the following: • The speed of the passing vessel(s).• The passing distance, (with reduced distance leading togreater hydrodynamic forces).• The underkeel clearance and variations in depth, (the smaller the underkeel clearance the greater the hydrodynamic force).• The design of the vessel hull.• The relative displacement of both vessels.• The orientation of the berth to the passing vessel. Due care should be taken when passing vessels, whether in the approachesor in Harbour limits. Speed should be such to minimise the propagation of wash, whilst maintaining full control over the manoeuvrability of the vessel. Necessary reductions in speed should be made gradually and in good time as circumstances allow. Mariners are advised that it is an offence to proceed at excessive speed where damage or risk of damage may be caused by wash or displacement. Caution should be exercised when passing piers, berth/moorings, beaches, recreational activities and any other areas involving property or persons. All vessels and craft should be operated in a courteous manner with consideration being given to other mariners.
5. Port of Wells – Dredging
6. Sandwich Haven – Mariners are advised that due to the Coronovirus no annual spring checking of river marks has as yet taken place. Accordingly extra care is needed when navigating the river, especially when passing Stonar Cut where it is known that a new mud bank has formed, consequent of the Environment Agency running all six sluices during the period of the heavy rains. A temporary starboard hand buoy has been laid pending the EA removal of this obstruction.
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