Notices to Mariners Week 39-40

Week 40

UKHO Permanent/Preliminary/Temporary Notices

1. ENGLAND – East Coast – NM Block. – New UKHO Block covering the approaches to Lowestoft. – but see the Local notice below.
2. BELGIUM – Wind turbines. Wind farm. Restricted area. – 
This notice repeats the Preliminary NtM 3093(P) earlier this year. Note the marked area of the Wind Farm is restricted.
3. FRANCE – North Coast – Anchor berths. Anchorage areas. NM Blocks. Maritime limits. – This notice provides two UKHO blocks for two specified charts and individual details (as opposed to blocks) on three other charts, all changes dealing with reorganisation of anchor berths and anchorage areas off Calais. The two UKHO blocks are useful (one illustrated, both downloadable via the button).
4. ENGLAND – South East Coast – Depths. – One reduction of depth in the SW bound lane of the Sandettie TSS. Unlikely to hinder leisure craft.
5. ENGLAND – East Coast – Buoyage. – Movement of SHB Nos 3, 5 and 7 in the Crouch Fairway.


1. Paglesham Fairway No 1 Lighted Buoy, River Roach – the Paglesham Fairway No 1 Lighted Buoy in approximate position: 51° 35.825’N, 000° 49.167’E is off station for repairs.
2. Removal of Power Cables, River Roach, Rochford – there will be a Temporary Unlit Yellow Special Marker Buoy laid on the 18th September 2020 in approximate position: 51° 34.778’N, 000° 44.546’E in conjunction with NTM No 39 of 2020 (see last week). When navigating in the area Mariners are kindly requested to proceed with extreme caution.
3. Crouch Lighted Buoy – the Crouch Lighted Buoy in approximate position: 51° 37.660’N, 000° 56.591’E is back on station.
4. LOWESTOFT APPROACHES – SHOALING NORTH EAST OF HARBOUR ENTRANCE – Mariners and Port Users are advised of an area of shoaling approx. 700 metres North East of Lowestoft Harbour entrance, approx. position 52˚ 28.4’N, 001˚ 45.9’E. Least recorded depth in this area is 3.6m below Admiralty Chart Datum. The area of shoaling is within the white occulting sector of the Port Entry Light (PEL). This light is an aid to navigation but should not be solely relied upon for an indication of vessel position. Deeper water is available in the Eastern side of the approach channel keeping within the white sectors of the approach PEL. It is planned to address this shoaling over the current dredging campaign. Depths will then be verified via a post dredge survey. Notice will be provided once depths have been restored. Mariners and Navigators are requested to navigate with caution when in Lowestoft Harbour approaches, using all means available to check and verify vessel position to ensure that the required under keel clearance is available. – Image showing position can be seen in the Temporary list (and downloaded) at: Notices to Mariners
5. Port of Wells – dredging.
6. Blakeney Harbour Entrance – Due to constantly shifting sand banks, the following changes should be noted regarding entry into Blakeney Harbour:
HARBOUR ENTRANCE STARBOARD BUOY NO: 1: Buoy now repositioned as follows: N 52° 58.942’, E 000° 58.147
Vessels entering the harbour should head SSE leaving the HJORDIS WRECK BEACON to port, and then pass close to HARBOUR ENTRANCE STARBOARD BUOYS NOs. 1 and 3A, before turning SSW and heading for buoys 4 and 5 at ‘THE GAP‘.
The safe window for entry remains 2hrs either side of HW. Vessels entering Blakeney Harbour for the first time should always phone ahead and obtain latest pilotage advice. Telephone numbers quoted in the full notice in the Temproary List.

Week 39

UKHO Permanent, Temporary, Preliminary.

1. ENGLAND – East Coast – Beacons. Lights. Fog signal. – Two new beacons on the Phoenix Jetty in Halfway Reach, River Thames instead of a light and a change of light/fog characteristics on the Quay north of Coldharbour Point in Erith Reach.
2. ENGLAND – East Coast – Light. Buoy. – Deletion of a light on the structure around the Cliffe Fort and removal of a large mooring on the south bank of Gravesend Reach, River Thames.
3. BELGIUM – Depths. – 5 new reductions of depth east of the Oost Dyck bank. At all over 13m or more, unlikely to hinder leisure craft.
4. BELGIUM – Platform. Automatic Identification System. Radar beacon. Restricted area. – A new control tower for the Belgium Rentel Wind Farm with AIS, Racon(D) and an exclusion zone.


1. River Thames – AIDS TO NAVIGATION CHANGES – The Port of London Authority, as the Local Lighthouse Authority, has consulted with Trinity House (the General Lighthouse Authority) and agreed the following changes to Aids to Navigation (AtoN). These changes will have immediate effect.
Due to the removal of the structure, the following AtoN are discontinued:
N11559 Ferry Pier West Street Lower Lighted Beacon (2.F.R vert) in position Lat. 51° 26.746′ N Long. 000° 22.114′ E: N11559 Ferry Pier West Street Lower Lighted Beacon (2.F.R vert) in position Lat. 51° 26.746′ N Long. 000° 22.114′ E
AtoN has been established on the Shellhaven M Jetty Lower. See for the image on the Temporary List on the usual page: Notices to Mariners
2. LOWESTOFT – DREDGING ACTIVITIES – dredging activities are scheduled for Lowestoft as follows: –
Grab Dredger UKD Cherry Sand – 12 days between 8th and 20th September inclusive
Trailing Suction Dredger UKD Orca – 5 days between 5th and 10th October inclusive
Plough Dredger UKD Seahorse – 5 days between 10th & 14th October inclusive
Note that the advised timings are subject to variation due to weather and other operational delays. The dredgers will be working in both Lowestoft Inner and Outer Harbour areas, also in Lowestoft Approach Channel (UKD Orca and UKD Seahorse only). They will display lights and shapes for dredging activities as prescribed in the International Regulations for Preventing Collisions at Sea. The vessels will maintain a listening watch on VHF Ch 14. Vessel movements will be co-ordinated via Lowestoft Port Control. Mariners and Port Users are requested to afford the dredgers a wide berth while they are undertaking dredging operations
3. LOWESOFT – PONTOON INSTALLATION IN TRAWL DOCK AND ASSOCIATED VESSEL MOVEMENTS – commencing on or soon after 15th September, Piling and Pontoon Installation works will commence in the Trawl Dock, South West side, as an extension onto existing pontoons. Works will be conducted under Marine Licence L/2020/00263. The works will be undertaken by Humber Workboats using vessel ‘Rebecca M’. Mobilisation for these works will take place from the end of the Hamilton Peninsular. The Rebecca M will be working during daylight hours only, with piling activities between 0900hrs and 1600hrs Monday to Friday. The vessel will monitor VHF Ch14 while operational, and Lowestoft port control will advise traffic of vessel movements/activities. Vessels are requested to provide the Rebecca M a wide berth and pass at slow speed during mobilisation from Hamilton Peninsular, and for pontoon/piling operations in the Trawl Dock. The duration of the works is not expected to exceed one week, but will be subject to weather and any operational delays. Notification will be provided once the works have been completed.
4. Port of Wells – Dredging
OSEA ISLAND, RIVER BLACKWATER – Effective September 2020 – two temporary poles are to be installed in the River Blackwater to the South of Osea Island, upriver of the Pier and adjacent to the cottage during the last week of September and removed by the second week of October2020. At this time, no Lat or Long has been provided by the contractor. Caution should be exercised when navigating this area. The poles, which form part of ongoing works in that area, will be installed at the low water Mark and will be lit at night by equi-phase green flashing lights. The poles will be clearly visible at high water. All equipment will be removed by 14th October, 2020.

Just got notified by Peel Ports (Medway):

Notice is hereby given that: An unknown obstruction has been identified to the south of the Medway secondary channel, east of No.4A navigation mark. The obstruction sits approximately 1 meter above the seabed and is located in the area marked on the chart below. Diving/survey contractors will be mobilised to ascertain the exact nature of the obstruction and further information will be promulgated in updates to this notice. Until accurate details are known mariners are requested to keep clear of this area.

If you go to: Notices to Mariners , and select the Temporary List and you can see the chartlet and download it.

While doing this I have added:

NOTICE IS HEREBY GIVEN that EGS International Ltd. will be undertaking, on behalf of the MCA and Receiver of Wreck, a detailed sonar survey of the SS Richard Montgomery wreck and have obtained permission to enter the prohibited area.
Marine operations will be running from around the 15th September 2020 with expected completion by the 27th September 2020 (weather dependant). All survey work will be carried out by the EGS Watchful (callsign MAQK4; MMSI 232006596; fitted with AIS Class A) who will be keeping a listening watch on VHF Channels 16 & 74.
‘Watchful’ will undertake a comprehensive survey of the entire wreck and the seabed within the survey area defined as a polygon bounded by the following coordinates:
51˚ 27.75604′ N 000˚ 46.71516′ E
51˚ 28.254 09 N 000˚ 46.75512′ E
51˚ 28.23601′ N 000˚ 47.47680′ E
51˚ 27.73201′ N 000˚ 47.43138′ E
The survey work will be carried out in the proximity of the wreck within the prohibited area and extend to the surrounding seabed and a section of the dredged shipping channel to the south of the wreck location.
Please be advised that during survey operations the vessel will be restricted in it’s ability to manoeuvre and other vessels are requested to pass with caution and minimise their wash. During survey operations the vessel will display the appropriate day shapes/signals and lights as required by the IRPCS

From Harwich: Bawdsey Anchorage Mariners are advised that an anchor has been lost in the southern part of the Bawdsey Anchorage in the following approximate position; 51° 57.44 N 001° 31.15 E I have added an image showing the position of the lost anchor in the Anchorage.

And from the Crouch: SAFETY
Removal of Power Cables, River Roach, Rochford

Mariners are advised that work is scheduled to commence on the 14th September 2020 to remove three redundant 33kV electricity cables which are laid across the River Roach at Rochford. The estimated duration of the works is two weeks.
When navigating in the area Mariners are kindly requested to proceed with extreme caution and to take advice from any personnel working on site.

There is a plan on the Temporary list that can be downloaded as a pdf.

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