Mid-Estuary Notices

Notices - Mid Estuary - Scroll down as necessary

Week 07

ENGLAND - East Coast - Superbuoy. Automatic Identification System.

Delete:

Fl(5)Y.20s and associated Automatic Identification System, AIS at 51° 55´·74N., 2° 07´·28E.

Notice 692 refers

Base image is from UKHO SNC 1406, copyright and courtesy of UKHO and Meridian Chartware.

Affects:

UKHO SNC: 1406, 1408, 1610 and 1630.

UKHO SCC: 5607.1

Imray Main Charts: C30

Deletion of the superbuoy and associated lights and AIS east of the Outer Gabbard Wind Farm.

Week 04

ENGLAND - East Coast - Depths.

Replace depth:

16.3, with depth, 15.7 at 51° 51´·24N., 1° 37´·54E.

Notice 425 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1975, 2052 and 2692.

UKHO SCC:

Imray Main Charts: C1

Imray Leisure Charts: 2000.1.

One reduction of depth on the Sunk DW channel east of the Sunk Inner mark. This is part of the constant monitoring of depths by the PLA and in consequence unlikely to hinder leisure craft as regards to the depth.

Week 03

ENGLAND - East Coast - Buoy.

Insert:

Fl(5)Y.20s W1 Waverider at 51° 52´·63N., 1° 41´·04E.

Notice 248 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 2692.

UKHO SCC: 5607.1 and 5607.2

Imray Main Charts: C1

This notice confirms the HHA local Notice No 95 of 2025 which announces the installation of a lit Yellow special Waverider buoy. The Waverider is very adjacent (100 yards NW) to the major yellow ‘Sunk W1’ lit buoy marking the NW side of the Sunk Centre.

SCROLL DOWN FOR 2025 NOTICES

Week 52

ENGLAND - East Coast - Depths.

Replace:

depth, 16.5, with depth, 16.4 at 51° 42´·11N., 1° 28´·16E.

Notice 5699 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1183 and 1975.

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Charts: 2000.1

One very slight reduction of depth in the DW channel of the Black Deep, close north east of the BDM1 special buoy. Part of the routine process monitoring the DW channel. Unlikely to hinder leisure craft.

Week 51

ENGLAND - East Coast - Automatic Identification Systems.

Insert:

Automatic Identification System, AIS, at:

1. tide gauge at 51° 30´·436N., 0° 04´·721W.

2. light at 51° 29´·861N., 0° 02´·244E.

3. tide gauge at 51° 29´·923N., 0° 02´·770E.

4. tower at 51° 27´·867N., 0° 18´·673E.

5. light at 51° 27´·391N., 0° 20´·098E.

6. light at 51° 27´·734N., 0° 29´·434E.

7. light at 51° 30´·277N., 0° 30´·310E.

8. radar tower at 51° 28´·06N., 0° 37´·74E.

9. light at 51° 30´·87N., 0° 43´·41E.

10. wind turbine at 51° 28´·37N., 1° 06´·38E.

11. light at 51° 50´·60N., 1° 16´·80E.

12. light beacon at 51° 23´·70N., 1° 22´·75E.

Notice 5647 refers

Affects:

UKHO SNC: 323, 1183, 1185, 1186 (Panel A, Canvey Island to Coalhouse Point), 1186 (Panel B, Coalhouse Point to Tilbury), 1606, 1607, 1609, 1975, 2052, 2151, 3337 and 3337 (Panel B, Thames Tidal Barrier).

UKHO SCC: 5606.4, 5606.5, 5606.7, 5606.8 5607.4. Note: This update is included in New Editions 5606.2 and 5607.2, published late 2025.

Imray Full Charts: C1 and C2

Imray Leisure Charts: 2100.1, 2100.2, 2100.3 and 2100.4.

AIS installed at 12 sites in the River Thames and Estuary. Described from the West to East:

1. At the PLA tide gauge at the Tower Pier;

2. On a mid-stream Pier of the Thames Tidal Barrier;

3. At the PLA tide gauge in the Woolwich Reach, east of the Barrier at the pier at the Thames Refinery;

4. On the shore-based tower on the Broadness Saltings (opposite Grays);

5. North side of the entrance to Tilbury Lock in Northfleet Hope, River Thames;

6. Shore-based light on the marshes east of Cliffe Foot in the Lower Hope Reach, River Thames (the ‘Havens Tanker Traffic Warning Light);

7. At the light marking the eastern end of the London Gateway quays in the Sea Reach, River Thames;

8. Shore-based at the PLA Radar Tower at Allhallows on the south bank of the River Thames at the Yantlet Flats.

9. At the light (and tidal gauge) at the eastern side of the end of the Southend Pier;

10. On the wind turbine marking the north-east limit of the Kentish Flats wind farm;

11. At the light at Walton Pier;

12. On the lit north cardinal beacon north of Margate harbour.

Week 51

EAST COAST OF ENGLAND - NORTH MIDDLE LIGHTED BUOY

Amendment:

Moved to new assigned position: Latitude 51˚ 41.351’N., Longitude 001˚ 12.617’E.

No further notice will be given.

Trinity House No 35 of 2025 refers

Affects:

UKHO SNC: 1975 and 1183.

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Charts: 2000.1

Trinity House has announced a new assigned position of the North Middle north cardinal buoy (in the East Swin). The move is so small that an image is impracticable.

Week 50

ENGLAND - East Coast - Foul.

Insert:

(12) at 51° 48´·41N., 1° 39´·00E.

Notice 5529 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1975 and 2692.

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Charts: 2000.1

A new FOUL in the Two-Way Route at the Long Sand Head. Not a place for leisure craft to anchor! There have been four previous NtMs (3310, 3706(P), 4540(P) and 5483) this year reporting reduced depths there. The image includes all the ‘activity’.

Week 50

ENGLAND - East Coast - Depths.

Insert:

depth, 7.6 at 51° 36´·06N., 1° 20´·18E. Delete depth, 7.9, close NW.

depth, 7.9, enclosed by 8m contour at 51° 36´·21N., 1° 20´·49E. Delete depth, 8, and associated 8m contour, close SW

depth, 8, enclosed by 8m contour at 51° 36´·17N., 1° 20´·38E. Delete depth, 8, and associated 8m contour, close SW.

depth, 11.4 at 51° 33´·54N., 1° 11´·20E. Delete depth, 11.7, close SW and depth, 11.5, close NE.

depth, 13.4 at 51° 33´·10N., 1° 09´·76E. Delete depth, 13.6, close NE.

Notice 5549 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1606, 1607, 1609 and 1975.

UKHO SCC: 5606.6.

Imray Full Charts: C1

Imray Leisure Charts: 2100.1

Three slight reductions of depth at the north entrance of Fisherman’s Gat and 2 just outside of the Knock John Channel (where we ought not to be). Depths at the Fisherman’s Gat are ample for leisure craft.

Week 49

Admiralty Charts to be published 18 December 2025 - New Editions of ADMIRALTY Small Craft Charts

SCC 5606.2 Southern Thames Estuary. 1:100,000

SCC 5607.2 Foulness Point to Landguard Point. 1:100,000

Week 49

ENGLAND - East Coast - Depths.

Note: This update is included in New Edition 5607.2, published late 2025.

Replace or Insert (according to chart):

depth, 10.1, with depth, 9.7, enclosed by 10m contour at 51° 48´·62N., 1° 39´·47E. Delete depth, 12.3 and depth, 10.2, close NW.

Insert:

depth, 16.8 at 51° 49´·32N., 1° 37´·08E. Delete depth, 18, close SW.

Notice 5483 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1610.1975, 2052 and 2692.

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Charts: 2000.1

Two reduction of depth, one at the Long Sand Head two-way route, the other just NE of the Trinity SCB marking the start of the Black Deep DW channel. Obviously a continuing monitoring area for the large ships, unlikely to hinder leisure craft. The image also includes depths reported by NtMs 3310, 3706(P) and 4540(P).

Week 48

ENGLAND - East Coast - Depths.

Insert:

depth, 8.3 at 51° 35´·96N., 1° 20´·33E. Delete depth, 9.6, close NE.

Notice 5296 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

UKHO SNC: 1606, 1607 and 1975

UKHO SCC: 5606.4 and 5606.5.

Imray Full Charts: C1

Imray Leisure Folios: 2100.1

New reduction of depth at the north entrance of the Fisherman’s Gat. Whilst still ample water for us (8.3m) the reduction is over a metre so is significant. Earlier this year there are been two NtM close to the same location which are included in the image provided.

Week 47

DOVER STRAIT - Depths.

Insert:

depth, 30.7 at 51° 22´·47N., 1° 58´·86E. Delete depth, 3.3, close NW.

Notice 5177 refers

Base image is from Imray chart C30 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 323.

UKHO SCC: 5607.7

Imray Full Charts: C1, C30

One reduction of depth just south of the Foxtrot 3 light ship almost due east of the North Foreland. Unlikely to hinder leisure craft.

Week 47

ENGLAND - East Coast - Depths.

Insert:

depth, 9.9, enclosed by 10m contour 51° 29´·01N., 1° 18´·77E. Delete depth, 10.4, close NW.

depth, 16.4 at 51° 28´·90N., 1° 15´·12E. Delete depth, 17.5, close NE.

Replace:

depth, 16.1, with depth 15.5 at 51° 28´·94N., 1° 15´·70E. Delete depth, 16.1, close SE

Notice 5108 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1606 and 1607.

UKHO SCC: 5606.4 and 5606.5.

Imray Full Charts: C1

Imray Leisure Folios: 2100.1

Three reductions of depth In the east side of the Princes Channel. Unlikely to hinder leisure craft.

Week 47

ENGLAND - East Coast - Buoyage.

Move:

Fl(2)G.5s Barrow No 13, from:

51° 32´·82N., 1° 03´·07E. to: 51° 32´·72N., 1° 02´·98E.

Q(9)15s SW Barrow, from: 51° 31´·95N., 0° 59´·90E. to: 51° 31´·91N., 0° 59´·83E.

Notice 5228 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1607 and 1609.

UKHO SCC: 5606.6

Imray Full Charts: C1

Imray Leisure Folios: 2100.1

This notice is confirming changes of the location of the SW Barrow WCB and the Barrow No 13 SHB originally reported earlier by Trinity House No 20 of 2025

Week 46

ENGLAND - East Coast - Fairway.

Chart 1606

Insert:

limit of fairway, pecked line, joining:

51° 29´·77N., 1° 04´·61E.

51° 29´·39N., 1° 10´·00E.

51° 29´·33N., 1° 13´·10E.

51° 29´·23N., 1° 16´·02E.

51° 29´·25N., 1° 18´·35E.

51° 28´·79N., 1° 19´·87E.

51° 29´·49N., 1° 22´·22E.

51° 30´·34N., 1° 24´·44E.

and

51° 27´·27N., 1° 25´·23E.

51° 28´·74N., 1° 18´·26E.

51° 28´·81N., 1° 13´·08E.

51° 28´·83N., 1° 09´·90E.

51° 29´·19N., 1° 06´·59E.

51° 29´·16N., 1° 04´·61E.

Chart 1607

Insert:

limit of fairway, pecked line, joining:

51° 29´·84N., 1° 03´·52E.

51° 29´·75N., 1° 04´·83E.

51° 29´·60N., 1° 07´·11E.

51° 29´·39N., 1° 10´·00E.

51° 29´·33N., 1° 13´·10E.

51° 29´·23N., 1° 16´·02E.

51° 29´·25N., 1° 18´·35E.

51° 28´·79N., 1° 19´·87E.

51° 29´·48N., 1° 22´·21E.

51° 30´·34N., 1° 24´·44E.

and

51° 27´·27N., 1° 25´·23E.

51° 28´·74N., 1° 18´·26E.

51° 28´·81N., 1° 13´·08E.

51° 28´·83N., 1° 09´·90E.

51° 29´·19N., 1° 06´·59E.

51° 29´·14N., 1° 03´·00E.

Chart 1609

Insert:

limit of fairway, pecked line, joining:

51° 29´·84N., 1° 03´·52E.

51° 29´·39N., 1° 10´·00E.

51° 29´·37N., 1° 11´·51E.

and

51° 28´·81N., 1° 11´·51E.

51° 28´·83N., 1° 09´·90E.

51° 29´·19N., 1° 06´·59E.

51° 29´·14N., 1° 03´·00E.

Notice 4992 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1606, 1607 and 1609.

UKHO SCC: 5607.7

Imray Full Charts: C1

Imray Leisure Folios: 2100.1

This NtM extends the marking which defines the Princes Channel. Previously the marking for the Channel ran from the Princes Inner yellow special buoy to Princes No 5. Now the new marking widens the south side of the west entrance to Princes No 8 and extends the marking east of Tongue Sand Tower on the north side and just short of the East Margate on the south side.

Week 43

ENGLAND - East Coast - Depths.

Insert:

depth, 8.7 at 51° 33´·40N., 1° 17´·51E. Delete depth, 9.4, close N.

depth, 6.8 at 51° 33´·33N., 1° 18´·33E. Delete depth, 7.3, close N.

depth, 6.4 at 51° 33´·29N., 1° 18´·92E. Delete depth, 7.4, close SW.

depth, 10.6 at 51° 33´·22N., 1° 19´·82E. Delete depth, 11.3, close E.

Notice 4622 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1606 and 1607. Note: This update is included in New Edition 1183, published late 2025.

UKHO SCC: 5606.6 and 5606.2

Imray Full Charts: C1

Imray Leisure Folios: 2100.1

Four reductions of depth in the North Edinburgh Channel. Still enough water for us but of course it is not buoyed. The image includes the depth change (increase to 6.5m) over the wreck in the channel reported earlier this year vide NtM 1764.

Week 43

EAST COAST OF ENGLAND - APPROACHES TO HARWICH - NORTH WEST SHIPWASH LIGHTED BUOY

Latitude 51˚ 58.980’N., Longitude 001˚ 37.012’E.

Amendment:

The red port-hand can buoy has been permanently replaced with a red pillar buoy with a red can topmark. All other characteristics remain unaltered.

No further notice will be given.

Trinity House Notice to Mariners No 30 of 2025 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 2052.

UKHO SCC: 5607.5

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

Trinity House have reported changing a change of type of buoy. This, the NW Shipwash changed from a red can to a red pillar buoy with red can topmark. Light unchanged.

Week 42

New Editions of ADMIRALTY Charts to be published 16 October 2025

SN Chart 1183 - International Chart Series, England - East Coast, Thames Estuary. 1:100,000

New Editions of ADMIRALTY Small Craft Charts to be published 30 October 2025

SC Chart 5614.1 -

A Orford Ness to Benacre Ness. 1:75,000

B Orford Ness. 1:50,000

SC Chart 5614.2 - Lowestoft to Winterton Ness. 1:75,000

SC Chart 5614.6 –

A Caister-on-Sea to Mundesley. 1:75,000

B Southwold Harbour. 1:7,500

This chart is to be deleted from the list of charts affected by Notices 4461(P)/23 and 1339(P)/25.

Week 42

ENGLAND - East Coast - Depths.

Depths less than charted exist in the vicinity of Long Sand Head. The most significant are as follows:

Depth Position

11·7m 51° 48´·89N., 1° 39´·54E.

17·9m 51° 48´·85N., 1° 38´·01E.

*12·5m 51° 48´·44N., 1° 37´·44E.

*11·5m 51° 48´·33N., 1° 38´·15E.

*13·5m 51° 48´·35N., 1° 38´·35E.

*13·4m 51° 48´·54N., 1° 38´·68E.

Mariners are advised to navigate with caution in the area. Charts will be updated when full details are available. Former Notice 3706(P)/25 is cancelled.

Notice 4540(P) refers

Base image is from Imray chart IN5036 by courtesy of Imray and Meridian Chartware

Affects:

UKHO SNC: 1975. 2052 and 2692

UKHO SCC: 5614.1

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

4 new depths in the Two-Way Route at the Long Sand Head – this part of the regular monitoring of depths. The depths are retained for the shipping so unlikely to hinder any leisure craft. The image includes some earlier depths reported this year.

Week 39

ENGLAND - East Coast - Depths.

Replace:

depth, 16, with depth, 15.8 at 51° 46´·5N., 1° 32´·0E.

Notice 4161 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1975 and 2692

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

One slight reduction of depth in the DW channel of the Black Deep just north of the SHM yellow mark. This is part of the regular monitoring of the DW channel. Unlikely to hinder leisure craft. The image includes two other reductions in the DW channel from another recent NtM.

Week 38

ENGLAND - East Coast - Depths.

Insert:

depth, 6.3 at 51° 29´·80N., 1° 04´·41E. Delete depth, 7.1, close SE.

Notice 4078 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1609

Imray Full Charts: C1

Imray Leisure Folios: 2100.2

One reduction of depth just on the north side of the Princes Channel adjacent to the Shivering Sands Towers. Unlikely to hinder leisure craft. The image includes an earlier NtM (2936/25) reduction close by.

Week 37

ENGLAND - East Coast - Depth.

Insert:

depth,16.6 at 51° 51´·15N., 1° 35´·81E.

Notice 4004 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 2692

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

One new depth as part of the regular monitoring of the Sunk/Black Deep DW channel. This east of the Sunk Inner light. Ample water for leisure craft.

Week 37

ENGLAND - East Coast - Foul.

Insert:

PA at 51° 31´·16N., 1° 31´·98E.

Notice 4009 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1183 and 1607

Imray Full Charts: C1

Imray Leisure Folios: 2100.1

A new FOUL on the eastern edge of the Tongue DW Anchorage (non-hazardous). It is marked PA so the position is approximate.

Week 36

ENGLAND - East Coast - Submarine power cables. Legends.

Charts 1185, 109, 3683 SC Charts 5606.7 and 5606.9

Insert:

submarine power cable, joining:

51° 29´·12N., 0° 51´·80E.

51° 29´·08N., 0° 51´·49E.

51° 29´·07N., 0° 50´·88E.

51° 29´·08N., 0° 50´·75E.

51° 29´·08N., 0° 50´·65E.

Delete:

former submarine power cable, joining:

51° 29´·12N., 0° 51´·80E.

51° 29´·11N., 0° 51´·50E.

51° 29´·11N., 0° 50´·95E.

51° 29´·08N., 0° 50´·65E.

legend, Under Construction, centred on:

51° 28´·97N., 0° 53´·91E., and

51° 28´·81N., 0° 45´·34E.

Chart 1606

Delete:

legend, Under Construction, centred on:

51° 31´·23N., 1° 05´·35E.

51° 32´·54N., 1° 09´·34E.

51° 34´·40N., 1° 15´·71E.

51° 36´·44N., 1° 20´·36E.

Chart 1607

Insert submarine power cable, , joining:

51° 29´·07N., 0° 59´·20E.

51° 28´·99N., 0° 58´·76E.

51° 28´·85N., 0° 58´·15E.

Delete former submarine power cable, , joining:

51° 29´·07N., 0° 59´·20E.

51° 28´·91N., 0° 58´·56E.

51° 28´·85N., 0° 58´·15E.

legend, Under Construction, centred on:

51° 29´·10N., 0° 53´·15E.

51° 30´·63N., 1° 03´·66E.

51° 35´·79N., 1° 18´·36E.

Notice 3722 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1185, 1606, 1607, 1609 and 3683.

UKHO SSC: 5606.7 and 5606.9

Note: Charts 1185, 5606_7 and 5606_9 are to be deleted from the list of charts affected by Notice 4461(P)/23.

Imray Full Charts: C1

Imray Leisure Folios: 2100.2

This is a long NtM amending SN and SC charts correcting the exact positions of parts of the BritNed power cable. Two areas are amended, one on the eastern ‘tail’ of the Nore Sand, the other north of the Red Sand Towers. In those locations, unlikely to hinder leisure craft.

Week 36

ENGLAND - East Coast - Depths. Wreck. Obstruction.

Insert:

at 51° 52´·19N., 1° 35´·47E. Delete close N.

depth, 17.7, and extend 20m contour S to enclose 51° 52´·04N., 1° 36´·02E. Delete depth, 18.1, close NW.

depth, 16.9, and extend 20m contour S to enclose 51° 52´·29N., 1° 35´·99E.

depth, 16.7 at 51° 52´·02N., 1° 35´·32E. Delete depth, 17.4, close NE.

depth, 18.2, and extend 20m contour S to enclose 51° 51´·80N., 1° 36´·36E. Delete depth, 19.3, close W.

Notice 3745 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 2052 and 2692.

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

Four reductions of depth and an ‘Obstn’ redefined as a wreck south-east of the S. Shipwash south cardinal buoy. None likely to hinder leisure craft.

Week 35

ENGLAND - East Coast - Depths.

Depths less than charted exist in the vicinity of Long Sand Head. The most significant are as follows:

Depth Position

11·7m 51° 48´·89N., 1° 39´·54E.

17·9m 51° 48´·85N., 1° 38´·01E.

Mariners are advised to navigate with caution in the area. Charts will be updated when surveying activities are complete.

Notice 3706(P) refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1975, 2052 and 2692.

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

A preliminary notice: two revised depths in the Two-Way Route at the Long Sand Head. Ample depths for leisure craft. The image includes an earlier reduction of depth in the area vide NtM 3310/25 in week 31.

Week 33

EAST COAST OF ENGLAND - THAMES ESTUARY

MOUSE CHANNEL/BARROW DEEP - South West Barrow and Barrow No. 13 Lighted Buoys

Amendment:

South West Barrow Lighted Buoy

Moved to Latitude 51° 31.910’N., Longitude 000° 59.830’E.

Barrow No. 13 Lighted Buoy

Moved to Latitude 51° 32.760’N., Longitude 001° 03.000’E.

Movements effected consequent upon a recent survey. No further notice will be given.

Notice Trinity House No 20 refers

Base image is from Imray chart ON5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC:1607 and 1609..

UKHO SSC: 5606.5

Imray Full Charts: C1

Imray Leisure Folios: 2100.3

Trinity House have informed us that the SW Barrow cardinal buoy and the Barrow No 13 have been moved; each has been moved to the southwest.

Week 32

ENGLAND - East Coast - Depths.

Insert:

depth, 16 at 51° 34´·52N., 1° 14´·42E. Delete depth, 16.3, close NE.

Notice 3384 refers

Base image is from Imray chart ON5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1606, 1607 and 1975.

UKHO SSC: 5606.6

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

One slight reduction of depth right in the middle of the Black Deep DW channel – part of the PLA regular monitoring of the DW channel – this midway twixt the paired Black Deep No 9/10 and 11/12. Unlikely to hinder leisure craft.

Week 32

ENGLAND - East Coast - Depths.

Replace:

depth, 16.1, with depth, 16 at 51° 45´·87N., 1° 31´·54E.

depth, 16, with depth, 15.8 at 51° 44´·83N., 1° 30´·56E.

Notice 3412 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1975 and 2692.

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

Continued monitoring of the Black Deep DW channel; two slight reductions of depth amending NtM 868 earlier this year, one adjacent to the SHM yellow special buoy, the other midway between Black Deep Nos 1 and 2 on the DW centre. Unlikely to hinder leisure craft.

Week 31

ENGLAND - East Coast - Depths.

Insert:

depth, 11.8 at 51° 48´·94N., 1° 39´·35E. Delete depth, 11.9, close NW

depth, 16.6 at 51° 51´·13N., 1° 36´·21E.

depth, 16.4 at 51° 50´·03N., 1° 34´·00E.

depth 16.4 at 51° 48´·93N., 1° 33´·35E. Delete depth, 16.5, close E.

Notice 3310 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1975, 2052 and 2692.

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

Four reduction of depth (three of which are very slight). One in the Long Sunk Head Two-Way, two slight reductions on the Black Deep DW line and the third slight reduction close to the Sunk Inner float. This is for the regular monitoring of depths for shipping in that area. Unlikely to hinder leisure craft.

Week 30

ENGLAND - East Coast - Depths.

Insert:

depth, 8, enclosed by 8m contour at 51° 36´·11N., 1° 20´·31E. Delete depth, 8.2, close NW.

Replace:

depth, 8.3, with depth, 8, enclosed by 8m contour at 51° 36´·21N., 1° 20´·45E.

Notice 3174 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1606, 1607 and 1975.

Imray Full Charts: C1

Two slight reductions of depth at the northern entrance of Fisherman’s Gat. Unlikely to hinder leisure craft. The image includes a third reduction of depth adjacent which had been reported vide NtM 2081 earlier this year.

Week 28

ENGLAND - East Coast - Depths. Obstruction.

Insert:

depth, 7.2 at 51° 29´·39N., 1° 06´·64E. Delete depth, 7.6, close W.

depth, 8 at 51° 29´·73N., 1° 04´·41E. Delete depth, 8.1, close E.

Replace:

with at 51° 29´·31N., 1° 03´·00E.

Notice 2936 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1606, 1607 and 1609

UKHO SCC: 5606.5

Imray Full Charts: C1

Imray Leisure Folios: 2100.2

Three reductions of depth in and around the Princes Channel, one north of the Princes No 6, a second south of the Shivering Sand South. The third is over an ‘obstn’ by Princes No 8 (the Imray chart is correct). Ample depth for us.

Week 27

ENGLAND - East Coast - Depth information.

Recent survey information has shown that depths less than charted exist SE of South Ship Head. The most significant is 16·9m in position 51° 52´·29N., 1° 35´·99E.

Mariners are advised to navigate with caution in the area. Charts will be updated when surveying activities are complete.

Notice 2888(P) refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 2052 and 2692

UKHO SCC:

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

A preliminary notice announcing a new depth south of the South Shipwash south cardinal buoy (the big ship channel from the Sunk to Felixstowe). Unlikely to hinder leisure craft.

Week 26

ENGLAND - East Coast - Depths.

Insert:

depth, 8.4 at 51° 48´·21N., 1° 38´·15E. Delete depth, 8.5, close S and depth, 9.7, close NW.

Notice 2670 refers

Base image is by CTTE.

Affects:

UKHO SNC: 1975 and 2692.

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

One reduction of depth at the Long Sand Head just south of the Longsand Head north cardinal buoy. Unlikely to hinder leisure craft. The image is drawn by CTTE and includes 2024 reductions at the Long Sand Head.

Week 24

ENGLAND - Thames Estuary - Depths. Drying height.

Insert:

depth, 6 at 51° 32´·74N., 1° 05´·09E. Delete depth, 6.8, close NW.

drying height, 0.3, enclosed by 0m low water line at 51° 32´·43N., 1° 01´·51E. Delete depth, 0.7, close SW and depth, 1.6, close NE.

depth, 5, and extend 5m contour S to enclose 51° 31´·99N., 1° 00´·17E. Delete depth, 5.3, close SW.

Replace:

depth, 6.9, with depth, 6.2 at 51° 32´·67N., 1° 04´·97E.

Notice 2493 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1606, 1607 and 1609.

UKHO SCC: 5606.5

Imray Full Charts: C1

Imray Leisure Folios: 2100.3

Four reductions of depth, two close east of the Alice danger buoy (but unlikely to hinder leisure craft), one just south the SW Barrow west cardinal buoy and a new drying height on the tail of the SW Barrow sand. Do not cut across the tail of the SW Barrow without being aware of the height of tide.

Week 20

ENGLAND - East Coast - Depths.

Insert:

depth, 7.9 and extend 8m contour W to enclose 51° 36´·25N., 1° 20´·56E. Delete depth, 8, close E.

Notice 2081 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1606, 1607 and 1975.

Imray Full Charts: C1

Imray Leisure Charts: 2100.1 and 2000.1.

One very slight reduction of depth right in the centre of the northern entrance of Fisherman’s Gat, south of the No 8 west cardinal buoy. Not likely to hinder leisure craft.

Week 19

ENGLAND - East Coast - Obstruction. Depths.

Insert:

at 51° 29´·27N., 1° 09´·65E. Delete depth 9.1, close NE.

depth, 8 at 51° 29´·36N., 1° 08´·99E. Delete depth, 8.2, close N.

depth, 7.9 at 51° 29´·37N., 1° 08´·73E. Delete depth, 8.2, close W.

Notice 1893 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1606, 1607 and 1609.

UKHO SCC: 5606.5.

Imray Full Charts: C1

Imray Leisure Charts: 2100.1

Two slight reductions of depth and one new obstruction in the Princes Channel between the Princes Mid and No 5. Unlikely to hinder leisure craft.

Week 17

ENGLAND - East Coast - Wrecks.

Replace:

Wk with Wk at 51° 33´·30N., 1° 19´·74E.

Notice 1764 refers

Base image is from Imray chart IN5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1606 and 1607.

UKHO SCC: 5606.2.

Imray Full Charts: C1

Imray Leisure Charts: 2100.1

Revised depth in the centre of the North Edinburgh Channel: now swept at 6.5m so unlikely to hinder leisure craft’s progress. But of course the North Edinburgh Channel has no buoyage.

Week 13

ENGLAND - East Coast - Works. Submarine cable.

Submarine cable laying works are taking place between East Anglia Three Offshore Wind Farm and a site NE of Felixstowe, along a line joining the following positions:

52° 00´·02N., 1° 25´·40E.

51° 59´·62N., 1° 26´·45E.

52° 00´·39N., 1° 31´·01E.

52° 04´·18N., 1° 37´·24E.

52° 05´·33N., 1° 43´·47E.

52° 07´·88N., 1° 49´·56E.

52° 13´·38N., 2° 18´·29E.

52° 13´·70N., 2° 26´·10E.

52° 17´·77N., 2° 26´·96E.

52° 20´·82N., 2° 30´·40E.

52° 20´·88N., 2° 34´·48E.

52° 27´·14N., 2° 35´·84E.

52° 27´·62N., 2° 44´·99E.

52° 38´·93N., 2° 45´·08E.

52° 40´·24N., 2° 51´·74E.

Charts will be updated when works are complete. Mariners are advised to navigate with caution in the area.

Notice 1353(P) refers

Affects:

UKHO SNC: 1406, 1408, 1504, 1543, 1610, 1630, 1631, 2052, 2182A and 2693.

UKHO SCC: 5607.5, 5614.1 and 5614.25.

Imray Full Charts: C30

Imray Leisure Folios: 2110.2

This preliminary notice advertises the route for the power cable out from just NE of the Deben to the East Anglia Three Offshore Wind Farm. This is associated with the following preliminary notice of the marking of the Wind Farm perimeter. The Image illustrates the route and the location and general marking of the Wind Farm. The following notice shows the detail and characteristics of WF marking.

Week 13

ENGLAND - East Coast - Wind farm. Works. Buoyage. Restricted area.

*Construction of the East Anglia Three Offshore Wind Farm is taking place in the vicinity of position 52° 40´·24N., 2° 51´·74E. The main Wind Farm Array work area is marked by light-buoys in the following positions:

Buoy Type Characteristic Position

West Cardinal Q(9)15s 52° 31´·81N., 2° 45´·15E.

Special Mark Fl.Y.5s 52° 34´·64N., 2° 44´·90E.

West Cardinal VQ(9)10s 52° 37´·47N., 2° 44´·87E.

Special Mark Fl.Y.5s 52° 40´·30N., 2° 44´·85E.

West Cardinal Q(9)15s 52° 43´·12N., 2° 45´·09E.

Special Mark Fl.Y.5s 52° 44´·64N., 2° 47´·48E.

North Cardinal Q 52° 45´·50N., 2° 50´·96E.

Special Mark Fl.Y.5s 52° 45´·71N., 2° 55´·56E.

North Cardinal VQ 52° 45´·92N., 3° 00´·15E.

East Cardinal Q(3)10s 52° 43´·69N., 3° 00´·75E.

Special Mark Fl.Y.5s 52° 40´·79N., 2° 59´·02E.

East Cardinal VQ(3)5s 52° 38´·17N., 2° 56´·53E.

Special Mark Fl.Y.5s 52° 35´·54N., 2° 54´·04E.

East Cardinal Q(3)10s 52° 32´·92N., 2° 51´·56E.

South Cardinal VQ(6)+LFl.10s 52° 31´·15N., 2° 48´·25E.

All vessels should navigate with caution in the area. A safety zone of 500 metres becomes operational around the turbines under construction.

*Former Notice 4802(P)/24 is cancelled.

*Indicates new or revised entry

Notice 1354(P) refers

Base image is from Imray chart C2110.2 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1504 *These changes will be included in a New Edition of Chart 1504 to be published mid 2025. *Charts 1408, 1631, 2182A and 5614_25 will be updated by Notice to Mariners.

This preliminary notice repeats Notice 4802(P) of 2024 which announces the new buoyage marking out the construction area for the East Anglia Three Offshore Wind Farm which will commence later this year. The area is outside of the area which I monitor but I have provided images showing ‘context’ and the buoy ‘map’. While under construction 500m safety zones (aka exclusion zones) will be placed around turbines sites.

The power lines are intended to come ashore about 1.4nm north of the Deben at Bawdsey.

Subsequent notices will report when the buoys have been placed.

Week 12

ENGLAND - East Coast - Obstructions. Buoy.

Insert:

Unexploded Ordnances (2024) at:

51° 29´·01N., 0° 49´·20E.

51° 28´·72N., 0° 44´·63E.

51° 28´·71N., 0° 44´·40E.

51° 30´·11N., 1° 02´·41E.

51° 28´·71N., 0° 56´·60E.

51° 28´·72N., 0° 56´·41E.

51° 28´·80N., 0° 55´·11E.

at 51° 28´·67N., 0° 44´·15E.

Notice 1295 refers

Base images are from Imray chart IN5037 and 5043 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1185, 1609 and 3683. Note: Former Notice 2704(T)/24 is cancelled. This update is included in New Edition 1607, published early 2024.

UKHO SCC: 5606.7, 5606.9 and 5606.5

Imray Full Charts: C1

Imray Leisure Folios: 2100.2

Last year, following survey work for a new cable laying, unexploded ordnance was discovered – almost a single line of ordnance - from the Oaze to the Nore Sand. The Port of London Authority reported the ordnance by local notice. Now this notice is showing the ordnance as an established hazard. The Mid Swatch SHB is now back in its previous established position.

Week 10

New Editions of ADMIRALTY Charts to be published on 20th March, 2025

SN Chart 1607 International Chart Series, England - East Coast, Thames Estuary, Southern Part. 1:50,000

SN Chart 1975 England - East Coast, Thames Estuary, Northern Part. 1:50,000

SN Chart 2052 International Chart Series, England - East Coast, Orford Ness to The Naze. 1:50,000

SN Chart 2692 England - East Coast, Sunk Inner Precautionary Area. 1:25,000

Charts 1607 and 1975 are important charts for us as these are followd by the echart makers.

Week 8

ENGLAND - East Coast - Depths.

Insert:

depth, 16 at 51° 44´·32N., 1° 30´·29E. Delete depth, 15.8, close SE.

depth, 16.7 at 51° 50´·37N., 1° 34´·20E. Delete depth, 17, close S or 16.9 there

depth, 16 at 51° 44´·84N., 1° 30´·55E. Delete depth, 15.8, close NE.

depth, 15.7 at 51° 49´·02N., 1° 33´·23E. Delete depth, 15.9, close SE.

Replace:

depth, 15.9, with depth, 16.1 at 51° 45´·87N., 1° 31´·53E.

Notice 868 refers

Base image is from Imray Chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1975, 2052 and 2692.

UKHO SCC: 5607.2

Imray Full Charts: C1

Imray Leisure Folios: 2000.1

Five adjustments of depths on the Black Deep DW channel between the Sunk Inner and the Black Deep No 2. The PLA constantly monitor depths there for the biggest container ships so the depth is never going to hinder use. Note that we need permission from the PLA to be in the Black Deep.

Week 4

ENGLAND - East Coast - Depths. Drying heights.

Insert:

drying height, 0.2, and extend 0m low water line NE to enclose 51° 47´·82N., 1° 37´·14E. Delete depth, 0.7, close NE and depth, 0.5 or 0.4, close SW.

depth, 13.2 at 51° 48´·80N., 1° 35´·99E. Delete depth, 13.7, close NW.

drying height, 0.2, and extend 0m low water line NE to enclose 51° 47´·71N., 1° 36´·95E. Delete depth, 0.3, close SW.

Replace:

depth, 13.3, with depth, 12.8 at 51° 48´·91N., 1° 36´·16E.

Notice 349 refers

Base image is from Imray chart C1 by courtesy of Imray and Meridian Chartware.

Affects:

UKHO SNC: 1183, 1610, 1975, 2052 and 2692.

UKHO SCC: 5607.2.

Imray Full Charts: C1

Imray Leisure Charts: 2100.1 and 2000.1

Two new drying heights on the northeast tail of the Long Sand Head and one reduced depths close by the Trinity south cardinal buoy on the Deep Water channel.

It should remain prudent not to cut over the end of the tail of the Long Sand Head as it continues slowly to extend to the northeast.