tillergirl
Well-Known Member
UKHO Permanent/Temporary/Preliminary Notices:
1. New Editions of ADMIRALTY Charts to be published 10 August 2023 - Chart 1606 - England - East Coast, Thames Estuary Fisherman's Gat to Princes Channel. 1:25,000; Chart 1607 - International Chart Series, England - East Coast, Thames Estuary, Southern Part. 1:50,000; Chart 1609 England - East Coast, Thames Estuary, Knock John Channel to Sea Reach. 1:25,000 - Includes significant safety-related information and changes to depths from the latest Port of London Authority surveys.
2. BELGIUM - Buoyage. - Replacement of two north cardinal buoys and their designation marking shoreline obstructions to the west of Blankenberge.
3. NETHERLANDS - Maritime limits. Buoyage. - Slight adjustment of the maritime limits to the west of Vlissingen and similar slight movement of two buoys marking the Galgeput channel.
4. ENGLAND - East Coast - Depths. - Three slight reduction of depth in the River Thames, one in the middle of the channel in Lower Hope Reach and two in the channel off Tilbury SCB. Unlikely to hinder leisure craft.
Local
1. PRINCES CHANNEL TO OAZE DEEP - SURVEY OPERATIONS - on or about 14th July 2023 survey operations will take place in the Princes, Channel, Oaze Deep and Sea Reach areas as shown on the chartlet (See at: Notices to Mariners). The survey operations will take approximately 8 days and will be carried out by the survey vessel MV PULSAR, pictured. Survey operations will involve pole mounted and towed survey equipment at a speed of approximately 4-5 knots. The vessel is fitted with operational AIS and will display the appropriate lights and shape whilst surveying. The MV PULSAR has been requested to keep clear of all vessels proceeding in the navigational channel at all times and will keep a listening on VHF channel 16/69. Further details of the survey works may be broadcast by London VTS.
2. PORT OF GREAT YARMOUTH - Temporary River Closure - notification of the third temporary closure of the river Yare, as part of the Great Yarmouth Third River Crossing.
• Closure Date: 7th August 2023: • Time: 16:00: • Duration: 72 hours: • Location: Area shown by red line boundary in image (see the above quoted webpage). Note: Pilotage and mooring services will not be provided within the boundary area during the closure period.
3. River Crouch Buoys - NAVIGATION - the following pairs of light buoys have been altered to an unsynchronized pattern. The current flash pattern remains the same:
PAIR ONE
Whitaker No.1 Lighted Buoy: 51° 40.530′ N, 001° 05.400′ E. Fl. G 5s
Whitaker No.2 Lighted Buoy: 51° 40.250′ N. 001° 05.400′ E. Fl. R 5s
PAIR TWO
Outer Crouch No.1 Lighted Buoy: 51° 38.703′ N, 000° 59.000′ E. Fl. G 5s
Outer Crouch No.2 Lighted Buoy: 51° 38.622′ N. 000° 59.200′ E. Fl. R 5s
PAIR THREE
Outer Crouch No.3 Lighted Buoy: 51° 38.103′ N. 000° 57.843′ E. Fl. G 10s
Outer Crouch No.4 Lighted Buoy: 51° 38.000′ N. 000° 58.000′ E. Fl. R 10s
4. Raysand – Buoyage and Crossing for Small Leisure Craft - NAVIGATION - Following assessment of the latest survey data in the vicinity of the Raysand and Raysand Middle buoys, slightly deeper depths of water were identified to the East of the buoys current positions. After consultation with Trinity House, the Raysand and Raysand North buoys have been re-located to reflect this information.
New position of Raysand 51º 39.84’ N. 001º 00.57’ E - Characteristic remain unchanged.
New Position of Raysand North 51º 40.81’N 001º 00.57’E - New characteristic – Special Mark-Yellow Unlighted Pillar Buoy
*Note the Raysand Middle buoy has been permanently withdrawn.
See Chartlets – NOT to be used for Navigation: Goto: Notices to Mariners – crouchharbour.uk for the downloads
Chartlet 1 NOT TO BE USED FOR NAVIGATION
Chartlet 2 NOT TO BE USED FOR NAVIGATION
The Raysand and Raysand North yellow ‘special mark’ buoys are not marking a safe-water route merely the best water available in the location for shallow draught vessels at certain states of tide.
Crossing the Raysand should only be undertaken by mariners with local knowledge after due consideration has been given to
• Rise of tide
• Weather conditions
• Passage ideally undertaken on a flood tide only
if in any doubt owners and master’s of vessel crossing to and from the River Blackwater to the River Crouch should do so via the Spitway route further to the East marked by the Swin Spitway and Whitaker Spitway light buoys.
I have updated my chartlet of the Ray Sand showing the new positions. You can download it at: Downloads (4 item)
That's all the official stuff. 'Gladys' and I did a resurvey of the Little Sunk crossing point last Monday. Despite all the winds it was lovely down there as you can see below. We can report that the Little Sunk is fine with a controlling depth of 3.2m CD in the centre. The Little Sunk knoll does have small signs of creeping to the SW but nothing to threaten for now. You can download the chartlet as above - 5th item. There is also a picture of Foulger's Gat:
Foulger's Gat by Roger Gaspar, on Flickr
It is difficult to take a photo of the Gat; close in excludes all of it, from distant is a bit...... well sort of distant. As you can see it was loveley and flat while at work. On our return, north of the Spitway it was like a corkscrew. On leaving the Little Sunk we had 1021mB, on reaching the Spitway we had 1017mB.
Hope it helps. That's it.
1. New Editions of ADMIRALTY Charts to be published 10 August 2023 - Chart 1606 - England - East Coast, Thames Estuary Fisherman's Gat to Princes Channel. 1:25,000; Chart 1607 - International Chart Series, England - East Coast, Thames Estuary, Southern Part. 1:50,000; Chart 1609 England - East Coast, Thames Estuary, Knock John Channel to Sea Reach. 1:25,000 - Includes significant safety-related information and changes to depths from the latest Port of London Authority surveys.
2. BELGIUM - Buoyage. - Replacement of two north cardinal buoys and their designation marking shoreline obstructions to the west of Blankenberge.
3. NETHERLANDS - Maritime limits. Buoyage. - Slight adjustment of the maritime limits to the west of Vlissingen and similar slight movement of two buoys marking the Galgeput channel.
4. ENGLAND - East Coast - Depths. - Three slight reduction of depth in the River Thames, one in the middle of the channel in Lower Hope Reach and two in the channel off Tilbury SCB. Unlikely to hinder leisure craft.
Local
1. PRINCES CHANNEL TO OAZE DEEP - SURVEY OPERATIONS - on or about 14th July 2023 survey operations will take place in the Princes, Channel, Oaze Deep and Sea Reach areas as shown on the chartlet (See at: Notices to Mariners). The survey operations will take approximately 8 days and will be carried out by the survey vessel MV PULSAR, pictured. Survey operations will involve pole mounted and towed survey equipment at a speed of approximately 4-5 knots. The vessel is fitted with operational AIS and will display the appropriate lights and shape whilst surveying. The MV PULSAR has been requested to keep clear of all vessels proceeding in the navigational channel at all times and will keep a listening on VHF channel 16/69. Further details of the survey works may be broadcast by London VTS.
2. PORT OF GREAT YARMOUTH - Temporary River Closure - notification of the third temporary closure of the river Yare, as part of the Great Yarmouth Third River Crossing.
• Closure Date: 7th August 2023: • Time: 16:00: • Duration: 72 hours: • Location: Area shown by red line boundary in image (see the above quoted webpage). Note: Pilotage and mooring services will not be provided within the boundary area during the closure period.
3. River Crouch Buoys - NAVIGATION - the following pairs of light buoys have been altered to an unsynchronized pattern. The current flash pattern remains the same:
PAIR ONE
Whitaker No.1 Lighted Buoy: 51° 40.530′ N, 001° 05.400′ E. Fl. G 5s
Whitaker No.2 Lighted Buoy: 51° 40.250′ N. 001° 05.400′ E. Fl. R 5s
PAIR TWO
Outer Crouch No.1 Lighted Buoy: 51° 38.703′ N, 000° 59.000′ E. Fl. G 5s
Outer Crouch No.2 Lighted Buoy: 51° 38.622′ N. 000° 59.200′ E. Fl. R 5s
PAIR THREE
Outer Crouch No.3 Lighted Buoy: 51° 38.103′ N. 000° 57.843′ E. Fl. G 10s
Outer Crouch No.4 Lighted Buoy: 51° 38.000′ N. 000° 58.000′ E. Fl. R 10s
4. Raysand – Buoyage and Crossing for Small Leisure Craft - NAVIGATION - Following assessment of the latest survey data in the vicinity of the Raysand and Raysand Middle buoys, slightly deeper depths of water were identified to the East of the buoys current positions. After consultation with Trinity House, the Raysand and Raysand North buoys have been re-located to reflect this information.
New position of Raysand 51º 39.84’ N. 001º 00.57’ E - Characteristic remain unchanged.
New Position of Raysand North 51º 40.81’N 001º 00.57’E - New characteristic – Special Mark-Yellow Unlighted Pillar Buoy
*Note the Raysand Middle buoy has been permanently withdrawn.
See Chartlets – NOT to be used for Navigation: Goto: Notices to Mariners – crouchharbour.uk for the downloads
Chartlet 1 NOT TO BE USED FOR NAVIGATION
Chartlet 2 NOT TO BE USED FOR NAVIGATION
The Raysand and Raysand North yellow ‘special mark’ buoys are not marking a safe-water route merely the best water available in the location for shallow draught vessels at certain states of tide.
Crossing the Raysand should only be undertaken by mariners with local knowledge after due consideration has been given to
• Rise of tide
• Weather conditions
• Passage ideally undertaken on a flood tide only
if in any doubt owners and master’s of vessel crossing to and from the River Blackwater to the River Crouch should do so via the Spitway route further to the East marked by the Swin Spitway and Whitaker Spitway light buoys.
I have updated my chartlet of the Ray Sand showing the new positions. You can download it at: Downloads (4 item)
That's all the official stuff. 'Gladys' and I did a resurvey of the Little Sunk crossing point last Monday. Despite all the winds it was lovely down there as you can see below. We can report that the Little Sunk is fine with a controlling depth of 3.2m CD in the centre. The Little Sunk knoll does have small signs of creeping to the SW but nothing to threaten for now. You can download the chartlet as above - 5th item. There is also a picture of Foulger's Gat:
Foulger's Gat by Roger Gaspar, on FlickrIt is difficult to take a photo of the Gat; close in excludes all of it, from distant is a bit...... well sort of distant. As you can see it was loveley and flat while at work. On our return, north of the Spitway it was like a corkscrew. On leaving the Little Sunk we had 1021mB, on reaching the Spitway we had 1017mB.
Hope it helps. That's it.