Chartlets and other downloads

There are eleven downloads currently available:

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SW Sunk 2023 V1.jpg

The South-West Sunk swatchway


Revised 21st June, 2023


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See the 2021 video showing the tide rip.  Note, if you follow the recommended wpts, you will be well clear and probably would be not be there at that state of the tide anyway.

The SW Sunk was re-surveyed on  21st June, 2023. The swatchway remains well established albeit the SW Knoll has edged north and eastward a little bit more.  

Unfortunately I noticed part of a wreck, obstruction or other debris on the north side of the swatchway.  At that area, depths had increased 0.5m to 1.0m so that might have exposed  the object.  Unfortunately I cannot estimate the depth clearance over the object.

The location is shown on the chartlet.  Note that the object is about 185m north of the track between wpts 6b and 6c. which is about the same distance south to the SW knoll so zero XTE on that track is important.

If any additional information becomes available I shall of course make it available.

The preparation of the chartlet was kindly provided tide data from the Port of London Authority which assisted in reduction to Chart Datum.

Note: As before to the north-east, the Middle Sunk knoll is a quite gentle slope up.  However, the knoll to the south-west has a very steep edge and should be avoided.  Holding the rhumbline between the West and Mid waypoints is important.  On the flood it was clear the tide followed the 'bed' of the swatchway from the East to the West and at the west end the flood tide meets the flood down from the Barrow Deep.  That provokes an interesting tide rip in the face of the knoll.  I noted where the two 'tides' met whilst not difficult, we needed more concentration to steer straight.  I stress it was not difficult and this only  happens in the second half of the flood tide.  If you use my tables and seek the shortest passage times, you would never arrive at the swatch at the time when the tide rip would occur.

CHA30 of 2022+.jpg

The revised Outer Crouch buoyage July 2022


Revised 15th June, 2021 and then18th July, 2022

NEW 2022

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Following the annual maintenance round, the Crouch Harbour Authority has altered the buoyage in the Swallowtail and Whitaker channels in June, 2021.  Effectively the overall arrangement for the buoyage remains as before except that three buoys have been withdrawn and some positions, light characteristics and names have been amended.

Subsequently, following a survey by the Port of London Authority, the CHA has moved the Swallowtail W to the west.

All moves incorporated in the chartlet

Spitway 2022 download page 1.jpg

The Spitway


Redrawn chartlet May, 2022

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This is a CTTE chartlet based upon resurvey on 30th May 2022.  Compared to 2021 there has been no significant changes over the past year.  Best water remains to the east of the Safe Water Buoys.

The transit details in page 2 have been corrected (04/04/23) courtesy of a reader.  Apologies.

Ray Sand 2023 Download V2.jpg

The Ray Sand

NEW 2023

Revised Ray Sand buoyage July, 2023

Extended chartlet (east side)

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We completed two surveys in August and September and the new chartlet has available. However, 0n 13th July, the Crouch Harbour Authority notified changes to the Ray Sand buoyage.

The Ray Sand buoy is re-located at 51.39'.84N, 001.00'.57E and the Ray Sand North (the Ray North) buoy is changed to an unlighted Yellow  Special Mark Pillar Buoy at 51.40'.81N, 001.00'.57E.

The chartlet has been changed to reflect the buoyage.

If wished, click on the image for the jpg version.

Little Sunk 2023 Download V1.png

The Little Sunk

Adjacent to the Barrow No 2 PHB

NEW 2023

Surveyed on 10th July, 2023

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This is a CTTE chartlet based upon a survey conducted on 10th July, 2023.  The Little Sunk (discussed on Page 24, 3rd Edition) is is usually a stable  crossing place and  it remains so in 2023.  Arguably it has lost 0.2m of depth but it has a controlling depth of 3.2m in the centre.

The crossing area is bounded by two wrecks to the south-west and the wreckage of the old 'Little Sunk' Beacon to the north-east.  All hazards are physically unmarked but there is ample room assuming a valid GPS signal over sand.

Foulger's Gat v2.jpg

Foulger's Gat


Click on the image to download the jpg.

While we were ‘criss-crossing’ over the Little Sunk I took the image of Foulger’s Gat.  Images of Foulger’s Gat at water level is quite difficult.  Close-to the Gat cannot be fully included, if it can be included, the camera is too far away.

For this image (and the technical), the camera is on the Little Sunk and was 3.067nM from the Long Sand Inner Safe Water Buoy, bearing 175°(T), Turbines A12 is 6.742nM from the camera.  Obvious the Long Sand Middle could not be visible.  The camera was pointed at 174°(T).

London Array Foulger's Gat 2019.jpg

The London Array Wind Farm and Foulger's Gat

Amended 28.01.2015

No subsequent changes up to July. 2023.

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This is CTTE’s image of the route through the London Array Windfarm .

Quarters Drawing 2019 Buoyage revision Mersea and Tollesbury Routes V2.jpg

Mersea Quarters

Buoyage as August, 2019

(Tollesbury No 4 now placed back)

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This is a CTTE chartlet based upon a survey completed during October, 2016.

Changes to depth across the Quarters has required a change to the buoyage which was re-laid in April, 2017.

Deep draught yachts (i.e. @2m draught) is recommended to follow the suggested route at LWS. Note this has been amended this month (May) to show the 'Obstn' SW of the Nass Beacon is not now annotated as ED.  It DOES exist and should be regarded as dangerous to leisure craft.

Tollesbury North and South Channels V2 2019.jpg

Tollesbury North and South Channels

Revised (2) August, 2019

(Tollesbury No 4 now placed back)

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This is a CTTE Chartlet based upon surveys in 2011 and 2012.

This includes the repositioning of buoys during 2019.

Leavings Final V1 2014.jpg

Tollesbury - the Leavings

Revised September, 2015

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This is a CTTE Chartlet based upon surveys in 2011 and 2012 with corrections to 2015.

Bradwell 2020 all data compromise V3.jpg

Bradwell Creek

New chart 2020

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Re-surveyed on 21st July, 2020 and redrawn.

The chartlet is drawn to Chart Datum.

I have  just added a table of Tidal Height predictions at Bradwell Creek which I hope will assist new visitors.

When printed the chartlet is best in A3  size.  It is difficult to include all the detail in A4.  None is omitted so it will be quite small.  Of course as a PDF or JPG it can be enlarged as you wish.

Lawling Creek 2014.jpg

Lawling Creek

Revised September, 2014

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This is a CTTE chartlet based upon surveys in 2011 and 2014.  It includes the additional buoyage put in by Maldon District Council for 2012.

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