MDN 38/2026

Marine site investigation with jack-up barges in Deep Bay

ActiveReceived 02 Mar 2026, 00:00 UTC

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MARINE DEPARTMENT NOTICE NO. 38/2026 (Marine Works) Marine Site Investigation at Deep Bay With immediate effect and for a period of approximately 11 months, marine site investigation works involving drilling of boreholes will be carried out within the area bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (A) to (E): (A) 22-27.93N 113-58.82E (B) 22-28.01N 113-58.71E (C) 22-28.95N 113-57.63E (D) 22-29.10N 113-57.82E (E) 22-28.13N 113-58.90E 2. The works will be carried out by three jack-up barges. One tugboat and one work boat will provide assistance. Vessels engaged in the works will display signals as prescribed in international and local regulations. 3. A working area of approximately 15 metres around each jack-up barge will be established. Yellow flashing lights will be installed at the four corners of each jack-up barge to indicate its position. 4. The hours of work will be from 0800 to 1800 hours. No works will be carried out on Sundays and public holidays. Vessels employed for the works will stay in the works area outside the hours of work. 5. Silt curtains, which are large pieces of netting to contain mud and sediments extending from the sea surface to the seabed, will be established at the works locations. Yellow marker buoys fitted with yellow flashing lights will be laid to mark the extent of the silt curtains. 6. Vessels navigating in the vicinity should proceed with caution. 7. A drawing showing the works area is attached to this Notice. This Notice supersedes Marine Department Notice No. 265/2025. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 2 March 2026 Action File Ref.: L/M. No. 45/25 in MD-PD&PS-F01-075-01A-003-P072

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Analysis

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Cancelled by MDN 61/2026

Marine site investigation works involving drilling of boreholes will be carried out in an area of Deep Bay defined by five positions. Works by three jack-up barges, one tug and one work boat will begin with immediate effect from 2 March 2026 and continue for approximately 11 months. Working hours are 0800-1800 daily (no Sundays or public holidays); a 15-metre working area around each jack-up barge will be established and marked by yellow flashing lights and yellow marker buoys with yellow flashing lights. Vessels navigating in the vicinity should proceed with caution.

Type: Survey operations · severity moderate
Feed: Survey operationsAll warnings of this kind on the map, or as an API feed.
Location: Deep Bay
Validity: From 02 Mar 2026, 00:00 UTC
With immediate effect and for a period of approximately 11 months. Hours of work 0800 to 1800 hours. No works on Sundays and public holidays.
Activity periods: ? - ? (Daily 0800-1800 (times given as written); no works on Sundays and public holidays.)
Hazards: site investigation drilling, jack-up barges, silt curtains
Cancels: Marine Department Notice No. 265/2025

Worked out automatically from the warning text on 30 Sept 2026, 11:21 UTC. It can be wrong: the official warning text is the authority.

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This warning's analysis also has:

Action for mariners
Keep-clear distance
Ships named
Lights and buoys affected
Translations
Nearby lights and rescue centres

The action for mariners, the keep-clear distance, contacts, ships named, translations and the nearby lights and rescue centres come with Lagom and every higher plan, and with the API plans. The official warning text above is always free.

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