MDN 212/2025

Marine site investigation between Chek Lap Kok and Tung Chung

No longer in forceReceived 23 Oct 2025, 00:00 UTCArchived 30 Sept 2026, 12:45 UTC

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MARINE DEPARTMENT NOTICE NO. 212/2025 (Marine Works) Marine Site Investigation between Chek Lap Kok and Tung Chung With immediate effect and for a period of approximately four months, marine site investigation works involving drilling of boreholes will be carried out at the following locations (WGS 84 Datum): (A) 22-17.60N 113-56.22E (B) 22-17.60N 113-56.22E (C) 22-17.60N 113-56.22E (D) 22-17.57N 113-56.23E (E) 22-17.57N 113-56.23E (F) 22-17.57N 113-56.23E (G) 22-17.55N 113-56.26E (H) 22-17.55N 113-56.26E (I) 22-17.55N 113-56.25E (J) 22-17.54N 113-56.29E (K) 22-17.54N 113-56.29E (L) 22-17.54N 113-56.28E 2. The works will be carried out by one jack-up barge. One tugboat and one workboat 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 the jack-up barge will be established. Yellow flashing lights will be installed at the four corners of the jack-up barge to indicate its position. 4. The hours of work will be from 0700 to 1900 hours. No works will be carried out on Sundays and public holidays. Vessels employed for the works will stay at the works locations outside the hours of work. 5. Vessels navigating in the vicinity should proceed with caution. 6. A drawing showing the works locations is attached to this Notice. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 23 October 2025 Action File Ref.: L/M. No. 36/25 in MD-PD&PS-F01-075-01A-003-P070

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Analysis

No longer in force

Marine site investigation with borehole drilling by a jack-up barge will take place between Chek Lap Kok and Tung Chung. Works commenced 23 October 2025 and are planned for approximately four months, with daily working hours 0700-1900 (no works on Sundays and public holidays). A working area of about 15 metres around the jack-up barge will be established; a tug and a workboat will assist. Yellow flashing lights will be installed at the four corners of the jack-up barge.

Type: Survey operations · severity moderate
Feed: Survey operationsAll warnings of this kind on the map, or as an API feed.
Location: Between Chek Lap Kok and Tung Chung
Validity: From 23 Oct 2025, 00:00 UTC
Until 23 Feb 2026, 23:59 UTCWith immediate effect and for a period of approximately four months. Hours of work 0700 to 1900 hours. No works on Sundays and public holidays.
Activity periods: ? - ? (daily 0700-1900 (times as given in notice), no works on Sundays and public holidays)
Hazards: jack-up barge, borehole drilling, restricted working area around barge, tug and workboat operations

Worked out automatically from the warning text on 30 Sept 2026, 11:39 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

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