MDN 81/2026

Marine site investigation works at Lung Kwu Sheung Tan - approx. eight months

Activeuntil 27 Dec 2026, 00:00 UTC (in 42 days)Received 27 Apr 2026, 00:00 UTC

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MARINE DEPARTMENT NOTICE NO. 81/2026 (Marine Works) Marine Site Investigation at Lung Kwu Sheung Tan With immediate effect and for a period of approximately eight months, marine site investigation works involving drilling of boreholes and cone penetration tests will be carried out within the area bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (A) to (E) and the adjacent shoreline: (A) 22-23.54N 113-54.98E (B) 22-23.40N 113-54.88E (C) 22-23.41N 113-54.34E (D) 22-23.59N 113-53.96E (E) 22-24.35N 113-54.09E 2. The works will be carried out by four jack-up barges, one flat-top barge and two dumb lighters. Two tugboats will provide assistance. Vessels engaged in the works will display signals as prescribed in international and local regulations. 3. A working area of approximately 50 metres around each barge and dumb lighter will be established. Yellow marker buoys fitted with yellow flashing lights will be laid to mark the positions of the anchors extending from the flat-top barge and dumb lighters. 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 0700 to 2300 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. Vessels navigating in the vicinity should proceed with caution. 6. A drawing showing the works area is attached to this Notice. This Notice supersedes Marine Department Notice No. 22/2026. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 27 April 2026 Action File Ref.: L/M. No. 3/26 in MD-PD&PS-F01-075-01A-003-P073

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Analysis

Activeuntil 27 Dec 2026, 00:00 UTC (in 42 days)

Cancelled by MDN 126/2026

Marine site investigation involving borehole drilling and cone penetration tests will be carried out at Lung Kwu Sheung Tan. Works by multiple barges, dumb lighters and tugs will begin immediately and continue for approximately eight months. A 50 metre working area around each barge/dumb lighter will be established and marked by yellow buoys and flashing lights; jack-up barges will display yellow flashing corner lights. Working hours 0700-2300 (no work on Sundays and public holidays).

Type: Survey operations · severity moderate
Feed: Survey operationsAll warnings of this kind on the map, or as an API feed.
Location: Lung Kwu Sheung Tan
Validity: From 27 Apr 2026, 00:00 UTC
Until 27 Dec 2026, 00:00 UTCWith immediate effect and for a period of approximately eight months
Activity periods: 27 Apr 2026, 07:00 UTC - 27 Dec 2026, 23:00 UTC (Daily 0700-2300 (no works on Sundays and public holidays) - times as given in notice)
Hazards: marine site investigation (drilling, cone penetration tests), jack-up barges, flat-top barge, dumb lighters, anchoring and anchor wires, marker buoys with flashing lights
Cancels: Marine Department Notice No. 22/2026

Worked out automatically from the warning text on 30 Sept 2026, 11:09 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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