MDN 262/2025

SÉCURITÉ

Marine works (hydrographic survey, seawall and breakwater) southwest of Shek Kwu Chau

Activeuntil 22 Dec 2026, 00:00 UTC (in 37 days)Received 22 Dec 2025, 00:00 UTC

Warning text

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MARINE DEPARTMENT NOTICE NO. 262/2025 (Marine Works) Marine Works to the Southwest of Shek Kwu Chau for the Integrated Waste Management Facilities With immediate effect and for a period of approximately 12 months, marine works involving hydrographic survey, and construction of seawall and breakwater will be carried out within the area bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (A) to (I) and the adjacent shoreline: (A) 22-11.33N 113-59.46E (B) 22-11.15N 113-59.47E (C) 22-11.14N 113-59.29E (D) 22-11.24N 113-58.83E (E) 22-11.37N 113-58.74E (F) 22-11.49N 113-58.71E (G) 22-11.60N 113-58.76E (H) 22-11.66N 113-58.82E (I) 22-11.66N 113-58.94E 2. The works will be carried out by a flotilla of vessels including flat top barges, derrick lighters, and special purpose vessels at various stages. Some tugboats, guard boats and self-propelled delivery barges will provide assistance. The number of vessels engaged in the works will change from time to time to suit operational requirements. Vessels engaged in the works will display signals as prescribed in international and local regulations. 3. The hours of work will be round-the-clock. A working area of approximately 50 metres around each working vessel will be established. Yellow marker buoys fitted with yellow flashing lights will be laid to mark the positions of the anchors extending from the working vessels. 4. Silt curtains, which are large pieces of netting to contain mud and sediments extending from the sea surface to the seabed, will be established within the works area. Yellow marker buoys fitted with yellow flashing lights will be laid to mark the extent of the silt curtains. 5. Diving operations will be carried out from time to time during the hours of work. Vessels navigating in the vicinity should proceed with caution and keep clear of the works area at slow speed, bearing in mind that there are divers working in the area. 6. A drawing showing the works area is attached to this Notice. This Notice is an extension of Marine Department Notice No. 3/2024. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 22 December 2025 Action File Ref.: L/M No. 1/20 in MD-PD&PS-F01-075-01A-003-P010

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Analysis

Activeuntil 22 Dec 2026, 00:00 UTC (in 37 days)

Marine works including hydrographic survey, seawall and breakwater construction are underway in an area southwest of Shek Kwu Chau. Works began with immediate effect from 22 December 2025 and will continue for approximately 12 months. A flotilla of barges, derrick lighters, tugs and guard boats will operate round-the-clock; diving operations, silt curtains and yellow marker buoys with yellow flashing lights will be present. Vessels should keep clear, proceed with caution and transit at slow speed near the works area.

Type: Offshore operations · severity moderate
Feed: Offshore works, rigs and towingAll warnings of this kind on the map, or as an API feed.
Location: Southwest of Shek Kwu Chau (area bounded by points A to I and adjacent shoreline)
Validity: From 22 Dec 2025, 00:00 UTC
Until 22 Dec 2026, 00:00 UTCWith immediate effect and for a period of approximately 12 months
Activity periods: 22 Dec 2025, 00:00 UTC - 22 Dec 2026, 00:00 UTC (Works carried out round-the-clock during this period; diving operations from time to time)
Hazards: construction works, hydrographic survey operations, diving operations, silt curtains, anchoring and moored working vessels, marker buoys with lights

Worked out automatically from the warning text on 30 Sept 2026, 11:30 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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Keywordsdiving operations divers working keep clear of

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