MDN 259/2025

SÉCURITÉ

Breakwater reinstatement works at Outer Breakwater, Aberdeen South Typhoon Shelter

No longer in forceReceived 19 Dec 2025, 00:00 UTCArchived 30 Sept 2026, 12:45 UTC

Warning text

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MARINE DEPARTMENT NOTICE NO. 259/2025 (Marine Works) Breakwater Reinstatement Works along both sides of the Outer Breakwater at Aberdeen South Typhoon Shelter With immediate effect and for a period of approximately six months, breakwater reinstatement works will be carried out in the following works areas: Works Area 1: This area is bounded by straight lines joining the following coordinates (WGS 84 Datum) from (A) to (D) and the adjacent shoreline: (A) 22-14.19N 114-09.68E (B) 22-14.21N 114-09.68E (C) 22-14.21N 114-09.77E (D) 22-14.19N 114-09.77E Works Area 2: This area is bounded by straight lines joining the following coordinates (WGS 84 Datum) from (E) to (H) and the adjacent shoreline: (E) 22-14.18N 114-09.77E (F) 22-14.14N 114-09.77E (G) 22-14.14N 114-09.68E (H) 22-14.17N 114-09.68E 2. The works will be carried out by one dump lighter. One tug boat will provide assistance. Vessels engaged in the works will display signals as prescribed in international and local regulations. 3. 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 in the works areas outside the hours of work. 4. A working area of approximately 50 metres around the dump 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 dump lighter. 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 within the works areas. Yellow marker buoys fitted with yellow flashing lights will be laid to mark the extent of the silt curtains. 6. 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 areas at slow speed, bearing in mind that there are divers working in the areas. 7. A drawing showing the works areas is attached to this Notice. This Notice supersedes Marine Department Notice No. 229/2025. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 19 December 2025 Action File Ref.: L/M No. 47/25 in MD-PD&PS-F01-075-01A-001A-P088

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Analysis

No longer in force

Breakwater reinstatement works commenced 19 Dec 2025 and will continue for approximately six months in two marked works areas adjacent to the Outer Breakwater at Aberdeen South Typhoon Shelter. Works employ one dump lighter and one assisting tug, with a 50 metre working zone around the dump lighter, marker buoys with yellow flashing lights and silt curtains. Diving operations will occur from time to time during working hours 0700-1900 (no works on Sundays and public holidays). Vessels should keep clear and proceed with caution.

Type: Dredging / works · severity moderate
Feed: Offshore works, rigs and towingAll warnings of this kind on the map, or as an API feed.
Location: Outer Breakwater, Aberdeen South Typhoon Shelter
Validity: From 19 Dec 2025, 00:00 UTC
Until 19 Jun 2026, 00:00 UTCWith immediate effect and for a period of approximately six months
Activity periods: 19 Dec 2025, 07:00 UTC - 19 Jun 2026, 19:00 UTC (Daily 0700-1900 (hours of work). No works on Sundays and public holidays.)
Hazards: dump lighter and tug operations, working area with anchors, silt curtains, diving operations, marker buoys with yellow flashing lights
Cancels: Marine Department Notice No. 229/2025

Worked out automatically from the warning text on 30 Sept 2026, 11:37 UTC. It can be wrong: the official warning text is the authority.

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

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Keywordsdiving operations divers working keep clear of typhoon

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