MDN 243/2025

SÉCURITÉ

Submarine outfall inspection works off Sham Tseng for approx two months

No longer in forceReceived 24 Nov 2025, 00:00 UTCArchived 30 Sept 2026, 12:45 UTC

Warning text

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MARINE DEPARTMENT NOTICE NO. 243/2025 (Marine Works) Submarine Outfall Inspection Works off Sham Tseng With immediate effect and for a period of approximately two months, submarine outfall inspection works will be carried out within the area bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (A) to (D): (A) 22-21.81N 114-03.90E (B) 22-21.75N 114-03.91E (C) 22-21.74N 114-03.90E (D) 22-21.81N 114-03.88E 2. The works will be carried out by one work boat. One guard 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 20 metres around the work boat will be established. Yellow marker buoys fitted with yellow flashing lights will be laid to mark the positions of the anchors extending from the work boat. 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 not stay in the works area outside the hours of work. 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. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 24 November 2025 Action File Ref.: L/M. No. 13/25 in MD-PD&PS-F01-075-01A-002-P024

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Analysis

No longer in force

Submarine outfall inspection works will be carried out off Sham Tseng within a small area defined by four WGS84 positions. Works commence with immediate effect from 24 November 2025 for approximately two months, daily 0800-1800 hours (no works on Sundays and public holidays). One work boat and one guard boat will be on site, yellow marker buoys with yellow flashing lights will mark anchor positions and a 20 metre working area will be established. Diving operations will take place from time to time; vessels should proceed with caution and keep clear at slow speed.

Type: Offshore operations · severity moderate
Feed: Offshore works, rigs and towingAll warnings of this kind on the map, or as an API feed.
Location: off Sham Tseng
Validity: From 24 Nov 2025, 00:00 UTC
Until 24 Jan 2026, 00:00 UTCWith immediate effect and for a period of approximately two months. The hours of work will be from 0800 to 1800 hours. No works on Sundays and public holidays.
Activity periods: 24 Nov 2025, 08:00 UTC - 24 Jan 2026, 18:00 UTC (Daily 0800-1800 hours (times given in notice; no works on Sundays and public holidays).)
Hazards: diving operations, work boat and guard boat, anchor lines, marker buoys with flashing lights, established 20 metre working area

Worked out automatically from the warning text on 30 Sept 2026, 11:38 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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