MDN 52/2026

Received: 17 Mar 2026, 00:00Updated: 14 Nov 2026, 12:50

analysis

Activeuntil 17 Jan 2027, 00:00 UTC (in 63 days)

Coastal enhancement works (flood walls) at Tseung Kwan O, multiple nearshore areas

Coastal enhancement works to construct flood walls will be carried out at five defined nearshore works areas at Tseung Kwan O. Activity is immediate from 17 March 2026 for approximately 10 months. Works use two special purpose vessels and one assisting tug, with yellow marker buoys and silt curtains; a 50 metre working area around the vessels will be established. Working hours 0700-1900 daily except Sundays and public holidays; vessels will remain in the works areas outside working hours.

Type: Offshore operations · severity moderate
Feed: Offshore works, rigs and towingAll warnings of this kind on the map (contributors), or as an API feed: /api/v2/feeds/offshore/
Location: Tseung Kwan O, Hong Kong (five nearshore works areas)
Validity: From 17 Mar 2026, 00:00 UTC
Until 17 Jan 2027, 00:00 UTCWith immediate effect and for a period of approximately 10 months. Hours of work 0700 to 1900 hours. No works on Sundays and public holidays.
Activity periods: 17 Mar 2026, 07:00 UTC - ? (daily 0700-1900 UTC except Sundays and public holidays (hours given in notice as 0700-1900))
Hazards: construction works, anchored vessels and anchors, silt curtains, marker buoys and moorings
Cancels: MDN 139/2025

Generated automatically from the warning text on 30 Sept 2026, 11:19 UTC. It can be wrong: the original warning below is the authoritative text.

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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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Keywords

Geometry refsbounded, circle_radius
Geometry phrasesbounded by, within

Message content

MARINE DEPARTMENT NOTICE NO. 52/2026 (Marine Works) Coastal Enhancement Works at Tseung Kwan O With immediate effect and for a period of approximately 10 months, coastal enhancement works involving the construction of flood walls will be carried out within the following works areas: Works Area 1: This area is bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (A) to (D) and the adjacent shoreline: (A) 22-18.08N 114-15.56E (B) 22-18.02N 114-15.56E (C) 22-18.02N 114-15.43E (D) 22-18.08N 114-15.43E Works Area 2: This area is bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (E) to (H) and the adjacent shoreline: (E) 22-18.08N 114-15.66E (F) 22-18.02N 114-15.66E (G) 22-18.02N 114-15.60E (H) 22-18.11N 114-15.60E Works Area 3: This area is bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (I) to (N) and the adjacent shoreline: (I) 22-18.09N 114-15.78E (J) 22-18.06N 114-15.79E (K) 22-18.05N 114-15.76E (L) 22-18.02N 114-15.76E (M) 22-18.02N 114-15.70E (N) 22-18.08N 114-15.70E Works Area 4: This area is bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (O) to (T) and the adjacent shoreline: (O) 22-17.90N 114-15.84E (P) 22-17.89N 114-15.81E (Q) 22-17.99N 114-15.80E (R) 22-18.01N 114-15.80E (S) 22-18.04N 114-15.81E (T) 22-18.03N 114-15.84E Works Area 5: This area is bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (U) to (X) and the adjacent shoreline: (U) 22-17.62N 114-16.00E (V) 22-17.62N 114-15.97E (W) 22-17.72N 114-15.97E (X) 22-17.72N 114-16.00E 2. The works will be carried out by two special purpose vessels. One tugboat 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 special purpose vessels will be established. Yellow marker buoys fitted with yellow flashing lights will be laid to mark the positions of the anchors extending from the special purpose vessels. 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. Vessels navigating in the vicinity should proceed with caution. 7. A drawing showing the works areas is attached to this Notice. This Notice supersedes Marine Department Notice No. 139/2025. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 17 March 2026 Action File Ref.: L/M No. 28/25 in MD-PD&PS-F01-075-01A-001A-P082

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