MDN 22/2026

Marine site investigation at Lung Kwu Sheung Tan with multiple barges and marker buoys

ActiveReceived 04 Feb 2026, 00:00 UTC

Warning text

Positions open on the map

MARINE DEPARTMENT NOTICE NO. 22/2026 (Marine Works) Marine Site Investigation at Lung Kwu Sheung Tan With immediate effect and for a period of approximately 10 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 1900 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. Mr. S.F. WONG Director of Marine Marine Department Government of the HKSAR Date: 4 February 2026 Action File Ref.: L/M. No. 3/26 in MD-PD&PS-F01-075-01A-003-P073

Location map

Open on the full map

Analysis

Active

Cancelled by MDN 81/2026

Marine site investigation involving drilling of boreholes and cone penetration tests is taking place at Lung Kwu Sheung Tan in an area bounded by five coordinates and the adjacent shoreline. Works are carried out by jack-up barges, a flat-top barge, dumb lighters and tugboats; yellow marker buoys and flashing lights will mark anchors and barge corners. Work hours 0700-1900 daily; no works on Sundays and public holidays. A working safety zone of approximately 50 metres around each barge and dumb lighter will be established; vessels should proceed with caution.

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 04 Feb 2026, 00:00 UTC
With 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: ? - ? (Daily 0700-1900 hours (times given in notice as local time - treated as UTC in this message))
Hazards: marine site investigation, jack-up barges and anchored barges, dumb lighters and tugs, anchor cables and marker buoys

Worked out automatically from the warning text on 30 Sept 2026, 11:22 UTC. It can be wrong: the official warning text is the authority.

The whole analysis comes with Lagom

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.

See the plans

Back to Hong Kong