Reconstruction Works for Piers at Ma Wan Chung and Yi O

04 Apr 2025 / Hong Kong

For approximately nine months, reconstruction works for piers at Ma Wan Chung and Yi O will be carried out in 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 (K) and the adjacent shoreline:
(A) 22° 17.137’N / 113° 56.116’E
(B) 22° 17.114’N / 113° 56.109’E
(C) 22° 17.095’N / 113° 56.037’E
(D) 22° 17.155’N / 113° 55.989’E
(E) 22° 17.171’N / 113° 56.032’E
(F) 22° 17.131’N / 113° 56.064’E
(G) 22° 17.130’N / 113° 56.065’E
(H) 22° 17.140’N / 113° 56.091’E
(I) 22° 17.135’N / 113° 56.100’E
(J) 22° 17.143’N / 113° 56.107’E
(K) 22° 17.140’N / 113° 56.111’E

WORKS AREA 2
This area is bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (L) to (Q):
(L) 22° 14.367’N / 113° 51.033’E
(M) 22° 14.307’N / 113° 51.136’E
(N) 22° 14.233’N / 113° 51.139’E
(O) 22° 14.179’N / 113° 51.163’E
(P) 22° 14.142’N / 113° 51.089’E
(Q) 22° 14.229’N / 113° 50.941’E

The works will be carried out by five jack-up barges and two dumb lighters. One tug and one launch will provide assistance. Vessels engaged in the works will display signals as prescribed in international and local regulations.

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 each lighter.

Yellow flashing lights will be installed at the four corners of each jack-up barge to indicate its position.

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 flashing lights will be laid to mark the extent of the silt curtains.

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.

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.

(For information about operations in Hong Kong, contact GAC Hong Kong at [email protected])

Source: Government of the Hong Kong SAR Marine Department Notice No.63/2025

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