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- Worldwide – World Holidays: 15-28 July 2012
- Hong Kong, Hong Kong – Construction of Submarine Outfall
DATE: July 14, 2012 – COUNTRY: Worldwide – World Holidays: 15-28 July 2012
Public holidays around the world in the coming two weeks include the following: Thu 19 Jul – 1st Day of Ramadan Fri 20 Jul – Colombia Independence Day Sat 28-Sun 29 Jul – Peru Independence Day
For information about operations around the world, contact the respective GAC office. Details are available in the “Contact” section of www.gac.com
DATE: July 14, 2012 – COUNTRY: Hong Kong – PORT: Hong Kong – Construction of Submarine Outfall
For approximately 9 months, submarine outfall construction works involving dredging, erection of a temporary working platform, underground drilling and pipe laying, installation of a diffuser and removal of the temporary working platform will be carried out [at Mo Tat Wan, Lamma Island] in the area bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (A) to (H) and the adjacent shoreline:
- (A) 22º 12.506’N / 114º 08.516’E
- (B) 22º 12.741’N / 114º 08.647’E
- (C) 22º 12.777’N / 114º 08.635’E
- (D) 22º 12.933’N / 114º 08.722’E
- (E) 22º 12.896’N / 114º 08.800’E
- (F) 22º 12.740’N / 114º 08.712’E
- (G) 22º 12.728’N / 114º 08.673’E
- (H) 22º 12.493’N / 114º 08.541’E
The works will be carried out by a flotilla of vessels including three derrick barges, one split hopper barge, some tugs and guard boats. The number of vessels engaged in the works will change from time to time to suit operational requirements.
A working area of approximately 30 metres around each barge will be established. Yellow marker buoys fitted with yellow flashing lights will be laid to mark the positions of the anchors extending from the barges.
Several silt curtains, extending from the sea surface to the seabed, will be established within the works area. Each silt curtain is a large piece of netting used to contain mud and sediments. Yellow markers fitted with yellow flashing lights will be laid to mark the extent of the silt curtains.
A cable wire will be temporarily laid on the seabed along the alignment of the submarine outfall for survey purpose. The cable wire will be removed upon the completion of the submarine outfall construction works.
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.
Diving operations will be carried out from time to time during the hours of work.
Vessels engaged in the operations will display signals as prescribed in international and local regulations.
Vessels navigating in the vicinity should proceed with caution and keep clear at slow speed, bearing in mind there are divers working in the area.
(For information about operations in Hong Kong contact GAC Hong Kong at shipping.honkong@gac.com)
Source: Government of Hong Kong SAR Marine Department Notice No.105 of 2012 dated 11 July 2012
