Reclamation works for Integrated Waste Management Facilities

27 Jan 2020 / Hong Kong

For approximately 12 months, reclamation works involving laying of geotextiles and sand blankets, deep cement mixing, dredging, sand filling, and construction of seawall and breakwater will be carried out [to the southwest of Shek Kwu Chau] within the area bounded by straight lines joining the following co-ordinates (WGS 84 Datum) from (A) to (I) and the adjacent shoreline:
(A) 22 deg. 11.334’N / 113 deg. 59.462’E
(B) 22 deg. 11.149’N / 113 deg. 59.466’E
(C) 22 deg. 11.144’N / 113 deg. 59.289’E
(D) 22 deg. 11.237’N / 113 deg. 58.828’E
(E) 22 deg. 11.373’N / 113 deg. 58.744’E
(F) 22 deg. 11.491’N / 113 deg. 58.709’E
(G) 22 deg. 11.596’N / 113 deg. 58.764’E
(H) 22 deg. 11.656’N / 113 deg. 58.821’E
(I) 22 deg. 11.656’N / 113 deg. 58.942’E

Yellow marker buoys fitted with yellow flashing lights, radar reflectors and AIS will be laid at co-ordinates from (B) to (H) to mark the boundary of the works area.

The works will be carried out by a flotilla of vessels including flat top barges, jack-up barges, derrick lighters, and deep cement mixing barges at various stages. Some tugboats, guard boats and self-propelled delivery barges will provide assistance. The number and types of vessels engaged in the works will change from time to time to suit operational requirements.

A working area of approximately 50 metres around each barge and 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 barges and lighters.

Silt curtains, extending from the sea surface to the seabed, will be established within the works area. The 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.

The water depth at the areas where sand blankets are laid will be reduced by about 2.0 metres. Yellow marker buoys fitted with yellow fixed lights will be laid to mark the boundaries of such areas.

The hours of work will be round-the-clock.

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 of the works area at slow speed, bearing in mind there are divers working in the works area.

(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.20/2020

If quoting any content from Hot Port News, please cite GAC Hot Port News as the source.