Companies on repayment. When practicable the dredged material was transported to Kun Tong and spread over the Colony's refuse dump by pumping out the hopper barges. A total of 135,000 cubic yards was dredged during the year.
221. Routine diving inspections were carried out on the pipe lines which cross the harbour feeding water from Kowloon to Hong Kong and also on the pipelines between Ap Lei Chau and Aberdeen. Underwater obstructions to shipping in the form of small wrecks and rocks were first broken up by blasting and then removed by dredging.
New Construction
222. The Causeway Bay Reclamation Scheme which commenced in 1951 was completed this year well ahead of schedule. This project consisted of two parts—the reclamation of the old shelter to form the site for the new Recreation Park, and the provision of a new harbour of refuge to seaward of the one reclaimed.
223. The bulk of the filling material used in the reclamation was obtained by dredging sand from the adjacent seabed by means of a bucket dredger, and pumping this over the breakwater into the confines of the old typhoon shelter. The remainder of the material was spoil and debris from building sites brought to Causeway Bay by building contractors and dumped free of charge. A small amount of public dumping is still required to fill the drainage channel left on the eastern side of the reclamation to carry away storm water. The total area reclaimed is over 55 acres.
224. The new typhoon shelter, 65 acres in area, is larger than the one reclaimed. It is formed by three overlapping breakwaters, on the northern and eastern boundaries and a causeway to Kellet Island on the western boundary. The breakwaters were constructed by tipping graded quarried stone of up to one ton in size on the previously prepared sand foundations in dredged trenches, until the mound was up to approximately 4.5...