Page 202. Re-survey at regular intervals was also carried out at public dumps such as Cheung Sha Wan and Hung Hom Bay in order to control dumping.
203. Other miscellaneous surveys carried out were:—
(a) soundings for main sewerage schemes at Tai Kok Tsui, Wanchai and North Point for the Drainage Office.
(b) Markers for recording the movement of sand at Sha Lo Wan.
(c) General Survey of Salt Pan No. 2 at Tai O.
(d) The routine survey for leases and permits for piers in the Colony.
(e) Surveys for proposed piers in the New Territories at Kat O, Tap Mun and Ki Lung Har.
(f) Survey in Yau Tong Bay for a proposed development of the area for shipbuilding yards.
Materials Testing Laboratory
204. Once again the Laboratory increased the number of tests carried out not only for the department but also for outside firms. No less than 5,786 tests were made on the compressive strength of concrete, which included 223 tests for outside firms and 1,800 tests for Tai Lam Chung Dam. The number of cubes tested was 27% more than in the previous year.
205. Tests of the compressive strength of concrete pipes were also carried out in the Laboratory for the Drainage Office. In addition, standard tests were also performed on cement to a total of 799. Many new brands of cement which have lately been introduced into the Colony were tested.
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