pleted. Progress of work on the internal road alignment and drainage scheme at Lai Chi Kok was delayed pending a decision on the location of a second incinerator.
Maintenance and Dredging
4.34. General maintenance was carried out to piers, seawalls, break-waters, navigation markers and light beacons. The two departmental dredgers removed a total of 124,600 cu. yds. of spoil mostly from nullahs, sewer outfalls and pier approaches. They also assisted the Marine Department by dredging around harbour moorings so that these could be lifted for maintenance purposes. 'Dredging No. 1', a new 800-cubic yard self-propelled grab hopper dredger for the Department was launched in November.
4.35. The Division's divers carried out underwater inspections of seawalls, piers, pumphouses and pipelines including the new cross harbour water main and a total of 384 hours was spent underwater. The old Port Works diving barge was replaced in December by a new, more up-to-date, diving boat capable of travelling at 10 knots.
Boring and Surveys
4.36. 544 marine boreholes totalling 11,404 ft. were sunk at various sites in the Colony waters.
4.37. Hydrographic and shoreline surveys were carried out at Castle Peak Bay for the proposed New Town Development and along the shoreline of the mainland for the proposed new Castle Peak Road. Echo sounding surveys for the proposed extension to the runway at Kai Tak on behalf of the Consultants, across Rambler and Lamma Channels for proposed watermains on behalf of the Waterworks Office and for the proposed Container Terminal at Kwai Chung were also undertaken. Float tests and current meter observations were made for the proposed cross harbour tunnel and the Castle Peak New Town sewer outfalls.
ROADS AND DRAINAGE DIVISIONS
Hong Kong Island:
Kowloon
New Territories
Chief Engineers:
H. D. STEAD, M.Sc., D.I.C., A.M.I.C.E.
G. A. G. SAPSTEAD, A.M.I.C.E.
F. E. SHORT, A.M.I.C.E. (Acting)
T. K. HUM, M.Eng. (McGill), A.M.I.C.E., M.E.I.C. (Canada)
C. W. H. DALLAS, A.M.I.C.E. (Acting)
42
pleted. Progress of work on the internal road alignment and drainage scheme at Lai Chi Kok was delayed pending a decision on the location of a second incinerator.
Maintenance and Dredging
4.34. General maintenance was carried out to piers, seawalls, break- waters, navigation markers and light beacons. The two departmental dredgers removed a total of 124,600 cu. yds. of spoil mostly from nullahs, sewer outfalls and pier approaches. They also assisted the Marine Department by dredging around harbour moorings so that these could be lifted for maintenance purposes. 'Dredging No. 1' a new 800-cubic yard self-propelled grab hopper dredger for the Department was launch- ed in November.
4.35. The Division's divers carried out underwater inspections of seawalls, piers, pumphouses and pipelines including the new cross har- bour water main and a total of 384 hours was spent underwater. The old Port Works diving barge was replaced in December by a new, more up-to-date, diving boat capable of travelling at 10 knots.
Boring and Surveys
4.36. 544 marine boreholes totalling 11,404 ft. were sunk at various sites in the Colony waters.
4.37. Hydrographic and shoreline surveys were carried out at Castle Peak Bay for the proposed New Town Development and along the shore- line of the mainland for the proposed new Castle Peak Road. Echo sounding surveys for the proposed extension to the runway at Kai Tak on behalf of the Consultants, across Rambler and Lamma Channels for proposed watermains on behalf of the Waterworks Office and for the proposed Container Terminal at Kwai Chung were also undertaken. Float tests and current meter observations were made for the proposed cross harbour tunnel and the Castle Peak New Town sewer outfalls.
ROADS AND DRAINAGE DIVISIONS
Hong Kong Island:
Kowloon
New Territories
Chief Engineers:
H. D. STEAD, M.Sc., D.I.C., A.M.I.C.E.
: G. A. G. SAPSTEAD, A.M.I.C.E.
F. E. SHORT, A.M.I.C.E. (Acting)
T. K. HUM, M.Eng. (McGill), A.M.I.C.E.,
M.E.I.C. (Canada)
C. W. H. DALLAS, A.M.I.C.E. (Acting)
42
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