(12) Collection of automatic tide gauge records from North Point, Chi Ma Wan and Tai Po and preparation of an abstract of high and low tides throughout the year together with computation of the mean sea level; this data was also transmitted to the Liverpool Tidal Institute and the Admiralty Hydrographic Department.
Boring
8.23. Marine and land boring units carried out the following investigations:
(1) Marine Boring
238 boreholes totalling 6,863 feet were sunk at Hung Hom, Ma Tau Kok, Kowloon Bay, Sam Ka Tsuen, Chai Wan, North Point, Central District, West Point, Kennedy Town, Aberdeen and Lamma Island.
Vane tests were carried out in connexion with the design of foundations for breakwaters at Aberdeen Harbour and Aberdeen Channel.
(2) Sand Survey
A survey of the Colony's sand resources by the Sand Monopoly Contractor continued until the two barges were beached at Lai Chi Wo by typhoon 'Wanda' in September. Deposits totalling 7 million cubic yards were located at High Island, Long Harbour and Yim Tin Tsai.
(3) Land Boring
Surveys
48 boreholes totalling 1,165 feet were sunk at Chai Wan Road, Conduit Road, Severn Road and Kennedy Town.
8.24. The following surveys were carried out:
(1) Progress surveys in connexion with Central reclamation stages II and IV, Kwun Tong reclamation zone V sections C and D, Hung Hom reclamation stage IIB, Ma Tau Kok reclamation, To Kwa Wan reclamation, reclamation fronting K.M.L. 111 Jordan Road, Aberdeen reclamation and breakwater, Shek Kwu Chau seawall, Silver Mine Bay seawall and Kat O typhoon shelter.
(2) Setting out works and progress surveys in connexion with the construction of piers and landings at Tsim Bei Tsui, Nam Shang Wai, Shek Kwu Chau, Ping Chau (Mirs Bay), Yung Shue Wan and North Point.
(3) Echo sounding surveys for proposed dredging at western Hong Kong harbour, frontage of Ocean Terminal, Naval mooring buoy N, and Tsuen Wan.
(4) Surveys of foreshore and soundings at Tai O creek, boatyard sites at Tsing Yi Island, Ham Tin in Lantau Island, Castle Peak Road beacon, sand depot at Sha Tin, boatyard sites at Cheung Sha Wan, Yau Tong to Sam Ka Tsuen frontage, and Deep Water Bay and Repulse Bay beaches.
(5) Sounding surveys before and after dredging at Sai Kung, Tai Tam Bay, Sham Shui Po slipway, Tai Lam Chung cattle pier approach, and various nullah outfalls inside Hong Kong harbour.
46
(12) Collection of automatic tide gauge records from North Point, Chi Ma Wan and Tai Po and preparation of an abstract of high and low tides throughout the year together with computation of the mean sea level; this data was also transmitted to the Liverpool Tidal Institute and the Admiralty Hydrographic Department.
Boring
8.23. Marine and land boring units carried out the following investigations:
(1) Marine Boring
238 boreholes totalling 6,863 feet were sunk at Hung Hom, Ma Tau Kok, Kowloon Bay, Sam Ka Tsuen, Chai Wan, North Point, Central District, West Point, Kennedy Town, Aberdeen and Lamma Island.
Vane tests were carried out in connexion with the design of founda- tions for breakwaters at Aberdeen Harbour and Aberdeen Channel. (2) Sand Survey
A survey of the Colony's sand resources by the Sand Monopoly Contractor continued until the two barges were beached at Lai Chi Wo by typhoon 'Wanda' in September. Deposits totalling 7 million cubic yards were located at High Island, Long Harbour and Yim Tin Tsai.
(3) Land Boring
Surveys
48 boreholes totalling 1,165 feet were sunk at Chai Wan Road, Conduit Road, Severn Road and Kennedy Town.
8.24. The following surveys were carried out:
(1) Progress surveys in connexion with Central reclamation stages II and IV, Kwun Tong reclamation zone V sections C and D, Hung Hom reclamation stage IIB, Ma Tau Kok reclamation, To Kwa Wan rec- lamation, reclamation fronting K.M.L. 111 Jordan Road, Aberdeen reclamation and breakwater, Shek Kwu Chau seawall, Silver Mine Bay seawall and Kat O typhoon shelter.
(2) Setting out works and progress surveys in connexion with the con- struction of piers and landings at Tsim Bei Tsui, Nam Shang Wai, Shek Kwu Chau, Ping Chau (Mirs Bay), Yung Shue Wan and North Point. (3) Echo sounding surveys for proposed dredging at western Hong Kong harbour, frontage of Ocean Terminal, Naval mooring buoy N, and Tsuen Wan.
(4) Surveys of foreshore and soundings at Tai O creek, boatyard sites at Tsing Yi Island, Ham Tin in Lantau Island, Castle Peak Road beacon, sand depot at Sha Tin, boatyard sites at Cheung Sha Wan, Yau Tong to Sam Ka Tsuen frontage, and Deep Water Bay and Repulse Bay beaches.
(5) Sounding surveys before and after dredging at Sai Kung, Tai Tam Bay, Sham Shui Po slipway, Tai Lam Chung cattle pier approach, and various nullah outfalls inside Hong Kong harbour.
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