Page 30 Advertisements Column 5

Otago Witness, Issue 3593, 23 January 1923, Page 30

Four gigantic “tables” of reinforced concrete, each with 94 legs, are to be constructed in Southampton Harbour for the mooring of the world's largest floating dock, now being built on Tyneside for the London and South-western Railway Company at a cost of about £1:000,000. The contract for the construction of these “Dolphins” has been placed with A. Jackaman and Sons, reinformed concrete specialists. Slouh. Three hundred ami seventy-six piles of re inforced concrete, each 69ft long and weighing eight tons, will Ire driven 18ft into the. bed of the harbour from wooden floats anchored over the site. Many of them will be driven at a considerable angle to resist the to-and-fro movement of the 70.000 ton loaded dock. The task is further complicated by (he fact that even at low water there is 52ft of the river covering the site. Round the heads of these ndes will be constructed tiie four rectangular slabs forming the Dolphin Tops, each 70ft long, 32ft wide, and sft thick, weighing about 1000 tons. The dock will be moored to the Dolphin bj steel lattice booms 70ft long.