RAILWAY DUPLICATION AT WELLINGTON.
[BY TELEGRAPH. —OWN CORRESPONDENT.]
Wellington, Wednesday. A feature of the railway duplication work between Wellington and Petone is the use for drainage purposes of large ready-made concrete pipes. When a drain is concreted on the spot some time has to bo allowed for the concrete to set before it is filled, and before carts can pass over it. The use of the concrete pipes avoids this delay. Where considerable streams come from the hills special outlets have to be laid in concrete, but for ordinary surface drainage the pipes are being put in at intervals of about eight chains. These pipes would appear to be a saving where they are to be used within easy transit of their place of manufacture. It is doubtful whether it would be economical to send them to the Main Trunk line, nevertheless the constant delays arising from laying concrete drains at frequent intervals has been blamed for the tardy progress of that extensive undertaking.
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New Zealand Herald, Volume XLIII, Issue 13084, 25 January 1906, Page 5
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164RAILWAY DUPLICATION AT WELLINGTON. New Zealand Herald, Volume XLIII, Issue 13084, 25 January 1906, Page 5
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