TIMARU HARBOUR.
The Timaru Herald says :— Most of our readers have heard of " Parr's trench," a device hit upon by the Harbour Board's foreman for getting the shingle carried across the breakwater into sheltered water, whenever " shingle shifting " has to be adopted. Mr Parr said that if a narrow trench were cut across the top of the mole, where the running surf could reach it, the surf would sluice the shingle through as fast as it comes up to the work. Mr Parr has lately experimentedwith a trench in his model harbour, and it works capitally. In a quarter of an hour it carried through a " trench " about half an inch wide a heap of miniature shingle representing several thousands tons on the scale adopted. The trench represents one 3-J-ft wide in the breakwater.
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Bibliographic details
Star (Christchurch), Issue 5656, 29 August 1896, Page 7
Word Count
134TIMARU HARBOUR. Star (Christchurch), Issue 5656, 29 August 1896, Page 7
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