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The Pamphlet Collection of Sir Robert Stout: Volume 62

Cost of Dredging

Cost of Dredging.

Under this proposition the total amount of dredging to be done would apparently be about 314,000 cubic yards, and the cost would be about £14,500. It is found, howevsr, that when the hard surface is removed the effect of floods is to scour away the sand and small gravel, so that a portion of the above estimated quantity will probably be removed by scour.

Your Engineer is at present dredging a channel along the berthage of staiths and wharf, which is to be 18 feet deep at l.w. for a width of 70 feet from the line of the wharves, and 10 feet deep for a width of 210 feet from the line of wharves. This will be a very serviceable channel for steamers to lie and turn in, and is much wanted at the present time. It would also form part of the total dredging work suggested above.