ROAD-MAKING.

New Zealand Herald, Volume XVII, Issue 11542, 29 November 1900, Page 6

ROAD-MAKING.

to the editor. Having read of late letters and reports as to the proper size to break the blue road metal for macadamised city and country.. roads, allow mo to say that the correct and lasting size is a 4in,. or better

44in, for lasting and firmly get wear, more especially for country mads. Thie is a use of metal that will! retain its position lon get and mere firm, and will wear at least twice or three times the length of time, if properly and firmly laid. The durt from the breaking mill would form a binder if the metal were laid in the wet season of the year. Roads of this description and size of blue metal have been tested and proved in Auckland and other countries. I have travelled on a piece of road for over 10 years and although gome six miles out of the city it is till in a fairly good state. It has stood constant heavy and light traffic without repairs of any kind until the last 12 months and then it was repaired with 2£ip broken metal, and which repairs can be seen to be worn more than the old portion of the 4in or 4£in metal. I admit that should one of -these stones become misplaced, they are more cumbersome, but not more dangerous to a horse than a 2£in stone. " Common Sense" admits that dust lies smoother and • easier than rubble. So with the small metal and the larger, but when well and fairly placed the larger succeeds, and proves the most serviceable and lasting, and has the most even surface of the two, and is more profitable to a road board or city council. But care should be taken that no rotten stones pass the inspector of the metal bofore being placed.l am, etc., R. M. Heighton. 136, Queen-street, Auckland.