ROAD CONSTRUCTION
' fO THE EDITOR. Sir,—l think that the Highway Board should see to it that- the people’s monev (viz., petrol tax) is not wasted in bad road construction.. I especially refer to the Green Island road. This sort of construction will never stand. To place clean, loose metal underneath, with a coating of asphalt on top, is courting disaster, with continued expense for upkeep. This road has only been used a little over six months and is already bieaking up in places. Roads must stay smooth, regardless of loads, hot weather, o’- soft subsoil. The only construction to give these very .satisfactory results is concrete, and my opinion, as an engineer and draughtsman (late of tho New Zealand Public Works Department) is that, for highway construction outside of cities, 6in of concrete' should. be laid down, reinforced with B.R.G. expanded metal where the:subsoil is soft, the concrete to bo given a coat of tar and sharp sand as a-top-dressing. Expensive foreign asphalts are not necessary as topdressings: everything necessary for the construction of goor roads can be procured and produced in New Zealand—viz., labour, cement, screenings, sand, water, and tar. —I am, etc., R. Walker.
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https://paperspast.natlib.govt.nz/newspapers/ESD19281224.2.63.1
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Evening Star, Issue 20057, 24 December 1928, Page 8
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196ROAD CONSTRUCTION Evening Star, Issue 20057, 24 December 1928, Page 8
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