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Show DO NOT DESTROY OLD ROADS Unless it is true that the cheapest road is the hartisurfaced road,, there would not be so many miles of them built and building throughout the United States at a time when road engineers know more about road building and its advantages than men have known since Roman roads were built. Securing good roads does not mean it is necessary to construct entirely new highways. Many states are simply covering their worn-out rock, gravel, concrete or asphalt roads with a surface of asphaltic concrete, thus utilizing the material, time and money already put on the roads. This type of surface can be quickly applied and maintenance costs are very small. The modern caterpillar tractor with the road building machinery which it can operate, brings economical road building within the reach of every road district. |