Show n rc GRANITE BLOCK FOR PAVING material regarded as particularly suitable for trunk lines entering large cities study of various paving materials suitable for much traveled highways has disclosed interesting data on granite blocks to the bureau of public roads of tile the united states department of agriculture many road builders are coming to regard this material as particularly suitable for trunk lines entering largo large towns and cities where there Is an increasing amount of heavy traffic though the initial cost of granite block construction Is high the maintenance of the pv A ement it if properly laid and grouted Is less than that of 0 Y 3 11 4 d the maintenance cost of this kind of pavement if properly laid Is less than that of almost any other kind of pavement almost any other type of pavement in worcester mass over a period of 10 years the average maintenance cost per yard was less than a halt half tent this also Is true in other cities regardless gard less of the fact that in general the streets covered with granite block paying paving are those c carrying the most severe traffic |