Show low maintenance cost on roads no state in the union is showing a better record for low cost ot of maintenance teri ance on its state highway system than massachusetts the impressive showing of only acts per square yard for maintaining square yards ot of concrete pavements during 1923 is considered by engineers to be remarkable in view of 0 the tact fact that the roads have been in service for or many years the rate of acts per square yard is equivalent to a mile tor for an IS foot roadway on the macadam ro roads ads of 0 the state which are older even than the state roads that are paved with concrete and are of 0 lighter construction the average cost during 1823 1923 tor for the maintenance ot of square yards was only cents per square yard or per mile ot of is 1 toot foot road the roads constructed in massachusetts chu in 1923 included 32 miles ot of portland cement concrete pavement and miles ot of the types |