. Public works . ss maintenance cost of asphalt macadam, hestates that on a 32,000 square yard piece of this pave-ment the maintenance cost the first five years was $1,500,and this year 20,000 square yards was resurfaced at acost of $4,881, making the total maintenance cost forthe six years 20 cents per square yard, or 3 1-3 cents persquare yard per year. In King County, in the suburbs of Seattle, three milesof road originally built as waterbound macadam withI. 6-inch base was resurfaced in 1910 with two inchesof crushed stone and Tarvia by the penetration method,the total
. Public works . ss maintenance cost of asphalt macadam, hestates that on a 32,000 square yard piece of this pave-ment the maintenance cost the first five years was $1,500,and this year 20,000 square yards was resurfaced at acost of $4,881, making the total maintenance cost forthe six years 20 cents per square yard, or 3 1-3 cents persquare yard per year. In King County, in the suburbs of Seattle, three milesof road originally built as waterbound macadam withI. 6-inch base was resurfaced in 1910 with two inchesof crushed stone and Tarvia by the penetration method,the total cost per mile with base equivalent to 7 inchesbeing $10,000. In the four years since then $8,509 hasbeen spent on this road and about one and a half milesis in very poor condition and should have been resur-faced this year. He estimates that it would take only.^ix years of maintaining this road, added to the firstcost, to equal the cost of a standard hard surfacepavement such as brick. The county commissioners of. Courtesy ^Edison Portland Cement Company. COMPLETED ROADWAY NEAR FOOT OF INCLINE, 954 MUNICIPAL JOURNAL Vol. XXXVII. No. 27 King County have discontinued the use of penetrationmethod because of the excessive cost of maintenanceand the difficulty of making small repairs without pro-ducing a rough surface. EXAMINATION^OF AKRON PAVE-MENTS Determining Amount of Repairing and of ReconstructionNecessary—Openings in Pavements—Traffic Census Necessary for Correct in 1914 the city council of Akron, Ohio, di-rected the Municipal University of that city to investi-gate the pavements in regard to condition, cost anddurability, with the view of considering the adoptionof the direct method of pavement construction. Theywere also directed to report on the various types ofpavements in general use, their cost and adaptabilityto various classes of traffic. To gather the fieJd information, the services of sixengineering students were enlisted, while informationwas ga
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