s, are of caststeel. The foundation, which rests on solid gravel, has beenmade within sheet piling, the masonry is cement con-crete and quarry stone covered with sandstone. The total weight of iron and steel in the girders andanchors is 3,8005 metric tons, which, together with thelead slag, wooden… … SPRING HINGE PILLARS. * See Civil Engineer and Arcbitects Journal of tliat year,t All the tons here mentioned are metric, nf 3,30i lb. avolrdupoiB ; thedifference between these and our le^ tons being unimportant. = 886 5 feet, gives 10,316 kilogrammes per meter (=30,800lb. per yard) run. The…
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