Public works . the concrete rails and ties are laid on broken stone ballast andthe spaces between and on both sides of the 7-inchrails are paved with 3-inch vitrified brick with groutfiller. Between the tracks the narrow strip, edgedon both sides with paving brick, is finished with 2^^-inch thick bituminous surface. The rails are set in1:2 cement mortar. The maximum grade is cent, and the maximum curveture is 11 degrees30 minutes. The contract was awarded to the A. P. Kroft Con- struction Co., York, Pa., which commenced opera-tions July 25. 1921, and finished the wo
Public works . the concrete rails and ties are laid on broken stone ballast andthe spaces between and on both sides of the 7-inchrails are paved with 3-inch vitrified brick with groutfiller. Between the tracks the narrow strip, edgedon both sides with paving brick, is finished with 2^^-inch thick bituminous surface. The rails are set in1:2 cement mortar. The maximum grade is cent, and the maximum curveture is 11 degrees30 minutes. The contract was awarded to the A. P. Kroft Con- struction Co., York, Pa., which commenced opera-tions July 25. 1921, and finished the work the samefall. The concrete curb was first laid and was builtin accordance with the Pennsylvania State Highwaystandards, except that the thickness was, by specialrequest of the borough, made 8j^ inches instead ofthe usual 6 inches. It was concreted in 10-foot sec-tions in forms made of 2-inch surface planks. Agang, consisting of one foreman, one mixer operator,5 skilled laborers and 20 common laborers laid an. 440 PUBLIC WORKS Vol. 52, No. 24 average of 330 feet per 10-hour day and completed11,370 linear feet in 37 days with the use of one54-bag concrete mixer and two trucks. The grading, involving 4,626 yards of excavation,besides that for the track foundations, which wasdone by the York Railway Co., was commenced Au-gust 18 by a Keystone steam shovel with a ^/^-yardbucket, served by four automobile trucks. The workwas done by a force of one foreman, two skilledlaborers and twelve common laborers. The sub-grade was crowned parallel to the finished surfaceand- was thoroughly compacted by a 10-ton steamroller manufactured by the Harrisburg Foundry Co. On August 26th the construction of the concretegutter was commenced which, like the curb, wasbuilt in sections 10 feet long, the entire amount of11,570 linear feet being made in about 42 days by agang consisting of one skilled laborer, twenty com-mon laborers and a foreman, served by one truck andone i2-bag mixer. Concreting the
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectmunicip, bookyear1896
