. The Street railway journal . NorthernCentral Railroad tracks, and further in order to span asmall stream and the streets in Mount Washington,a singletrack steel viaduct about 1400 ft. long was is one of the most interesting features of the line, andis illustrated in the engravings on page 177. The spans over the Northern Central Railroad consist of two plategirders 68 ft. long x 5 ft. deep, placed 14 ft. between cen-ters and supported by steel towers. A clear headway of22 ft. was required above the top of the steam rails. Theremainder of the viaduct consists of plate girder
. The Street railway journal . NorthernCentral Railroad tracks, and further in order to span asmall stream and the streets in Mount Washington,a singletrack steel viaduct about 1400 ft. long was is one of the most interesting features of the line, andis illustrated in the engravings on page 177. The spans over the Northern Central Railroad consist of two plategirders 68 ft. long x 5 ft. deep, placed 14 ft. between cen-ters and supported by steel towers. A clear headway of22 ft. was required above the top of the steam rails. Theremainder of the viaduct consists of plate girder spansvarying in length between 34 ft. and 40 ft., supported bytowers from 17 ft. to 20 ft. center to center. The founda-tions of the towers are of two classes, one of masonryresting on concrete footings, and the other being entirelybuilt of concrete with granite cap stones. The viaduct was furnished by J. G. White & Company,their sub-contractors, the Phcenix Bridge Company, sup-plying and erecting the steel FIG. 11.—STANDARD OPEN CAR ROLUNG rolling stock includes ten double truck open cars,madeby the American Car Company,34-ft. body, 40-ft. bumpers,with Bemis double trucks, each equipped with two motors. These cars are of the cross seat,center aisle type, with Walkover rattan covered spring
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
