. Electric railway journal . forced concrete, and the floor ofthe pit section is 4 in. thick, the main floor of the car-house being 6 in. thick and reinforced with expandedmetal. The roof is of six-ply tar and gravel on timbersupports, and is provided with the usual extension firewalls, these being carried from 5 ft. to 6 ft. 6 in. abovethe roof and about 5 ft. beyond the end. All pits are 200 ft. long and about 4 ft. wide betweenpiers, with drainage toward a central duct system dis-charging into a brook near the building. The housetracks are of 60-lb. T-rail carried on cast-iron plates atthe
. Electric railway journal . forced concrete, and the floor ofthe pit section is 4 in. thick, the main floor of the car-house being 6 in. thick and reinforced with expandedmetal. The roof is of six-ply tar and gravel on timbersupports, and is provided with the usual extension firewalls, these being carried from 5 ft. to 6 ft. 6 in. abovethe roof and about 5 ft. beyond the end. All pits are 200 ft. long and about 4 ft. wide betweenpiers, with drainage toward a central duct system dis-charging into a brook near the building. The housetracks are of 60-lb. T-rail carried on cast-iron plates atthe piers and clamped to the plates by %-in. U-bolts asillustrated. The piers are 7 ft. apart on centers, andlocated opposite each other, being 12 in. x 14 in. in sec-tion. The outside walls are 16 in. thick, and woodenswinging doors are provided at the end of each yard tracks are connected with the double-trackmain line by four spurs, and two additional tracks arelocated outside and parallel to the building from front. BAY STATE CARHOUSE—GENERAL VIEW SHOWING TOWER WAGON GARAGE AND SAND TOWER AT LEFT-HAND SIDE OF CARHOUSE to rear. The yard tracks are laid in rock ballast andthe yard is 190 ft. long from the street to the carhouse,providing ample space for switching and temporarystorage. Span construction is used throughout the yard exceptover the two outside tracks, where bracket suspension isemployed. The outside track on the east side of thebuilding borders a roadway convenient when handling Pen E
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
