File:The Street railway journal (1907) (14573710489).jpg

Identifier: streetrailwayjo301907newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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ew station building is a brick, steel and concretestructure. The portion built measures 181 ft. by 212 ft. andis 122 ft. high. When extended 92 ft. or to full length asplanned it will be 273 ft. long. It is supported on approxi-mately 4000 round piles driven on about 3-ft. centers. Thepiles are 50 ft. long and some were set 30 ft. below the sur-face or were driven to a total penetration of 80 ft. Inexcavating for foundations and trenches for pipes the sur-rounding earth was assumed to be of liquid form weighing120 lbs. per cu. ft. Excavations were protected by 6-in.grooved piling 30 ft. to 50 ft. in length with splines measur-ing 2 ins. by 4 ins. to insure alignment and tight joints.Where possible excavating was done by means of an orangepeel digger and the earth was removed by a tramway. Thepiles were capped with a reinforced concrete mat approxi-mately 6 ft. thick. The average load over the entire foundation is somethingless than 2000 lbs. per sq. ft., but at points the load concen-
Text Appearing After Image:
BOILER ROOM OF THE MAIN OR MARKET STREET STATION trates and is very much above this figure. At such pointstwisted steel rods, varying in number with the leads, wereused to reinforce the concrete mat. CONDENSER INTAKES Plans provide for the ultimate installation of four 72-in.pipes to serve as condenser intake and discharge pipes.All four pipes have been extended through the levee, threehave been installed under the boiler room and one intakeand one discharge pipe have been placed under the railwaytracks between the boiler room and the levee. The pipesare made in 30-ft. lengths of y2-in. riveted steel. A pro-tective coating 1/16 in. thick was applied to them by dip-ping the sections into a hot compound. Lead gaskets areused between the flanged joints and the sections arefastened together with galvanized bolts. Special provisions have been made for removing sandand silt from the pipes. Water jets supplied with waterfrom a fire pump have been installed at 10-ft. intervals inthe bottom of

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