. The street railway review . sh Island will bepaving brick laid on a concrete base. There is a double track electric railway line the entire lengthof the bridge. The rails on that portion of the bridge east of FishIsland, about ft. in length, are known as the Trilby section, Mr. Winiamn ban lx>-n city i-nitineer al New Uidford >inee 1893, anil li chiefenKinrerol the N«w lledford and KairhHicn Brldire. the pole iiasscs and which serves to maintain the pole in proper up-right position. With the exception of the draw span (he rest of the steel workof the birdgc is the regulation deck
. The street railway review . sh Island will bepaving brick laid on a concrete base. There is a double track electric railway line the entire lengthof the bridge. The rails on that portion of the bridge east of FishIsland, about ft. in length, are known as the Trilby section, Mr. Winiamn ban lx>-n city i-nitineer al New Uidford >inee 1893, anil li chiefenKinrerol the N«w lledford and KairhHicn Brldire. the pole iiasscs and which serves to maintain the pole in proper up-right position. With the exception of the draw span (he rest of the steel workof the birdgc is the regulation deck plate girder construction of avery heavy type as compared with ordinary highway bridge steel members used are less than ii in. in thickness, with the ex-ception of the buckle plates, which are 5-16 in. thick. The steel isall made by the open hearth process known as mediuin, with anultimate tensile strength of from 60,000 to 68,000 lb. per sq. in, 844 STREET RAILWAY REVIEW. [ xr. No. II. S/e^/CroaaTTc^^ T^^ifa//. TKACK CONSTRUCTION ON SOLID FILL—AT AND BETWEEN CKOSS TIES. The east section of the steel work was built liy the MarylandSteel Co.; the middle section, including the draw span, was builtby the A. & P. Roberts Co., and the west section is now under con-struction by the American Bridge Co. at its Berlin plant. Thefoundations, masonry and roadway work of the east and middlesections was performed by Steward & McDermott, of New foundation, masonry and roadway work of the west or final abola each way from the tower. The upper chord of the two armsof the span are connected across the four posts of the center towerby eye bars. When the bridge is closed and in use by the public thestrain is taken out of these eye bars by lifting the ends of thebridge. When swinging, the load is on the eye bars. The floor ofthe draw span consists of two courses of plank. The lower courseis 4 in. thick, of yellow pine fastened direct to the steel eye beam
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
