. Railway age . Fig. 2—Cross Section Showing Details of Entrance. It has already Ijeen mentioned that the western extension ofthe South Side Elevated Is liullt above the Chicago Junction fora part of the distance. As the map (Fig. 1) shows, this is l)e-tween Armour and Union avenues. The steel structure Is carriedon the retaining walls, which are widened, or buttressed, at thetop, wherever the steel columns occur, to furnlsli the requisite bear-ing area for the latter. The load is not sufllcient to require anyIncrease In the base dimension of the wall. interesting detail of the north wall as f
. Railway age . Fig. 2—Cross Section Showing Details of Entrance. It has already Ijeen mentioned that the western extension ofthe South Side Elevated Is liullt above the Chicago Junction fora part of the distance. As the map (Fig. 1) shows, this is l)e-tween Armour and Union avenues. The steel structure Is carriedon the retaining walls, which are widened, or buttressed, at thetop, wherever the steel columns occur, to furnlsli the requisite bear-ing area for the latter. The load is not sufllcient to require anyIncrease In the base dimension of the wall. interesting detail of the north wall as far west as Dearbornstreet Is a conduit for telephone, telegraph, signal and electric lightwires. It is a four-duct conduit embedded in the wall 12 in. btlowthe top, with openings at intervals of about 300 ft,, which are 12 , 24 In. deep and 48 In. long at intervals, as shown In the. Chicago Junction Railway and Elevated Railroad Bridges 0Lake Shore and Rock Island Tracks. Elevated Station in Stock Yards February 21, 1908. THE RAILROAD GAZETTE. 245
Size: 2788px × 896px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookidrailwayage44, bookyear1870
