. Electric railway review . tails of Temporary Trestle. the station was established on the old southbound and thenew northbound track. The metal work and the new stationbuilding were then completed without interference with trainservice. To make this change at each station required about60 days. Changes of Alignment on Curves. East of Prairie avenue a new curved structure was builtand the old one abandoned. In carrying out this all the work possiljle in constructing foundations and erecting the steelwas done before the old structure was disturbed. The endsof the old track stringers adjacent to
. Electric railway review . tails of Temporary Trestle. the station was established on the old southbound and thenew northbound track. The metal work and the new stationbuilding were then completed without interference with trainservice. To make this change at each station required about60 days. Changes of Alignment on Curves. East of Prairie avenue a new curved structure was builtand the old one abandoned. In carrying out this all the work possiljle in constructing foundations and erecting the steelwas done before the old structure was disturbed. The endsof the old track stringers adjacent to the bents at the newpoint of curve and point of tangent were then supported andcut loose from the old cross girders, the old bents removedand new bents substituted. The old track stringers werethen spliced and riveted to the new cross girders as in thecase of those at the stations. The new stringers for thenorthbound track were placed and crossovers put in to estab-lish single-track service on the old northbound track. The. South Side Elevated Railroad—Remodeled Structure ShowingCross and Knee Bracing. structure under the old southbound track was then removed,except for 180 feet at the central portion of the stringers in the northbound track on each side of thebent south of the point of curve were supported and the oldcolumns removed. When this was done the new columns andcross girders were placed, and most of the remaining columnsand cross girders were erected. It was then necessary tosupport the track stringers of the northbound track in a likemanner north of the point of tangent. All stringers whichcould be placed without interfering with traffic were thenerected and double-track service was resumed on the newsouthbound track and the old northbound track. Later thenew southbound track was used for single-track service whilethe old structure under the northbound track was removedand the new columns and stringers i)ut in. When the restof the central track stringer
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectstreetr, bookyear1906
