excess of those for which the old bridge was in cases where the existing bridge makes provision ranges from 20 to 25 feet, while the depth in the east designed, but this 20,000 tons of steel must be assem- for only a single track, since then it becomes neces- sary, not merely to build a bridge of… … The Traveler Used in Erecting the Trusses. The Traveler and Falsework. Temporary Falsework Pier Supporting Ends of Two Plate Girders. REC0S8TROTJTI0R 0* THE BALTIMORE * OHIO BRIDGE OVER THE SUSQUEHANNA RIVER any interference with the heavy traffic which passes and strength to accommodate heavier…
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