Exca- Row and vation for two Broadway t o tracks has also Whit ehall been carried Street, where along on the it will de- eastern side scend and pass from 51st beneath the Street to 52d Bast River to Street, and Joralemon also from 53d Street, Brook- Street to 57th 1 y n . From Street, where… … it will swing excavation i s to the left, fol- all done and MAP OF THE NEW YORK RAPID TRANSIT TUNNEL SHOWING PROGRESS OF CONSTRUCTION. lowing Forty- about half of the steel is in place. From 64tli to 72d Street about second Street to Broadway, when it will turn to the work is about half completed.…
Engine · Excavation · Power · Feet · Street · Steel · Horse power · Electric power · Street excavation · Scientific American · Technical high · Rapid transit · Sulphur dioxide · Steel work · Northern pacific · Steam engine
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