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Scientific American, Vol. 90, No. 13 (March 1904) (1904)

leaf 8

An illustration from Scientific American, Vol. 90, No. 13 (March 1904), 1904, leaf 8
ojected forward about 6 feet. It was built of %-inch steel plates laid on brackets pressure in the tunnel, and the inrushing formed of 12-inch I-beams. This apron water drowned twenty of the workmen. The enabled the workmen to attack the rock work was then continued half-heartedly for without fear… … The New Shield at Morton Street, Which is to Continue the Tunnel Under the City. Junction of the Two Sections, Showing: Also the Tilted Position of the Shield. Sectional View, Showing- the Course of the Tunnel Under the Hudson River. THE HUDSON RIVER TUNNEL. © 1904 SCIENTIFIC AMERICAN, INC

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