. Hudson & Manhattan tunnels : uniting New York and New Jersey in picture and story. . ted and bolted together,and sheathed with concrete either all or a part of the way around the circle. The shieldis forced forward into the soil by huge jack-screws, and its correct path is maintainedto the fraction of an inch by careful mathematical calculation. Electricity was alsoused as a means of both light and power in the construction work, greatly facilitatingthe speed and accurate completion of the undertaking. The Tubes. Each tube is fifteen feet three inches in diameter, and lies from sixtyto ninet
. Hudson & Manhattan tunnels : uniting New York and New Jersey in picture and story. . ted and bolted together,and sheathed with concrete either all or a part of the way around the circle. The shieldis forced forward into the soil by huge jack-screws, and its correct path is maintainedto the fraction of an inch by careful mathematical calculation. Electricity was alsoused as a means of both light and power in the construction work, greatly facilitatingthe speed and accurate completion of the undertaking. The Tubes. Each tube is fifteen feet three inches in diameter, and lies from sixtyto ninety feet below the surface of the water, or from fifteen to thirty feet below thebed of the river. The total length of the sub-aqueous portion of the tube is approxit-mately five thousand seven hundred feet, or about two and a half miles. Under the River. So brilliantly lighted are the tunnels that one in entrancementmay look far into the tube under the mighty river on whose bosom float the commerceof a nation; from whose piers departures may be made to almost every habitable portion. Here we look upon the giant minds who have made possible the tunnel: McAdoo, Jacobs, Davies and associates. of the globe; on whose troubled breast ride the largest, the grandest, the most expensiveand luxurious floating palaces built. The Stations. The stations are built on what is known to the engineering fraternityas the tangent form, which means simply that the tracks in the stations are perfectlyparallel with the platforms, that there are no curves where the passengers are allowedto enter the cars, thus avoiding the dangers of the wide step so often found in othertransit systems of the great metropolis. There are two platforms in each terminal, the arriving and departing. Passengersbeing given egress and ingress on opposite sides of the cars, thereby avoiding the stationdelays heretofore so perplexing. The stations are designed with a view to permanency, comfort and beauty. Theyafford ample faci
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecttunnels, bookyear1908
