Construction of the Holland Tunnel

Construction of the Holland Tunnel began on October 12, 1920 that runs between New York, NY, and Jersey City, NJ, USA, beneath the Hudson River. The tunnel named for the chief engineer, Clifford Milburn Holland consisted of two tubes 9,250 feet (2,819 meters) long, of which 5,480 feet (1,670 meters) passing under the river and designed to accommodate 1,900 motor vehicles an hour. The first ventilation system designed to accommodate the exhaust of motor vehicles exchanged air 42 times an hour. The tunnel opened on November 12, 1927, seeing 20,000 people walk through and vehicular traffic began the next day.

      November 12, 1927
      Clifford Milburn Holland
      chief engineer
      New York, NY, USA

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