Eighty-four fans, in four ventilation buildings, create a floor to ceiling air flow across the roadway at regular intervals, via systems of ducts beneath and above the roadway. The tunnel is first mechanically ventilated underwater vehicular tunnel in the world. Tunnel designer Ole Singstad finished Holland's work. The Holland Tunnel was the world's first mechanically ventilated tunnel the ventilation system was designed by Ole Singstad, who oversaw the tunnel's completion.īegun in 1920 and completed in 1927, the tunnel is named after Clifford Milburn Holland (1883–1924), Chief Engineer on the project, who died before it was completed. It was renamed the Holland Tunnel in memory of Clifford Milburn Holland, the chief engineer, following his sudden death in 1924 before the tunnel was opened. The Holland Tunnel was originally known as the Hudson River Vehicular Tunnel or the Canal Street Tunnel. At the time of its opening, the Holland Tunnel was the longest continuous underwater vehicular tunnel in the world. Construction of the Holland Tunnel started in 1920, and it opened in 1927. However, disagreements prolonged the planning process until 1919, when it was decided to build a tunnel under the river. Plans for a fixed vehicular crossing over the Hudson River were first devised in 1906.

The Holland Tunnel is one of three vehicular crossings between Manhattan and New Jersey, the two others being the Lincoln Tunnel and the George Washington Bridge. The tunnel carries Interstate 78 the New Jersey side is also designated the eastern terminus of Route 139. An integral conduit within the New York metropolitan area, the Holland Tunnel is operated by the Port Authority of New York and New Jersey. The Holland Tunnel is a vehicular tunnel under the Hudson River that connects the New York City neighborhood of SoHo in Lower Manhattan to the east with Jersey City in New Jersey to the west.

Holland tunnel closed