: 3 If each tube's immediate approach roads are included, the north tube is 9,210 feet (2,807 m) long and the south tube 9,275 feet (2,827 m) long. The north tube is 8,558 feet (2,608 m) between portals, while the south tube is slightly shorter, at 8,371 feet (2,551 m). : 3 Each tube provides a 20-foot (6.1 m) roadway with two lanes and 12 feet 6 inches (3.81 m) of vertical clearance. The steel rings, in turn, are covered by a 19-inch-thick (48 cm) layer of concrete.
#HOLLAND TUNNEL TOLL SERIES#
The exteriors of each tube are composed of a series of cast iron rings, each of which comprises 14 curved steel pieces that are each 6 feet (1.8 m) long. It consists of a pair of tubes with 29.5-foot (9.0 m) diameters, running roughly parallel to each other and 15 feet (4.6 m) apart underneath the Hudson River. The Holland Tunnel is operated by the Port Authority of New York and New Jersey. 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. 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. Jersey City, New Jersey and Manhattan, New York
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