- published: 11 Sep 2012
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The Holland Tunnel is a highway tunnel under the Hudson River connecting the island of Manhattan in New York City with Jersey City, New Jersey at Interstate 78 on the mainland. Unusual for an American public works project, it is not named for a government official, politician, a local hero or a person of historical interest but for its first chief engineer. The tunnel was originally known as the Hudson River Vehicular Tunnel or the Canal Street Tunnel; it was the first of two automobile tunnels built under the river, the other being the Lincoln Tunnel.
It is considered to be one of the most at-risk terrorist targets in the United States.
Begun 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. Famed tunnel designer Ole Singstad finished Holland's work. The tunnel is one of the earliest examples of a mechanically ventilated design. 84 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 fans can completely change the air inside the tunnel every 90 seconds. A forced ventilation system is essential because of the poisonous carbon monoxide component of automobile exhaust, which constituted a far greater percentage of exhaust gasses before catalytic converters became prevalent.
Holland
Holland is a region in the western part of the Netherlands. The term Holland is also frequently used as a pars pro toto to refer to the whole of the Netherlands. This usage is generally accepted but disliked by Dutch people in the other parts of the Netherlands.
From the 10th century to the 16th century, Holland proper was a unified political region, a county ruled by the Counts of Holland. By the 17th century, Holland had risen to become a maritime and economic power, dominating the other provinces of the Dutch Republic.
Today, the former County of Holland consists of the two Dutch provinces of North Holland and South Holland, which together include the Netherlands' three largest cities: country capital Amsterdam; seat of government The Hague; and Rotterdam, home of Europe's largest port.
Pliny the Elder (AD 23–79) referred to this region as the land between the Helinium and Flevo ("inter Helinium ac Flevum"), the names of the mouths into which the Rhine divided itself, the first discharging its waters in the Mosa in the neighbourhood of Brielle and the second into "the lakes of the north" (present IJsselmeer). The name Holland first appeared in sources in 866 for the region around Haarlem, and by 1064 was being used as the name of the entire county. By this time, the inhabitants of Holland were referring to themselves as "Hollanders".Holland is derived from the Middle Dutch term holtland ("wooded land").[citation needed] This spelling variation remained in use until around the 14th century, at which time the name stabilised as Holland (alternative spellings at the time were Hollant and Hollandt). Popular, but incorrect etymology holds that Holland is derived from hol land ("hollow land") and was inspired by the low-lying geography of Holland.[citation needed]