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Tunnels

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Architecture, Transportation

Holland Tunnel

The Holland Tunnel is a vehicular tunnel under the Hudson River. It connects Manhattan in New York City, New York, to the east, and Jersey City, New Jersey, to the west. An integral conduit within the New York metropolitan area, the Holland Tunnel is operated by the Port Authority of New York and New Jersey (PANYNJ). The entirety of the tunnel carries Interstate 78; the New Jersey side also carries New Jersey Route 139.

Architecture, Transportation

Lincoln Tunnel

The Lincoln Tunnel is an approximately 1.5-mile-long (2.4 km) tunnel under the Hudson River, connecting Weehawken, New Jersey on the west bank with Midtown Manhattan in New York City on the east bank. It was designed by Ole Singstad and named after Abraham Lincoln.

Architecture, Transportation

Alaskan Way Viaduct replacement tunnel

The Alaskan Way Viaduct replacement tunnel is a bored road tunnel that is under construction in the city of Seattle in the U.S. state of Washington. The 2-mile (3.2 km) tunnel will carry State Route 99 under Downtown Seattle from the SoDo neighborhood to South Lake Union in the north.

Architecture, Transportation

Mont Blanc Tunnel

The Mont Blanc Tunnel is a highway tunnel in Europe, under the Mont Blanc mountain in the Alps. It links Chamonix, Haute-Savoie, France with Courmayeur, Aosta Valley, Italy, via European route E25, in particular the motorway from Geneva to Turin. The passageway is one of the major trans-Alpine transport routes, particularly for Italy, which relies on this tunnel for transporting as much as one-third of its freight to northern Europe. It reduces the route from France to Turin by 50 kilometres and to Milan by 100 km (60 mi). Northeast of Mont Blanc's summit, the tunnel is about 15 km (10 mi) southwest of the tripoint with Switzerland, near Mont Dolent.

Architecture, Transportation

Cross-Harbour Tunnel

The Cross-Harbour Tunnel is the first tunnel in Hong Kong built underwater. It consists of two steel road tunnels each with two lanes constructed using the single shell immersed tube method.

Architecture, Transportation

Chenani-Nashri Tunnel

Chenani-Nashri Tunnel, also known as Patnitop Tunnel, is a road tunnel in the Indian state of Jammu and Kashmir on NH 44. The work was started in 2011 and was inaugurated on 2 April 2017 by Prime Minister Mr. Narendra Modi.

Architecture, Transportation

Gotthard Road Tunnel

The Gotthard Road Tunnel in Switzerland runs from Göschenen in the canton of Uri at its northern portal, to Airolo in Ticino to the south, and is 16.9 kilometres (10.5 mi) in length below the St Gotthard Pass, a major pass of the Alps. At time of construction, in 1980, it was the longest road tunnel in the world; it is currently the ninth-longest. Although it is a motorway tunnel, part of the A2 from Basel to Chiasso, it consists of only one bidirectional tube with two lanes. With a maximum elevation of 1,175 metres (3,855 ft) at the tunnel's highest point, the A2 motorway has the lowest maximum elevation of any direct north-south road through the Alps.

Architecture, Transportation

Detroit–Windsor Tunnel

The Detroit–Windsor Tunnel, also known as the Detroit-Canada Tunnel, is a highway tunnel connecting Detroit, Michigan, in the United States, with Windsor, Ontario, in Canada. It is the second busiest crossing between the United States and Canada.

Architecture, Transportation

Rohtang Tunnel

Rohtang Tunnel is a highway tunnel being built under the Rohtang Pass in the eastern Pir Panjal range of the Himalayas on the Leh-Manali Highway. With 8.8 km (5.5 mi) length, the tunnel will be one of the longest road tunnels in India and is expected to reduce the distance between Manali and Keylong by about 60 km (37.3 mi) The tunnel is at an elevation of 3,100 metres (10,171 ft) whereas the Rohtang Pass is at an elevation of 3,978 metres (13,051 ft) and 51 km (32 mi) from Manali. The excavation of the tunnel completed in October 2017 when the blasting from south and north ends joined and the completed tunnel may open in 2019.

Architecture, Transportation

Queens–Midtown Tunnel

The Queens–Midtown Tunnel is a toll tunnel underneath the East River in New York City. It connects Long Island City in Queens, to the east, with the East Side of Midtown Manhattan, to the west. The Queens–Midtown Tunnel consists of twin tubes that each carry two traffic lanes. The tunnel is designated as part of Interstate 495, which originates at the tunnel's Manhattan end and continues eastward across Long Island.

Architecture, Transportation

Elbe Tunnel (1911)

Old Elbe Tunnel or St. Pauli Elbe Tunnel which opened in 1911, is a pedestrian and vehicle tunnel in Hamburg, Germany. The 426 m (1,398 ft) long tunnel was a technical sensation; 24 m (80 ft) beneath the surface, two 6 m (20 ft) diameter tubes connect central Hamburg with the docks and shipyards on the south side of the river Elbe. This was a big improvement for tens of thousands of workers in one of the busiest harbours in the world.

Architecture, Transportation

Eurasia Tunnel

The Eurasia Tunnel is a road tunnel in Istanbul, Turkey, crossing underneath the Bosphorus strait. The tunnel was officially opened on 20 December 2016 and opened to traffic on 22 December 2016.

Architecture, Transportation

Lærdal Tunnel

The Lærdal Tunnel is a 24.51-kilometre-long (15.23 mi) long road tunnel connecting Lærdal and Aurland in Sogn og Fjordane, Norway and located approximately 175–200 kilometres (109–124 mi) north-east of Bergen. It is the longest road tunnel in the world succeeding the Swiss Gotthard Road Tunnel. The tunnel carries two lanes of European Route E16 and represents the final link on the new main highway connecting Oslo and Bergen without ferry connections and difficult mountain crossings during winter.

Architecture, Transportation

Sydney Harbour Tunnel

The Sydney Harbour Tunnel is a twin-tube road tunnel in Sydney, Australia. The tunnel was completed and opened to traffic in August 1992 to provide a second vehicular crossing of Sydney Harbour to alleviate congestion on the Sydney Harbour Bridge. It is the only tunnel under the harbour, although there are plans to build a set of rail tunnels.

Architecture, Transportation

Huguenot Tunnel

The Huguenot Tunnel is a toll tunnel near Cape Town, South Africa. It extends the N1 national road through the Du Toitskloof mountains that separate Paarl from Worcester, providing a route that is safer, faster and shorter than the old Du Toitskloof Pass travelling over the mountain.