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The Raúl Uranga – Carlos Sylvestre Begnis Subfluvial Tunnel (in Spanish, Túnel Subfluvial Raúl Uranga - Carlos Sylvestre Begnis), formerly known as the Hernandarias Subfluvial Tunnel, is an underwater road tunnel that connects the provinces of Entre Ríos and Santa Fe in Argentina, crossing the Paraná River between the capital of Entre Ríos, Paraná, and Santa Cándida Island, 15 km ...
An underwater tunnel is a tunnel which is partly or wholly constructed under the sea or a river. They are often used where building a bridge or operating a ferry link is unviable, or to provide competition or relief for existing bridges or ferry links. [ 1 ]
In 1960, the construction of the Trans-Canada Highway (TCH) through Quebec from the Ontario border to Rivière-du-Loup was announced. In Montreal, to avoid having to build a huge bridge that would have disfigured the city and destroyed a neighbourhood, engineers opted for the construction of a tunnel located under the Saint Lawrence River and dug a trench under the river bed and buried the ...
Submerged floating tunnels can be anchored to the seafloor (left) or suspended from a pontoon (right) A submerged floating tunnel (SFT), also known as submerged floating tube bridge (SFTB), suspended tunnel, or Archimedes bridge, is a proposed design for a tunnel that floats in water, supported by its buoyancy (specifically, by employing the hydrostatic thrust, or Archimedes' principle).
The Tokyo Bay Aqua-Line (東京湾 アクアライン, Tōkyō-wan Akua-rain [9]), also known as the Trans-Tokyo Bay Expressway, is an expressway that is mainly made up of a bridge–tunnel combination across Tokyo Bay in Japan.
Cross-Harbour Tunnel was completely suspended during protest in November 2019. The Hong Kong government used the operator model "Build Operate Transfer", or "BOT", for the implementation of the tunnel project; Financing and construction was the responsibility of a private enterprise, which was granted a concession to operate and collect tolls for 30 years.
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This fee is called a shadow toll (Spanish: peaje en la sombra). [3] The system can be regarded as a way for the Government to finance the construction of new roads without any initial outlay of money. Also, since payment starts after the road is finished, there are fewer construction delays in comparison with regular state-owned construction.