Which is the most expensive tunnel to use in the United States?

The $3.9 billion Virginia Tunnel will be the most costly tunnel in the country to use, but it’s not a bad choice for a place with such limited resources.The Virginia Tunnel is just one of more than 100 tunnels being considered by the federal government to provide the public with access to tunnels.Virginia Tunnel construction […]

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A hidden cave: The secrets of the secret tunnel

Secret tunnels are everywhere in the U.S. and have long been part of our national heritage.But few people know they are actually buried under the ground, tucked away in caves and tunnels that are often inaccessible or have been for decades.But that could soon change thanks to a new project in the Midwest called the […]

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