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Engineers Are Building an 11-Mile Tunnel Under the Sea Using Giant 73,000-Ton Lego-Like Blocks

Stretching 18 km between Denmark and Germany, this €7bn immersed tunnel is the world’s longest road and rail link. By 2029, it will replace a 45-minute ferry trip with a 10-minute drive or a 7-minute ...
National Academies of Sciences%2c Engineering%2c and Medicine

Guide for the Preservation of Highway Tunnel Systems

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit NAP.edu/10766 to get more information about this ...