oa Civil Engineering = Siviele Ingenieurswese - Under and over Tokyo Bay

Volume 6, Issue 6
  • ISSN : 1021-2000



Crossing Tokyo Bay and some of the world's busiest shipping lanes via a 10 km tunnel and 5 km bridge, this link brings Chiba and Kanagawa prefectures to within 15 minutes of each other. Before, ferry and road journeys could take more than 10 times that long. While the project is a masterpiece of civil engineering and its long-term impact should be profound, some have questioned its price tag of US$11 billion and whether it will ever be a paying proposition. But, as with similar criticism directed at the cross-channel 'Chunnel' connecting Britain and the Continent, backers can make eminently sensible counterclaims that the real value of such projects cannot be measured merely on a balance sheet.

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