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Photo: Strukton Groep N.V. / G. Dubbelman
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A joint venture of Dutch contractors Strukton Groep N.V., Utrecht and Van Oord N.V., Rotterdam, on 31 May lowered and inserted a 136-meter-long, 20,000-tonne sunken-tube tunnel element into a predredged trench under Amsterdam’s historic Central Station. Thousands of timber piles were replaced by new concrete foundations to make way for the new tunnel under the adjacent IJ River and through the station. The tunnel is part of the city’s new north-south metro, scheduled to open in 2017.
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