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A Complicated Dig

About 40 feet below Route 123 at International Drive, excavation has begun on the twin 2,400-foot tunnels that will connect two of the future Metro stations at Tysons Corner. Here is a look at the operation underway:

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18 Feet Done, Many More to Go
Article | Cars crawl down Route 123 in the afternoon rush. Forty feet below them, giant machines and men wearing yellow hard hats begin their advance under Tysons Corner to bring Northern Virginia commuters their holy grail: a new subway.

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