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Thread: The Future of Dulles Airport [and Metro line]
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Old Jul 25, 2013 | 9:14 am
  #69  
drewguy
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Originally Posted by halls120
An underground terminal would have added massive additional costs to the project, which is why it was wisely shelved.
Explanation here:

http://www.mwaa.com/3785.htm

Some debate here:

http://greatergreaterwashington.org/...und-at-dulles/
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