A sneak peek at Union Station’s new concourse before it opens on Monday

'A once in a lifetime project': A sneak peek at Union Station's new concourse before it opens on Monday

Union Station's new York St. Go Train concourse, an airy expanse of light stone and glass, will open to the public Monday, marking a key milestone in the seemingly endless rebuild of the busy transport hub. The new 62,000 square foot terminal, revealed to reporters Friday, features 50 per cent more room than the existing Bay…