The MTA has been building a tunnel to bring the LIRR into Grand Central. They're expecting it to be complete by 2016. The photo above is from a slideshow on WNYC.org showing some of the images of the dig. Ron Cohen, who is pictured, has been a foreman on this project for a year. If sees it to fruition, he will have worked underground for 9 years. That's insane.

Also worth noting, the workers have a choice of Dunkin Donuts and Starbucks coffee. According to the caption (Image #4), the workers prefer Dunkin Donuts.

Slideshow via Sean and you can read more about this on Gothamist