So you wanted to know what it's like to work in a NYC subway tunnel
NYC Transit released some videos that show the damaged caused by Super Storm Sandy and what is being done to repair that damage.
In the second video the real action starts around the 2 minute mark. In one scene the worker is using a power hammer on the tunnel ceiling. Imagine if he poked a hole in that ceiling? Hello East River! (not really possible I would imagine).
If you've ever taken a ride on a NYC Subway let's just say..it can sometimes be odorous. Imagine working in that environment for 8 hours with noise, dust, and god only knows what else.