I was on the Upper East Side last week for a film shoot and got to see first hand all the construction happening on Second Ave for the new "T" line. Its been in the news lately as merchants and residents have been complaining loudly about the noise and mess of construction and how it's been bad for business. This weekend the MTA responded with an comprehensive new plan to address these concerns. Over at the Launch Box blog, there is a summary of what's going on along with pictures of all the mess on the street.
Also on that blog, they've put together a great Google Map where you can follow the progress of the boring machine. The map also has pictures of the new station locations and some of the major construction sites, like the launch box itself where the tunnel boring machine took off from earlier this year. Currently, it's chewing its way through granite about 100 feet below 79th Street. It has about 15 blocks to go before it will turn around and start boring it's way back up Second Ave next year.