The i495 and King St intersection was completely re-done last year in a MassDOT project. The wide lanes disappear in the snow however so be very careful navigating there.
You really need to be skinny when you get squeezed into what was a full lane but is no longer and there is an 18 wheeler next to you. Be careful!
While the State did the reconstruction of the interchange, does any one know who is responsible for this section to be plowed: the State or Franklin?