Amtrak Downeaster Crossing the old High Line Bridge in Somerville

This Northbound Amtrak Downeaster just left North Station in Boston. It is heading over the old High Line Bridge in somerville, just North of Boston Engine Terminal. I say "old" bridge because the "new" High Line bridge is under construction just on the other side of the old bridge.
This is on the MBTA Lowell Line.

[@MbtaVideoClips]

Horizon car. Yuck.

[@JohnsTrainVideos]

Is that the first car behind the real locomotive? Whats up with that?

[@MbtaVideoClips]

@@JohnsTrainVideos They're gradually coming to the Downeaster to replace the amfleet cars. Those amfleets will go down to NE corridor services (Keystone, NE Regional, Vermonter, etc) until the end of their lifespans. They look really similar to comets on the outside, but the inside looks really similar to an amfleet.