On the previous night, DOBO rolled over a spot of wide gauge causing the rear engine and three loaded sand cars to derail. During the following day, BO-1 was utilized to rerail the train in former Boston & Maine "Yard 8". The area, dubbed Mystic Jct, was once the site of several Boston & Maine freight yards with 24/7 operations including yard switching, local service and road freights. Now, it's been reduced to a single poorly maintained track through former Yard 8. Soon, the MBTA Green Line Extension project (GLX) will be taking over this yard for their mainline to Medford.