Boston-based local BO-1 exits the Salem Tunnel at McNall Interlocking with 12 empties from Rousselot in tow. From 1958 to 1987, the tunnel trench served as the B&M and MBTA Commuter Rail passenger station as evident by the existing platforms. During the Summer of 2020, the MEC 507 was repainted into a sharp as-delivered Guilford scheme and frequents the Boston and Lawrence area locals.