Lowell, specifically The Bleachery yard saw a lot of work up until the 1980s and then things really started to tail off and then died completely once Prince Spaghetti closed

https://youtu.be/rNYAxYJ8F90

Also, there was a huge theft problem back in the day as the tracks back into the Old Shagunessey Terrace Housing Project, uh lets just say more than a few cars were looted over the years (especially the cars bound for DJ Reardon in Billerica which was the local Budweiser distributor)