Mystery Rails on Ring Road
Information on the black lines on Ring Road
While walking around Boston's Back Bay, you may notice something strange on the road between the Prudential Center and Shaws Supermarket (Ring Road). If you look down you'll see some metal on the street and sidewalk that run's parallel to the street.
This metal strip is called Migutan Rails, and Boston isn't the only place where you'll see them. The purpose of these strips is to protect water from going underneath the road or sidewalk. That's because much of the Prudential Center and Shaws is built over the Massachusetts turnpike.
You can find Migutan rails almost any place where it's necessary to protect water from going underneath the split slab deck. Such as Parking garages, Plazas, and Podium Stadium concourses. You'll find them in Gillette Stadium, Fenway Park, Meadowlands, and Yankee Stadium.
If you look carefully you can see a stamp 'Migutan' on the stainless steel capping strips. That's the brand of the system made by EMSEAL Joint Systems located in Westborough, Massachusetts.