South_Bay_Interchange
The South Bay Interchange is a massive interchange in downtown Boston, Massachusetts, in the US. The interchange consists of Interstate 90, the Mass Pike Extension, and the Interstate 93 concurrency with US 1 and MA 3 south of the Thomas P. O'Neill Jr. Tunnel.[1]
The interchange dominates the South Bay parcel, a 10-acre (40,000 m2) site between Chinatown and the Leather District. It is roughly bounded by Kneeland Street, Hudson Street, the Massachusetts Turnpike mainline, and the Interstate 93 mainline. Currently owned by the Massachusetts Department of Transportation (MassDOT), the area is taken up by a major highway interchange between 90, 93, and local streets. There were original plans to re-develop the area with a 600-foot-tall (180 m) office tower, but no such project has taken place.