Build Parcel 12 – Construction at I-90, Mass Ave. & Boylston St.

A large construction project over the Massachusetts Turnpike (I-90) just east of Fenway Park begins this month. It will effect traffic on I-90, Massachusetts Avenue, Boylston Street and the surrounding area.

From the Build Parcel 12 website

Building over the Massachusetts Turnpike — two new buildings connected by a landscaped public plaza, enhancing the heart of one of Boston’s most walkable districts.

Starting in August 2020, construction begins over the Mass Pike (I-90) and Worcester Line Commuter Rail tracks, while improving the highway on-ramp and Mass Ave to bring safer pedestrian, bicycle, and transit connections.

Featuring storefront retail, a hotel, and world-class office space, Parcel 12 will knit together the Back Bay and Fenway neighborhoods, connect the South End and the City of Cambridge, and vastly improve the street-level experience along Massachusetts Avenue between Boylston and Newbury Streets.

Because this project is building on air rights over the highway, it requires closing one highway lane in each direction in the area of construction as steel and concrete is erected to form a deck over the Turnpike. Throughout construction, the construction team will work together with the City of Boston and MassDOT so you know when and how work and lane closures will happen, share tips on how you can adjust your commute if you want to avoid driving, and answer your questions about the construction process.

An online public meeting was held on Aug. 11 with a presentation of the project highlights. We encourage you to review the presentation to be better informed about the project that will run into 2022.