Part 2: Unholy Alliance

In the early 1970s a radical idea took shape: tearing down Boston’s elevated downtown highway, and rebuilding it underground. But making it happen will require a grand bargain between two competing tunnel projects, and between bitter enemies. Credits: Host and scriptwriter: Ian Coss Executive Producer: Devin Maverick Robins Producers: Isabel Hibbard and Ian Coss Editor: Lacy Roberts Editorial Advisor: Stephanie Leydon Fact Checker: Lisa Wardle Scoring and Music Supervision: Ian Coss Project Manager: Meiqian He