A colleague on ArchBoston has slowly been building diagrams of the underground layouts of various MBTA stations over the last several years. Direct links to each post are indexed here. See the introductory post here.
Downtown core stations
- Park Street
- Downtown Crossing
- Government Center
- Haymarket (additional detail here and here)
- North Station
Red Line
- Alewife (further detail here)
- Davis
- Harvard
- Central
- Kendall/MIT
- Charles/MGH
- Park Street
- Downtown Crossing
- North Quincy
Orange Line
- Oak Grove
- Wellington
- Assembly
- Sullivan Square
- Community College
- North Station
- Haymarket (additional detail here and here)
- Downtown Crossing
- Chinatown
- Orange Line under Marginal Road and Mass Pike
- Back Bay
- Mass Ave
- Ruggles
- Jackson Square
Blue Line
- Revere Beach
- Beachmont
- Suffolk Downs
- Orient Heights yard
- Orient Heights
- Wood Island
- Maverick
- Aquarium
- Government Center
- Bowdoin
Green Line
- Green Line Extension junction (“Red Bridge”)
- Lechmere (pre-GLX) with yard details here
- Science Park
- North Station
- Haymarket (additional detail here and here)
- Adams Square
- Government Center
- Park Street
- Boylston
- Tremont Street Subway to Pleasant Street Portal, and Public Garden Incline
- Arlington
- Copley
- Prudential
- Symphony
- Hynes Convention Center
- Kenmore