Under Boston · STOP 11 · Boston Common / Chinatown edge
The Transit Commission's own report says ten people died in the 1897 explosion at this corner - six on the spot, four later.
On March 4, 1897, gas leaking into the subway dig at the corner of Tremont Street and the Common exploded under a passing streetcar. The Transit Commission's report counts the dead, then adds one line: 'The subway structure was not injured.' The subway opened six months later, behind a granite entrance once likened to a mausoleum. It still stands.

This is stop 11 of Under Boston. Walk it - any two stops are free.
The plate
The Commission Counted Ten
Collected on site
In these collections: Under Your Feet, Firsts (Contested)
Near Chinatown · Near Tufts Medical Center · Near Downtown Crossing · Near Park Street · Near Arlington
Sources (14)
- Third Annual Report of the Boston Transit Commission (year ending Aug 15 1897)Boston Transit Commission · 1897
- Notes from the Archives: Tremont Street SubwayCity of Boston Archives (Alejandra Dean) · n.d.
- Tremont Street subway explosion (photograph, N. L. Stebbins)Boston Public Library, Arts Department, via Digital Commonwealth · 1897-03-04
- 125 Years Ago, Like Today, Many Bostonians Feared Their Subway SystemBU Today (Doug Most) · 2022-07-26
- Gas explosion occurs during construction of new Boston subwayWhen and Where in Boston · n.d.
- Gas explosion, corner of Boylston and Tremont Streets (photograph, Elmer Chickering)Boston City Archives via Digital Commonwealth · 1897-03-04
- Tremont Street Subway - National Historic Landmark nomination (Rettig)National Park Service, NPGallery 66000788 · 1976
- Fifth Annual Report of the Boston Transit Commission (year ending Aug 15 1899)Boston Transit Commission · 1899
- America's First Subway (Park Street plaque)Read the Plaque · n.d.
- Park Street Subway StationSAH Archipedia (Buildings of Massachusetts) · n.d.
- First Annual Report of the Boston Transit Commission (year ending Aug 15 1895)Boston Transit Commission · 1895
- From corner of Common (about 12:20) Hotel Touraine under construction (Boylston Street explosion)N. L. Stebbins, photographer. Boston Public Library, Arts Department, via Digital Commonwealth · 1897-03-04
- Corner of Tremont and Boylston (Boylston Street explosion)N. L. Stebbins, photographer. Boston Public Library, Arts Department, via Digital Commonwealth · 1897-03-04
- Hotel TouraineWikipedia · accessed 2026-10-11