Posted May 10, 2020

PITTSBURGH, Pa. — “When the Liberty Tunnels opened on March 23, 1924, they marked the beginning of a transformation that would define the South Hills. Heralded as an engineering marvel, they had a potentially fatal flaw that would be revealed just two months later.”

https://www.wpxi.com/archive/this-day-may-10-1924-liberty-tunnels-fill-with-deadly-fumes-33-people-overcome/UQTVOF43GRFE3C32KR4P3DQ6SM/?fbclid=IwAR2kSzjFmShQQ9VwhlxCBoR-c7pETE9-n-yXq1wKJXDnHrPQeYkOalr4ajM