The giant TBM (tunnel boring machine) "Marta", which began work on the Metro subway tunnel in January, arrived at Plaza Cinco de Mayo on August 1.
It began operations on January 23, south of Albrook, and has been excavating an average of 16 meters a day
It will continue on the along the route that begins in El Marañon, to the Santo Tomas Hospital and then to the Church of El Carmen.
"Marta" digs a tunnel about 10 meters in diameter and to date has dug a distance of 1,463 meters. Metro Line One will end at the station of Los Andes, in the district of San Miguelito. The cost of the project is over $1.5 billion.