- BBC News World
A “structural failure” was behind the collapse of line 12 of the Mexico City metro, which left 26 dead last May.
To that conclusion came the independent preliminary appraisal carried out by the Norwegian company DNV, contracted by the government of the capital of Mexico.
“The incident was caused by a structural failure associated with deficiencies in the construction process,” said this Wednesday in a message to the media the Secretary of Works and Services of Mexico City, Jesús Antonio Esteva Medina, when reading the conclusions of the first of the three preliminary investigation reports.
This first study will be followed by the publication of two other reports: one on July 14 and the third and final one on August 30 of this year.
The preliminary survey revealed that the girders (girders) of the collapsed bridge were missing bolts, there were incomplete welds and different types of cement.
In addition, some of the works did not coincide with the original “design plan”, reported the EFE agency.
However, the report highlighted that the line operated “in compliance with the protocols of routine maintenance”.
In the presentation of conclusions was the mayor of Mexico City, Claudia Sheinbaum, and representatives of the Norwegian company, although the director of the metro was not present.
Sheinbaum insisted that it is a “preliminary report” and that there are other processes underway.
In fact, the College of Civil Engineers of Mexico will present its own report this Thursday.
Line 12 collapsed on the night of May 3 in the southeast of the Mexican capital, at the overpass between the Olivos and Tezonco stations.
The train with passengers was stranded in the shape of a “V” and left 26 dead and dozens of injured.
The images of the collapse of the bridge, which fell on cars circulating on the street, shocked the country in the greatest tragedy in the capital since the earthquake of September 19, 2017.
The line in question had been surrounded by controversy over its flaws since the inauguration. His nine years have been marked due to closures, deterioration and repairs.
The accident hit the image of the former mayor and current Mexican chancellor, Marcelo Ebrard, in whose mandate the so-called golden line was built in 2012, and of the current mayor.
The mayor was limited to pointing out that “the responsibilities of companies or public servants are the competence of the Prosecutor’s Office” of the city.
“It is up to us, the head of government, that line 12 can circulate as soon as possible under safe conditions,” he said.
At the event where the conclusions were presented, questions from journalists were not accepted.
In 2017, the then director of the Mexico City Metro, Jorge Gaviño, assured that the line “was born with endemic problems that will never be solved in its life” and that it would require maintenance “in a permanent way.”
Remember that you can receive notifications from BBC News Mundo. Download the latest version of our app and activate them so you don’t miss out on our best content.
Eddie is an Australian news reporter with over 9 years in the industry and has published on Forbes and tech crunch.