# Mexico City Metro Line 12 overpass collapses, killing 26

Date: 2021

## The fact

On 3 May 2021 an elevated girder on Mexico City Metro Line 12 collapsed between Olivos and Tezonco, killing 26 people and injuring 98. [Claudia Sheinbaum](/people/claudia-sheinbaum) was Head of Government. Construction sat under [Marcelo Ebrard](/people/marcelo-ebrard)’s earlier city term.

## Context

Sheinbaum commissioned DNV. Later reports named construction defects and maintenance gaps. Neighbouring 2024 presidency is later. She did not design the 2012 line.

Cablebús 2021 is a different city instrument. The 2024 oath is later.

The President of Mexico heads the federal executive, promulgates laws Congress sends, and commands the armed forces. She does not write an INE tally, a SCJN judgment, a US tariff schedule, or a cartel killing by herself. Andrés Manuel López Obrador’s earlier statutes are not her later decrees unless she re-enacted them. A disappearance print is not a unique due-process coefficient.

## Evidence and sources

Government of Mexico City carries the official instrument or communique. Reuters records the same dated act independently.

## Significance

The path is [humanitarian access](/drivers/humanitarian-access) and health-system shock: a completed elevated-metro failure with a named death toll on the city executive’s watch.

## What is established and what is not

Established: 3 May 2021 collapse, 26 dead, independently reported; she was Head of Government.

Not established: a unique later federal homicide coefficient, or that she uniquely authored 2012 construction defects.

What would change the picture: a contradictory original with a different date or name, a later repeal, a court that vacated the instrument, or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of later institutions.

The date is the date of this instrument, not a licence to back-date every later harm or benefit.

Ebrard’s construction term and contractors share the parent file. DNV later named maintenance gaps on her watch.. A later repeal, court stay, or successor order would be a different Fact with a different date. That pair identifies Mexico City Metro Line 12 overpass collapses, killing 26, not a later speech about Mexico City Metro Line 12 overpass collapses, killing 26.

Co-authors and later implementers named in Context remain on the file. Mexico City Metro Line 12 overpass collapses, killing 26 on 2021-05-03 is not a licence to treat every later Government of Mexico City communique as this same act. If a later repeal, stay, or successor instrument exists, it needs its own date and its own row. This dossier refuses to average Mexico City Metro Line 12 overpass collapses, killing 26 into a personality. The contribution described on this Person row is limited to She ran the city and the metro operator. Ebrard’s construction term and contractors share the parent file. DNV later named maintenance gaps on her watch. That limit is the alternative to treating office-holding as authorship of every later series.

## People

- Claudia Sheinbaum: https://factrail.ai/people/claudia-sheinbaum

## Drivers

- Humanitarian Access: https://factrail.ai/drivers/humanitarian-access
- Health-System Capacity: https://factrail.ai/drivers/health-system-capacity

## Sources

- https://www.reuters.com/world/americas/mexico-vows-probe-into-terrible-metro-collapse-says-too-soon-point-fingers-2021-05-04/
- https://www.cdmx.gob.mx/

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/mx-linea12-2021