• Email Us: [email protected]
  • Contact Us: +1 718 874 1545
  • Skip to main content
  • Skip to primary sidebar

Medical Market Report

  • Home
  • All Reports
  • About Us
  • Contact Us

Missing bolts among issues that sparked Mexico City metro collapse, auditor finds

September 7, 2021 by David Barret Leave a Comment

September 7, 2021

By Cassandra Garrison

MEXICO CITY (Reuters) – A deadly Mexico City metro collapse in May was caused in part by missing bolts in beams in an overpass that already had deficiencies before a major earthquake, according to an independent auditor’s report released on Tuesday by the city government.

The analysis by Norwegian company DNV was the latest installment of its technical opinion on the May 3 collapse – Mexico’s biggest train accident in years – that killed 26 people when an overpass and train carriage suddenly plummeted onto a stream of cars near the Olivos station in the southeast of the city.

In the findings shared by Mexico City’s civil protection agency (SGIRPC), DNV said deficiencies including the lack of functional bolts over a significant stretch led to the buckling of north and south beams.

That led to the structure operating as two independent girders that took on weight it was not designed to handle.

“This created conditions that led to the distortion of the central transverse frame and the initiation and propagation of fatigue cracks that further reduced the capacity of the structure to support the load,” the report said.

Sections of the collapsed overpass were in “compromised condition” before a major 2017 earthquake that caused damage to parts of the metro, the report said.

DNV had been due to present its follow-up report on Aug. 23 but requested a two-week extension to complete its probe.

The metro was built by a consortium of Mexico’s ICA, Grupo Carso, a company controlled by the family of Mexican tycoon Carlos Slim, and French trainmaker Alstom SA.

Grupo Carso had no immediate comment on the report. A spokesperson for ICA did not immediately respond to a request for comment and a representative for Alstom could not immediately be reached.

(Reporting by Cassandra Garrison and Raul Cortes; Editing by Bill Berkrot)

Source Link Missing bolts among issues that sparked Mexico City metro collapse, auditor finds

David Barret
David Barret

Related posts:

  1. LG B1 OLED price, release date and specs
  2. HPE signs multi-billion dollar NSA computing deal
  3. American Eagle online sales drop on easing COVID-19 curbs, shares slump
  4. Tracking startup focus in the latest Y Combinator cohort

Filed Under: News

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

  • “Nobody Expected This”: Earth’s Rotation Will Speed Up Tomorrow, Bucking The Downward Trend
  • Chimps Are Sticking Grass In Their Ears And Rears As They Embrace “Pointless” Fad
  • Hui Te Rangiora: Old Māori Legend Suggests They May Have Discovered Antarctica 1,000 Years Before Europeans
  • “Potential Impact On Saturn”: Astronomers Appeal For Help As Video Appears To Show Object Hitting The Gas Giant
  • What Is Prosopometamorphopsia? The “Exceedingly Rare” Condition That Made A Patient See Faces As Dragons
  • Are We In An Enormous Void? It Could Explain What’s Wrong With Our Model Of The Universe
  • Woylies Boing Back Into Western Australia Thanks To Groundbreaking Wildlife Project
  • North America’s Oldest Pterosaur And Turtle Fossils Found In Arizona’s Petrified Forest
  • Proposed “Dark Dwarfs” Near The Galactic Center Could Reveal The Nature Of Dark Matter
  • Watch: 18-Kilometer-High Ash Cloud Looms Over Indonesia’s Mount Lewotobi Laki Laki After “Explosive” Eruption
  • “ShipGoo001”: Mystery Of Entirely New Lifeform Discovered Coating A Great Lakes Ship
  • Rare White Humpback Whale Calf Filmed By Drone Off Australia’s East Coast
  • Who Was Buried At Cave Of Salome: A Female Disciple, Jesus’ Midwife, Or A Princess?
  • “Hidden” Changes To US Health Data Swapping “Gender” For “Sex” Spark Fears For Public Trust
  • Easter Island Was Never As Isolated As We Thought – Study Puts That “Strange Argument” To Bed
  • If Birds Are Dinosaurs, Why Are None As Big As T. Rexes?
  • Psychologists Demonstrate Illusion That Could Be Screwing Up Our Perception Of Time
  • Why Are So Many Enormous Roman Shoes Being Discovered At Hadrian’s Wall?
  • Scientists Think They’ve Pinpointed Structural Differences In Psychopaths’ Brains
  • We’ve Found Our Third-Ever Interstellar Visitor, Orcas Filmed Kissing (With Tongues) In The Wild, And Much More This Week
  • Business
  • Health
  • News
  • Science
  • Technology
  • +1 718 874 1545
  • +91 78878 22626
  • [email protected]
Office Address
Prudour Pvt. Ltd. 420 Lexington Avenue Suite 300 New York City, NY 10170.

Powered by Prudour Network

Copyrights © 2025 · Medical Market Report. All Rights Reserved.

Go to mobile version