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[narrator] When the bridge was built
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Engineering Catastrophes

And here, after 40 years, river water had infiltratedthe concreteinside the foundation

[narrator] When the bridge was built, the granite shell hadn't been sealed against the river. [Greg] And here, after 40 years, river water had infiltrated
the concrete
inside the foundation

Full Transcript

00:00:01.000 --> 00:00:02.791
[narrator] When the bridge was built,
00:00:02.793 --> 00:00:05.718
the granite shell hadn't been sealed against the river.
00:00:06.072 --> 00:00:08.504
[Greg] And here, after 40 years,
00:00:08.506 --> 00:00:13.358
river water had infiltrated the concrete inside the foundation.
Duration
14 seconds
Views
13
Timestamp in Movie
00:20:07
Uploaded
Oct 28, 2025
Season
6
Episode
3
Genres
documentary
Production
Moviecoop

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Movie Summary

With access to all phases of design and a large cast of experts, some of the great failures of engineering history are uncovered.
S06 • E01 [Simon] Wherever it is, there's one key feature, - Engineering Catastrophes 00:07
[Simon] Wherever it is, there's one key feature,
S06 • E07 We're looking at a model to show the primary components of - Engineering Catastrophes 00:10
We're looking at a model to show the primary components...
S06 • E06 Supporting the columns above, meaning that the bolts are essentially redundant. - Engineering Catastrophes 00:08
Supporting the columns above, meaning that the bolts are ess...
S06 • E09 NARRATOR: The crane's impact may or may not - Engineering Catastrophes 00:12
NARRATOR: The crane's impact may or may not
S06 • E05 [narrator] A judicial inquiry was launched - Engineering Catastrophes 00:32
[narrator] A judicial inquiry was launched
S06 • E10 From an engineering perspective, - Engineering Catastrophes 00:11
From an engineering perspective,
S06 • E01 Limestone interacts with the acidic rainwater - Engineering Catastrophes 00:23
Limestone interacts with the acidic rainwater
S06 • E02 [narrator] When the heavy barges struck the pier. - Engineering Catastrophes 00:07
[narrator] When the heavy barges struck the pier.
S06 • E06 We don't want the building structurally - Engineering Catastrophes 00:10
We don't want the building structurally
S06 • E08 [narrator] Thankfully despite the sudden and dramatic collapse, - Engineering Catastrophes 00:17
[narrator] Thankfully despite the sudden and dramatic collap...
S06 • E03 [narrator] As water penetrat the granite exterior, - Engineering Catastrophes 00:12
[narrator] As water penetrat the granite exterior,
S06 • E09 Some of the joints between the columns were missing - Engineering Catastrophes 00:07
Some of the joints between the columns were missing
S06 • E02 [crashing] - Engineering Catastrophes 00:20
[crashing]
S06 • E07 The I-beam, or girder, was bolted - Engineering Catastrophes 00:07
The I-beam, or girder, was bolted
S06 • E10 [Greg] Engineering is all about compromise. - Engineering Catastrophes 00:11
[Greg] Engineering is all about compromise.
S06 • E06 We want the beams to act like one long beam structurally. - Engineering Catastrophes 00:07
We want the beams to act like one long beam structurally.
S06 • E09 CUETO: The grouts were not properly installed - Engineering Catastrophes 00:10
CUETO: The grouts were not properly installed
S06 • E04 [narrator] Another possible factor is the precise way - Engineering Catastrophes 00:50
[narrator] Another possible factor is the precise way
S06 • E03 During the 40 years, part of the limestone washed out. - Engineering Catastrophes 00:13
During the 40 years, part of the limestone washed out.
S06 • E07 You've got expansion and contraction, - Engineering Catastrophes 00:12
You've got expansion and contraction,