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[narrator] As water penetrat the granite exterior
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Engineering Catastrophes

As water penetrat the granite exterior, it began to erode the cement within. The cement,...

[narrator] As water penetrat the granite exterior, it began to erode the cement within. The cement, uh,
was mainly made of limestone

Full Transcript

00:00:01.000 --> 00:00:03.445
[narrator] As water penetrat the granite exterior,
00:00:03.447 --> 00:00:06.685
it began to erode the cement within.
00:00:06.687 --> 00:00:10.605
The cement, uh, was mainly made of limestone.
Duration
12 seconds
Views
14
Timestamp in Movie
00:20:19
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 • 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 • E09 Some of the joints between the columns were missing - Engineering Catastrophes 00:07
Some of the joints between the columns were missing
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,
S06 • E06 So the grout allows us to do that. - Engineering Catastrophes 00:39
So the grout allows us to do that.
S06 • E01 The trouble starts when the roof gets too thin - Engineering Catastrophes 00:07
The trouble starts when the roof gets too thin
S06 • E09 NARRATOR: The grout intended for these joints - Engineering Catastrophes 00:06
NARRATOR: The grout intended for these joints
S06 • E08 [narrator] So why had this historic dam failed so catastrophically? - Engineering Catastrophes 00:24
[narrator] So why had this historic dam failed so catastroph...
S06 • E10 [narrator] The investigation also revealed - Engineering Catastrophes 00:33
[narrator] The investigation also revealed
S06 • E01 [narrator] When that happens the soil above drops throug - Engineering Catastrophes 00:09
[narrator] When that happens the soil above drops throug
S06 • E03 There's only one reason why the concrete failed. - Engineering Catastrophes 00:59
There's only one reason why the concrete failed.
S06 • E02 And that was one of the reasons - Engineering Catastrophes 00:08
And that was one of the reasons
S06 • E07 NARRATOR: But the expansion joint isn't just exposed - Engineering Catastrophes 00:18
NARRATOR: But the expansion joint isn't just exposed
S06 • E09 Without it, the tower of columns would become unstable, - Engineering Catastrophes 00:07
Without it, the tower of columns would become unstable,
S06 • E01 [narrator] On the surface, the Westwood sinkhole - Engineering Catastrophes 00:23
[narrator] On the surface, the Westwood sinkhole