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NARRATOR: Instead of raising the level on
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Engineering Catastrophes

Instead ofraising the level on the Swiss side bythe required 10.5 inches, engineers went...

NARRATOR: Instead of
raising the level on the Swiss side by
the required 10.5 inches, engineers went the other way, lowering it by a further 10.5, meaning the bridge was now
out by more than 21 inches

Full Transcript

00:00:01.000 --> 00:00:02.007
NARRATOR: Instead of raising the level on
00:00:02.007 --> 00:00:06.133
the Swiss side by the required 10.5 inches,
00:00:06.199 --> 00:00:08.000
engineers went the other way,
00:00:09.166 --> 00:00:11.967
lowering it by a further 10.5,
00:00:11.967 --> 00:00:16.299
meaning the bridge was now out by more than 21 inches.
Duration
17 seconds
Views
18
Timestamp in Movie
00:39:46
Uploaded
Oct 28, 2025
Season
6
Episode
7
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 Every petal has to be perfectly balanced, - Engineering Catastrophes 00:26
Every petal has to be perfectly balanced,
S06 • E09 The problem wasn't the construction, which, - Engineering Catastrophes 00:08
The problem wasn't the construction, which,
S06 • E03 [Simon] This ice was moving slowly, but with immense power, almost like a glacier - Engineering Catastrophes 00:16
[Simon] This ice was moving slowly, but with immense powe...
S06 • E09 It was all about the movement mechanism inside, - Engineering Catastrophes 00:08
It was all about the movement mechanism inside,
S06 • E06 {\an8}Despite the evidence, undermining the arch, - Engineering Catastrophes 00:32
{\an8}Despite the evidence, undermining the arch,
S06 • E05 And these voids can be filled with water, - Engineering Catastrophes 00:34
And these voids can be filled with water,
S06 • E04 [narrator] The initial failure was caused by water logging. - Engineering Catastrophes 00:06
[narrator] The initial failure was caused by water logging.
S06 • E07 I would say 99.9 percent of all cases, - Engineering Catastrophes 00:14
I would say 99.9 percent of all cases,
S06 • E04 was specifically designed - Engineering Catastrophes 00:26
was specifically designed
S06 • E03 [narrator] The mountain of i was beyond the limits - Engineering Catastrophes 00:12
[narrator] The mountain of i was beyond the limits
S06 • E09 FOSTER: The bars or ribs are driven by hydraulic motors, - Engineering Catastrophes 00:09
FOSTER: The bars or ribs are driven by hydraulic motors,
S06 • E02 The decision was made to keep the roof closed. - Engineering Catastrophes 00:28
The decision was made to keep the roof closed.
S06 • E07 WALKER: So one side had to say to the other, "Sorry, - Engineering Catastrophes 00:12
WALKER: So one side had to say to the other, "Sorry,
S06 • E03 They had checked before. They knew where the water had come up typically. - Engineering Catastrophes 00:08
They had checked before. They knew where the water had co...
S06 • E03 [narrator] But in fact, ther may have been prior warning that this could happen. - Engineering Catastrophes 00:30
[narrator] But in fact, ther may have been prior warning ...
S06 • E07 NARRATOR: With the two countries - Engineering Catastrophes 00:06
NARRATOR: With the two countries
S06 • E10 So when they jacked it up, they had to infill that with a steel plate - Engineering Catastrophes 00:07
So when they jacked it up, they had to infill that with a st...
S06 • E06 This construction was so big that, once filled, - Engineering Catastrophes 00:11
This construction was so big that, once filled,
S06 • E05 This means they don't drain very well. - Engineering Catastrophes 00:39
This means they don't drain very well.
S06 • E04 {\an8}With the ditch full, the water couldn't drain properly - Engineering Catastrophes 00:34
{\an8}With the ditch full, the water couldn't drain pro...