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When we build buildings, we have to wash the rocks in the concrete
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Engineering Catastrophes

When we build buildings,we have to wash the rocksin the concrete and make sure we getthe...

When we build buildings,
we have to wash the rocks
in the concrete and make sure we get
the salt out of it down
to a very low level, so that we don't have
salt in the concrete
attacking the steel

Full Transcript

00:00:01.000 --> 00:00:06.834
When we build buildings, we have to wash the rocks in the concrete
00:00:06.009 --> 00:00:11.501
and make sure we get the salt out of it down to a very low level,
00:00:11.501 --> 00:00:16.634
so that we don't have salt in the concrete attacking the steel.
Duration
18 seconds
Views
18
Timestamp in Movie
00:31:39
Uploaded
Oct 28, 2025
Season
6
Episode
4
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 • E08 [narrator] The problem was in the scale - Engineering Catastrophes 00:21
[narrator] The problem was in the scale
S06 • E07 {\an8}The repair costs were estimated to - Engineering Catastrophes 00:08
{\an8}The repair costs were estimated to
S06 • E01 [narrator] But this was a tried and true technique throughout this region. - Engineering Catastrophes 00:23
[narrator] But this was a tried and true technique throug...
S06 • E07 The good news is that the damage - Engineering Catastrophes 00:07
The good news is that the damage
S06 • E09 So in embankment dams, best practice of engineers is to put - Engineering Catastrophes 00:12
So in embankment dams, best practice of engineers is to put
S06 • E02 [narrator] In December, 2021, - Engineering Catastrophes 00:13
[narrator] In December, 2021,
S06 • E03 [narrator] With massive structures, engineers build to survive every eventuality - Engineering Catastrophes 00:12
[narrator] With massive structures, engineers build to su...
S06 • E10 [narrator] Developers have stated - Engineering Catastrophes 00:16
[narrator] Developers have stated
S06 • E07 NARRATOR: Meanwhile, many hope the countrywide problems with - Engineering Catastrophes 00:11
NARRATOR: Meanwhile, many hope the countrywide problems with
S06 • E05 So, which, of course, created instability of the crane - Engineering Catastrophes 00:07
So, which, of course, created instability of the crane
S06 • E04 [narrator] In the case of this building, - Engineering Catastrophes 00:10
[narrator] In the case of this building,
S06 • E08 [narrator] This layer of softer ground, - Engineering Catastrophes 00:41
[narrator] This layer of softer ground,
S06 • E05 {\an8}Whatever the reason for the change, - Engineering Catastrophes 00:09
{\an8}Whatever the reason for the change,
S06 • E09 So what they did is the valve is - Engineering Catastrophes 00:06
So what they did is the valve is
S06 • E01 So, in these conditions, it seems the glue just wasn't working properly. - Engineering Catastrophes 00:08
So, in these conditions, it seems the glue just wasn't ...
S06 • E06 [narrator] And citywide, discussions are underway - Engineering Catastrophes 00:29
[narrator] And citywide, discussions are underway
S06 • E04 So it had a high content of salt, which attacked the steel. - Engineering Catastrophes 00:06
So it had a high content of salt, which attacked the steel.
S06 • E03 Like this catastrophe on the Niagara River, which divided two nations. - Engineering Catastrophes 00:20
Like this catastrophe on the Niagara River, which divided...
S06 • E09 That means all the pipe going upstream to the reservoir was - Engineering Catastrophes 00:15
That means all the pipe going upstream to the reservoir was
S06 • E05 [narrator] In the aftermath of the catastrophe, - Engineering Catastrophes 00:17
[narrator] In the aftermath of the catastrophe,