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NARRATOR: The faulty seal and lack of protective
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Engineering Catastrophes

The faulty sealand lack of protective concrete were compoundedby a third problem -- the...

NARRATOR: The faulty seal
and lack of protective concrete were compounded
by a third problem -- the location of the valve on
the outflow pipe subjected it to exceptionally
high water pressure

Full Transcript

00:00:01.000 --> 00:00:03.166
NARRATOR: The faulty seal and lack of protective
00:00:03.266 --> 00:00:06.005
concrete were compounded by a third problem --
00:00:06.567 --> 00:00:09.001
the location of the valve on the outflow pipe
00:00:09.001 --> 00:00:12.003
subjected it to exceptionally high water pressure.
Duration
13 seconds
Views
14
Timestamp in Movie
00:31:37
Uploaded
Oct 28, 2025
Season
6
Episode
9
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 • E04 When we build buildings, we have to wash the rocks in the concrete - Engineering Catastrophes 00:18
When we build buildings, we have to wash the rocks in the co...
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 • E04 [narrator] In the case of this building, - Engineering Catastrophes 00:10
[narrator] In the case of this building,
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 • 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