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[narrator] After the Lake Dunlap dam failed in Texas
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Engineering Catastrophes

After the Lake Dunlap damfailed in Texas, investigators discoveredthat crucial pins from...

[narrator]
After the Lake Dunlap dam
failed in Texas, investigators discovered
that crucial pins from the safety gates
were dangerously weak. Larry Johnson
and Harry Moeller
know the case. As it turned out,
one of the critical pieces
was always underwater

Full Transcript

00:00:01.000 --> 00:00:04.333
[narrator] After the Lake Dunlap dam failed in Texas,
00:00:04.399 --> 00:00:07.000
investigators discovered that crucial pins
00:00:07.000 --> 00:00:10.003
from the safety gates were dangerously weak.
00:00:10.003 --> 00:00:13.003
Larry Johnson and Harry Moeller know the case.
00:00:13.003 --> 00:00:16.933
As it turned out, one of the critical pieces was always underwater.
Duration
18 seconds
Views
21
Timestamp in Movie
00:22:08
Uploaded
Oct 28, 2025
Season
6
Episode
8
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 • E10 The piling wall is buried more deeply - Engineering Catastrophes 00:45
The piling wall is buried more deeply
S06 • E07 Eventually, bit by bit, - Engineering Catastrophes 00:12
Eventually, bit by bit,
S06 • E01 [narrator] While Matthew has moved out and moved on, - Engineering Catastrophes 00:11
[narrator] While Matthew has moved out and moved on,
S06 • E06 As one stack of columns started to collapse, - Engineering Catastrophes 00:09
As one stack of columns started to collapse,
S06 • E09 Quality control is essential to - Engineering Catastrophes 00:06
Quality control is essential to
S06 • E02 [Nehemiah] With the motorists' warning system, - Engineering Catastrophes 00:12
[Nehemiah] With the motorists' warning system,
S06 • E09 Any issues that are not addressed during construction - Engineering Catastrophes 00:07
Any issues that are not addressed during construction
S06 • E06 This really did come down like a house of cards. - Engineering Catastrophes 00:05
This really did come down like a house of cards.
S06 • E09 KWAMI: Failures like this are a reminder that every - Engineering Catastrophes 00:09
KWAMI: Failures like this are a reminder that every
S06 • E04 [narrator] In big construction, every element - Engineering Catastrophes 00:24
[narrator] In big construction, every element
S06 • E01 It's either by putting fill material in there - Engineering Catastrophes 00:28
It's either by putting fill material in there
S06 • E08 And it was imbedded in the concrete. - Engineering Catastrophes 00:16
And it was imbedded in the concrete.
S06 • E02 [narrator] More than 20 years later for Robert and others, - Engineering Catastrophes 00:20
[narrator] More than 20 years later for Robert and others...
S06 • E06 [narrator] After the investigation, - Engineering Catastrophes 00:43
[narrator] After the investigation,
S06 • E09 The key is to identify them - Engineering Catastrophes 00:07
The key is to identify them
S06 • E05 [narrator] The weight of the bridge's materials - Engineering Catastrophes 00:13
[narrator] The weight of the bridge's materials
S06 • E03 [narrator] With big infrastructure, - Engineering Catastrophes 00:12
[narrator] With big infrastructure,
S06 • E07 They would push the raised section back - Engineering Catastrophes 00:08
They would push the raised section back
S06 • E09 NARRATOR: With big construction, - Engineering Catastrophes 00:14
NARRATOR: With big construction,
S06 • E08 They've been underwater since the late 20s. - Engineering Catastrophes 00:19
They've been underwater since the late 20s.