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Tacoma Narrows Bridge Collapse "Gallopin' Gertie"

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Watch the amazing "Gallopin' Gertie" November 7, 1940 video clip. 1940 Tacoma Narrows Bridge Slender, elegant and graceful, the Tacoma Narrows Bridge stretched like a steel ribbon across Puget Sound in 1940. The third longest suspension span in the world opened on July 1st. Only four months later, the great span's short life ended in disaster. "Galloping Gertie," collapsed in a windstorm on November 7,1940. The bridge became famous as "the most dramatic failure in bridge engineering history." Now, it's also "one of the world's largest man-made reefs." The sunken remains of Galloping Gertie were placed on the National Register of Historic Places in 1992 to protect her from salvagers. A dramatic tale of failure and success The story of the failure of the 1940 Narrows Bridge and the success of the Current Narrows Bridge is a great American saga. When Galloping Gertie splashed into Puget Sound, it created ripple effects across the nation and around the world. The event changed forever how engineers design suspension bridges. Gertie's failure led to the safer suspension spans we use today.

Channel: Travel & Events
Uploaded: November 30, 1999 at 12:00 am
Author: GonzoNugent

Length: 05:56
Rating: 4.79
Views: 762211

Tags: adventure  Bridge  Collapse  destination  Disaster  Engineering  Gallopin  Gertie  Gig  Harbor  landmark  log  nature  Puget  Sound  Tacoma  travel  Washington  

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Video Comments

999pingu111 (November 30, 1999 at 12:00 am)
Did they take the whole thing down because they couldn't rebuild it?
tro8Aoper (November 30, 1999 at 12:00 am)
resonance???
vinowns (November 30, 1999 at 12:00 am)
ooook
PhiberOptic (November 30, 1999 at 12:00 am)
Actually, the main problem that the bridge had was that the main supports were set along nodes (wikipedia: Node_(physics)). This allowed a standing wave to develop which got more dramatic as the wind speed increased.
kram021988 (November 30, 1999 at 12:00 am)
The first Tacoma Narrows Bridge opened to traffic on July 1, 1940. It collapsed four months later on November 7, 1940, at 11:00 AM (Pacific time) due to a physical phenomenon known as aeroelastic flutter caused by a 67 kilometres per hour (42 mph) wind.
SanJoseSharksNetwork (November 30, 1999 at 12:00 am)
The way the bridge was built allowed the wind not to pass causing this. A bridge like the Golden Gate Bridge has hole on the side of it. On this bridge you can see no passage for the wind to travel. Hate to have this happen to me. Look how this bridge turns. Well Hope No one has to go through something like galloping gertie again. Also I WILL be attending Youtube Live 2008 Hope to See YOU Dave
ElderScrolls500 (November 30, 1999 at 12:00 am)
walking their must be so much fun ^^
Ev3rliving (November 30, 1999 at 12:00 am)
The collapse actually wasn't caused simply by resonance, although viewing the video certainly suggests that. If you're interested, and know a little bit about differential equations, then you should look up the work done by Lazer and McKenna. If not, then well, just trust me on it. =D
Flystand (November 30, 1999 at 12:00 am)
Yeah, kinda emberassing that the engineerings didnt thought of or miscalculated resonance during their calculations.
ahmedsalah86 (November 30, 1999 at 12:00 am)
Thanks alot for clarifying what really happened to the bridge,,, i'm wondering though why it's engineers had not put that in concideration.

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