Page 841 - Cable Stayed Bridge News Today

Says the cause of the collapse was torsional flutter or aerodynamic instability. >> that was the vice that took the bridge down. this was a condition that no structure can maintain for a significant period of time. >> gertie is replaced by a stronger bridge in 1950, ten years after the collapse. but a part of it still survives. >> this is the side span, the approach span. this is the original galloping gerties 1940 bridge. you can see the two eight-foot-deep section. >> many lessons are learned ...

Yes, i have an emergency at the green point bridge construction site. >> whats wrong? a crane arm snaps, leaving three people dangling underneath the danes point bridge nearly 150 feet above the st. johns river in jacksonville, florida. when fire division chief randy napoli arrives just minutes later, he knows he has his work cut out for him. >> i could see that basket dangling, and i thought we could lose the arm and the three

Dramatic. >> but some find that wave-like motion harrowing. >> as you drove across the bridge, you could look ahead and the car in front of you maybe 100 yards would absolutely disappear as you went down into the bottom of one of these troughs. it was unnerving to a lot of drivers. many who crossed the bridge swore it would be the last time. and on that windy autumn day in 1940, it is the last time anyone crosses that bridge. >> about 10:00, the bridge began to move in ways it had not moved be...

And many of the things that exist on the 1950s bridge are a tribute to better aerodynamic stability. >> in 2007, a twin bridge is completed. the architectural look of both structures resembles the original gertie, a tribute to her grace and elegance. >> so that new bridge, as well as others have been constructed since 1940, are part of galloping gerties legacy. coming up -- an iceberg implodes in front of a group of tourists, sending them scrambling for safety. >> were all shouting and screami...

Concerned about the bridge, so he began to help initiate studies by the professor at the university of washington that began to closely examine the bridges movement. >> remedies are attempted before and after the bridge opens. >> they added cable tie downs at each end of the bridge on the approach spans. they did a good job of holding the approach spans in place. but the rest of the bridge across the center span still moved a lot. >> professor farquharson also issued an in-depth bridge study and...

It may look like special effects from an old hollywood movie, but this is real. a massive steel and concrete bridge sways and buckles, leaving commuters desperate to escape before it collapses. >> it was breathtaking. it was frightening. >> november 7th, 1940, tacoma, washington.

Scouts three months ago, was re kind of a cool story hour.

For all seasons. the hollywood star has been inspiring generations for more than 50 years through the many films and television projects hes performed in. his greatest role, thats in being himself. man on a mission. challenging people to eradicate racism and learn to live in unity and harmony. save the planet and live beyond the dream. >> every time i say understand, i want the whole group to say yes, sir. understand? >> yes, sir. >> understand? >> yes, sir. >> before winning an oscar for his ro...

Submarine searches, and even an exorcism. >> be gone now, hideous demon. >> but nessie has remained a no-show. >> i think the legend is popular because we see dragons. and also, in a way, we like our mysteries to be something we can half comprehend as well. loch ness is one of the places where anybody can come. theres a road around it. its not the antarctic. its not outer space. its not the bottom of the ocean. looking for monsters in a lake with a road around it is a mystery we can all join in ...

Design, were talking about the cost. josh reports from california. >> youre going to want to pay attention here because these are literally your tax dollars at work. were just off the brand new bay bridge. an architectural marvel connecting san francisco with oakland. the bridge came in billions of dollars overbudget and behind schedule. in the send, it actually cost thousands of american jobs. how did that happen? well buckle your seat belt. and you might want to get a good grip on your wallet ...