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-Short Attention Span Theater-
I-85 Bridge Collapses in Atlanta Freeway Fire During Rush Hour
2017-03-31
[NBC] A massive fire caused a bridge to collapse Thursday night on Interstate 85 in Atlanta, one of the busiest stretches of roadway in America, backing up rush hour traffic for several miles and creating what the mayor called a long-term "transportation crisis."

The huge fire was reported at 6:21 p.m. ET underneath the bridge on the northbound side -- near where the interstate merges with another major artery, State Highway 400 -- forcing authorities to close the interstate and turn drivers around during the evening rush.
Posted by:Besoeker

#15  Heat causes concrete to pop and flake. Take a cutting torch to concrete and you better have safety glasses because the flakes will travel pretty fast and far.

Concrete will also crack at low temperatures. That is why there are creases in the sidewalk. To try to make sure if concrete is going to crack, it cracks at the crease and not in the panel itself. That is called controlling the random, unpredictable cracking of concrete.

When you add heat to concrete for a period of time, it pops off and fault lines appear everywhere, and then collapses if elevated. Taking the rebar down with it.
Posted by: Ebbuger Hatfield7637   2017-03-31 19:22  

#14  Spalling of concrete due to fire.
Posted by: Besoeker   2017-03-31 16:36  

#13  Let's be honest jihadis are crap and could cause a lot more economic damage with a bit of what they lack i.e. thought power.
Posted by: Bright Pebbles   2017-03-31 15:50  

#12  add to #11, Rosie's "Expert" Credentialsâ„¢:
While she attended Commack High School, O'Donnell was voted homecoming queen, prom queen, senior class president, and class clown.[3] During high school she began exploring her interest in comedy, beginning with a skit performed in front of the school in which she imitated Gilda Radner's character Roseanne Roseannadanna.[2] After graduating in 1980, O'Donnell briefly attended Dickinson College, later transferring to Boston University before ultimately dropping out of college.[3]
Posted by: Frank G   2017-03-31 15:24  

#11  That was my big question. What could provide a fuel source that would crack the concrete and melt internal reinforcing (as obviously happened). I mean even Jet fuel can't do that - Or so our expert celebrities say
Posted by: Frank G   2017-03-31 15:21  

#10  Here's the stuff that seems to have been set alight. From the AJC.
Posted by: Classical_Liberal   2017-03-31 14:58  

#9  My wife had a premonition yesterday and prayed for our son and her parents in Atlanta.
Posted by Ptah


If she has any future premonitions involving a southerly arc down I-85, please post it here or ring me up.
Posted by: Besoeker   2017-03-31 12:45  

#8  My younger son had gone over the section that collapsed two hours earlier. My wife had a premonition yesterday and prayed for our son and her parents in Atlanta.
Posted by: Ptah   2017-03-31 11:52  

#7  This gonna suck so bad for so long.

Thankfully I'm Alpharetta to Dunwoody and done
Posted by: Beavis   2017-03-31 11:28  

#6  Seems the Congressional caucus of Atlanta needs to visit the White House for some highway funding. That could be interesting.
Posted by: Procopius2k   2017-03-31 11:08  

#5  So, Frank G, are you going to Atlanta?
Posted by: Rambler in Virginia    2017-03-31 10:05  

#4  It's really difficult to exaggerate how big of a mess this is going to create in Atlanta. About the only thing that could cause as many problems is messing up the Airport.
Posted by: Beau   2017-03-31 09:47  

#3  They probably tried to put the (PVC/Plastics stored under the bridge) fire out with water. Should have used FOAM (link).
Posted by: Elmomotle Smiter of the French2165   2017-03-31 01:31  

#2  The huge fire was reported at 6:21 p.m. ET

Around hobo supper time.
Posted by: Besoeker   2017-03-31 00:36  

#1  Posh! Everybody knows fire can't melt steel (or reinforcing in concrete)!
Posted by: Frank G   2017-03-31 00:31  

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