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Posted on 5/12/21 at 4:48 pm to weadjust
It’s interesting how the crack did not occur right at that riveted junction. That probably means something to civil engineers, of which I am definitely not.
Posted on 5/12/21 at 4:48 pm to RazorBroncs
As of this afternoon, they have shutdown all river traffic under the bridge. They must seriously expect it to fall soon
Posted on 5/12/21 at 5:10 pm to Jack Daniel
quote:
As of this afternoon, they have shutdown all river traffic under the bridge. They must seriously expect it to fall soon
It's probably a precaution to prevent any additional damage to the bridge if a barge were to hit the bridge supports
Posted on 5/12/21 at 5:18 pm to weadjust
How often do they inspect the bridge? They may not want to say, but if that occurred in the past week, past month, etc. all of a sudden
Also, is that building material the kind that reacts with elastic stretch before the break? Surely someone might have heard the break, maybe.
Maybe a person didn't hear the break, but with all the earthquake monitoring there, there might just be a different signature on one of the seismograph monitors. Better yet on several so they could triangulate and say, "The bridge, the bridge"
Also, is that building material the kind that reacts with elastic stretch before the break? Surely someone might have heard the break, maybe.
Maybe a person didn't hear the break, but with all the earthquake monitoring there, there might just be a different signature on one of the seismograph monitors. Better yet on several so they could triangulate and say, "The bridge, the bridge"
This post was edited on 5/12/21 at 5:21 pm
Posted on 5/12/21 at 5:38 pm to real turf fan
quote:
How often do they inspect the bridge?
I’ve read every year, I’ve also read every two years. Regardless, I’m curious if the crack was noted in prior inspections or occurred suddenly.
Posted on 5/12/21 at 5:53 pm to Cotten
Posted on 5/12/21 at 5:55 pm to Cotten
It depends on multiple conditions. Basically, every two years is standard but it could be a year or six months. Earlier I mentioned FCMs, which could change the requirement to one year even if the bridge is in mint condition otherwise.
The video in the OP mentions it was a contractor. They are usually hired for more thorough inspections (things like mag particle inspection on pins) that are required at longer intervals. Though the contractor could be doing a 'routine' inspection as some states aren't equipped to properly inspect a structure like this.
The video in the OP mentions it was a contractor. They are usually hired for more thorough inspections (things like mag particle inspection on pins) that are required at longer intervals. Though the contractor could be doing a 'routine' inspection as some states aren't equipped to properly inspect a structure like this.
Posted on 5/12/21 at 5:59 pm to real turf fan
quote:
Also, is that building material the kind that reacts with elastic stretch before the break?
I’m sorry maybe I’m being harsh but how can someone not know this? It’s carbon steel, what else would it have been?
It should have been something that was heard imo as it looks like a clean shear from fatigue but obviously that didn’t happen or no one reported it as we would know by now.
quote:
How often do they inspect the bridge?
Apparently only every two years which is a bit unnerving. Last inspected in 2019.
Posted on 5/12/21 at 6:01 pm to OBReb6
It was last inspected in September 2020.
Posted on 5/12/21 at 6:03 pm to CapstoneGrad06
I keep seeing conflicting info on this. I saw that somewhere and then TDOT said 2019. Idk
Posted on 5/12/21 at 6:04 pm to OBReb6
ArDOT says it was September 2020. Both share responsibility and costs on the bridge.
Posted on 5/12/21 at 6:10 pm to CapstoneGrad06
Just had to drive through Memphis. It’s a fricking shitshow
Posted on 5/12/21 at 6:14 pm to CarolinaGamecock99
Posted on 5/12/21 at 6:17 pm to CarolinaGamecock99
I’m not going to even attempt to go downtown for the foreseeable future
Posted on 5/12/21 at 6:22 pm to hubreb
quote:
The interstate bridges are inspected on a regular schedule every two years. During its previous inspection two years ago, Degges said the I-40 bridge was determined to be in “fair” condition.
That’s from the article you posted and part of what I was telling capstone about conflicting info. If I had to guess they probably have rigorous inspections every 2 years and have some other lower level visual inspections in between.
Also I bet they didn’t even get near completing their actual inspection when they spotted this obvious failure. I wonder what they’ll find when they continue on with mag particle inspections of the rest of the bridge.
Posted on 5/12/21 at 6:24 pm to OBReb6
quote:
That bridge is the most heavily trafficked freight bridge in the country.
Not even in the top 10
Posted on 5/12/21 at 6:27 pm to BourreTheDog
I think I was confusing it with 55 bridge in Memphis but also it was a while ago when I read that and have no idea what it is now
Posted on 5/12/21 at 6:36 pm to OBReb6
quote:
I think I was confusing it with 55 bridge in Memphis but also it was a while ago when I read that and have no idea what it is now
Just off the top of my head, the Tappan Zee over the Hudson River (I -287) and the I-95 bridge over the Delaware River have at least double the freight traffic over this one.
Y’all think Semi Traffic is bad on I-40, spend a day between Newark - Baltimore. It’s nuts
Posted on 5/12/21 at 6:43 pm to Bamafig
quote:
It’s interesting how the crack did not occur right at that riveted junction.
The beam area just to the left of the riveted section looks pretty bad as well.
Wonder if they will be able to add some riveted mending plates over the crack.
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