Miami Condo Collapse NEW Security Camera Video, Analysis Updates

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I used to work in a six deck parking garage as security many years ago, and I remember they used chains to rattle along the floor checking for hollow spots in the concrete (mid 1990s in southern Canada). Low tech, but surprisingly accurate. X-raying was used to confirm metal damage (which was caused by road salt de-icer runoff, which is highly corrosive; I'd argue stronger than seawater). Extreme thermal cycling (-35C to plus 30C or higher) on a yearly basis, plus salt water runoff from vehicles in winter makes for near time-lapse concrete and rebar damage. I was shocked at how many spots had to be chiseled out, rebar removed, replacement bar welded in place, then refilled with concrete. Very tedious. Then again, the same parking garage is over a national rail line, so if it went down it wouldn't have just been a local disaster, it would have cut part of a major transcontinental transportation line in the process. It struck home how important structural integrity is! Lots of mistakes were made at Champlain Towers South over the years, starting with its construction it seems. Your intel has been solid from day one. As always, excellent work, Jeff!!!

Jeff is a modern renaissance man, from Costco to Civil Engineering. Thank you for condensing the day long NIST presentation into this video update!

Hard to believe it's been 3 years already. Thanks for sharing this analysis.

Jeff I'm not an engineer but I love your explanations. So clear and precise for a layman to understand. Plus you have a great speaking voice. You have a career in radio awaiting you too.

Jeff, youre the best! youre the only one left covering this.

Also as a software engineer who's done some work with image processing, I want to say that the image processing work that produced so much evidence in this case is fantastically well done.

Thanks for following up on this again Jeff. I still get an eerie feeling because I used to drive by this building every day on the way to work when I lived in MB. The railing on the balconies always made these buildings stand out. RIP to those that were lost in this tragedy.

I was hoping you were going to post a video about the NIST update. Thanks for keeping up with this the entire time. It's amazing how people can let things get as far as they did with that place and scary to know it's happening elsewhere too.

You were right! Makes me understand all the annoying building inspections approvals when we made an addition

I have followed all your videos on the Champlain Towers collapse. This one is truly an excellent presentation. It is amazing how much information you gave us in a half hour video. It was also great to see that many of your original concepts matched the results of the complex analyses of the data. Good work as always.

What a Great video! We had a building that was immediately evacuated here in Myrtle Beach after that collapse, the people who lived there have never been allowed back in…

Wow, I understand counting frames and going frame by frame, but counting pixels is a whole new level of painstaking!

the frustrating thing is the creation of LLCs. Builders create an LLC then scatter like rats when its completed. No one will be found liable except for a few broke individuals; not any corporation.

As per usual, great presentation Jeff. That's alot of information to process. Can't wait for the next update.

Thanks for this follow up, been waiting for this one. Also I have to say, the NIST data presentation in this is top notch!

Jeff, I've been with you throughout this entire series regarding the collapse from the very beginning video. Thank you so much for making these updates and continuing to keep us informed all along the process! Your expertise has made this such an interesting journey with such clear and easy to understand narration. I know I speak for many others when I say a HUGE Thank YOU for your efforts on this project!! You've done an incredible job!

Thank u so much for compiling all this. I was following the collapse scenarios, videos and accounts since it happened but hadn’t looked for anything recently. This popped up on YT for me today thankfully as a reminder. I was wondering where the NIST investigation was at this point in time, so again, thank you.

Thanks Jeff for the complete look into this complex problem. This explains a whole lot of problems in that place.

Great video. All our prayers for those touched by this tragedy.