FAST Clearing Key Bridge Collapse Debris
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- Опубликовано: 20 май 2024
- Jeff Ostoff shows you videos and photos released by the US Army Core of Engineers showing the removal of large sections of the sunken Francis Scott Key bridge collapse debris and trusses. Conspiracy theories about the Francis Scott Key bridge collapse are also discussed.
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00:00 Chesapeake 1000 crane moves large truss section of Key Bridge
03:32 Which bridge truss section was moved?
04:57 Conspiracy theories, why they exist, false evidence 
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🎥 Watch Next:
🎥 StreamTime LIVE Baltimore 24-hour cam video on Key Bridge Salvage: ruclips.net/video/2sv7SA2Ybgg/видео.html
🎥 FIU Bridge Collapse: WORST Engineering Blunders Ever: ruclips.net/video/RS5XxwKIx-U/видео.html
🎥 SCARY Crane Collapse Fell Off Tower, Fort Lauderdale, FL ruclips.net/video/A-N3fEQwjwo/видео.html
🎥 Titan Sub NEW Air Force Audio: An SOS For Help? ruclips.net/video/1IJYQpVWY0A/видео.htmlsi=dOwyBsYNhW3MjR_w
🎥 LEAKED Titan Sub Transcript Shows Crew In Battle For Lives: ruclips.net/video/4Dj8IJbP41c/видео.html
Thank you so much for all your hard work!
God bless you, Jeff, and your loved ones in the Holy Name of Jesus Christ!✝️🙏❤️
As a offshore crane op for 45 years, you never ever work to your limits. The reason is...if something goes wrong and you are on your limit, you have nothing to get you out of trouble. Always allow youself room for the unexpected.
I'm a land based mobile. And your very right. We had a keep it low keep it slow moto.
However , I can put it 12,or 14 inches to ground to shed load. You dont have such luxury when its 1200 feet to the bottom.
I agree they would try to avoid lifting at maximum capacity. They won't have an exact weight of the piece until they start lifting it although they should be able to estimate it very closely. The pieces will also exert more force on the crane out of the water than they do when submerged. Roughly, steel that weighs 7 pounds while submerged in water will weigh 8 pounds out of the water.
@@tiredoldmechanic1791 Exactly, sea water has more buoyancy than fresh water. The weight of the load is an estimate. If any of it is tubular, it would be full of water, adding more weight to the load. The engineers will have taken all this into the equation.
@@stephenmckelvie2032 to that I would add , that in my marine experience, we pick it up a few inches at a time. Watch the scale and see if the load lightens up. This would indicate either water draining or mud falling off. Once its stable , carry on.
That statement holds true for most things - if you are running on the ragged edge, there's no room to correct anything unexpected that happens
"The Cranes are over-kill on capacity", better than having one collapse and cause more damage...
Overkill is underrated
and a 1000 tons crane is by far not even the maximum what is possible espacially for maritim cranes...
I agree.
seems when we make big picks they cut corners on price and setup. Seen on alot of jobs have a crane that just makes the pick.
it's not just the crane's "lift" capacity that's important,it's also the "reach" ability,these large cranes have.
Thanks for another informative video and I agree whole heartedly with your reaction to uniformed comments and conspiracy theories. To put things in perspective a floating crane with a capacity of 1000 short tons is not particularly big. The "Thialf" (built 1985) has a displacement of 136,709 long tonnes and a lifting capacity of 14.200 long tonnes. The "Sleipner" (a semi-submersible vessel) has a displacement 237,700 long tonnes and has two cranes with a total lifting capacity of 20,000 long tonnes. The Pioneering Spirit" has a displacement of 365,000 long tonnes, it has two lift systems the forward one has a capacity of 48,000 tonnes and is designed for the installation or removal of offshore platforms. The biggest lift to date was The "Brent B" topsides which weighed 45,000 tonnes. The aft lift system is for the removal of platform jackets (legs) and has a capacity of 28,000 tonnes.
*_The three types are all a measure of mass (weight) the short ton aka US ton is 2,000/lbs. The long ton aka Imperial (British) ton is 2240 lbs. The third ton is the metric tonne which is, equal to 1000 kilograms, or approximately 2204 pounds._*
Look up KIP's . Engineers love that one. They just make crap up to screw with crane operators. I know it's right but it is weird to look at when you first see it. It's a kilo-pound but it's a force and a weight so they use it for concrete loads and their stuff too. We tried to go metric in the 1990's but people were too dumb to convert it right so we just stuck with standard.
@@williamrosenow6176 We give forces for some of our engineering calculations in KSI, though we do give the thrust of our product in single pounds, so it sounds larger.
Jeff,
When the lifting capacity says 1000 T @ 63'. It excludes the weight of lifting gear. As the lift radius increases, the lift capacity decreases. Lift radii at the channel may be at the 63'. Depending on where they land the bridge at Sparrows Point you may see the actual size of the load decrease.
During a building project, I worked on the largest crane that had a lift capacity of 250 tons. We surveyed a 150-ton section of the ship one day, The next day the unit was cut in half. The 250 tons was when the boom was nearly vertical. The section was to be placed in the center of the dock. At the centerline, the lift capacity was reduced to 80 tons.
Bob
Yeah, I worked for a bridge and road contractor for about 6 months. The guys taught me the hand signals, but didn't explain the angle of the boom and the length of the boom extending. The crane operator explained it all to me and then things went well. Operating a crane on the water has to be pretty nerve wracking!
It's still a bloody big crane.
seems like they would keep it to 60% of the load chart 600ton with the rigging and you have to think about the weather and reduce for that also. And with OSHA Coast Guard and state and all the cameras watching going to be extra careful.
@SunnySunny-jz8kg
My guess is the 1000 T already has a margin added. There may also be some reduction based on the rigging and the block they are using. There is a difference based on say a 10 to 1 vs a 5 to 1. For instance, our deck cranes had to lift 15 MT @ 1 m off the ship's side. I asked the manufacturer's representative what the maximum lift was at the lowest radius. He said if rigged for maximum lift it would be rated at 100 MT.
There is another weight they have to consider and that's water. Based on the videos, it looks like much of the structure is tubular in section. I guess that when calculating the weights for the lifts where the sections are below the waterline they are assuming the sections are flooded and are adding additional margins for the weight of water.
Sheet said at the maximum radius of 63'. It can lift m9re than 1000 if not at 63'.
Remember the old Far Side cartoon: on the internet, no one knows you're a dog. Consider that when you get messages saying you don't know what you're talking about; they may have come from a golden retriever.
A golden retriever would never say something like that.
@@markvoelker6620 Can confirm that golden retrievers are good boys and girls, not internet trolls. 🦮🦮
@@markvoelker6620 More like something a Poodle would say.
@@gravelydon7072 😂👍
@@markvoelker6620 Yes, you're right. I've never met such a disagreeable golden retriever.
Excellent videos on the Key Bridge collapse. Great commentary re the "conspiracy theories" also. This ship had suffered propulsion failures in the past and those issues had shown up some in previous inspections but evidently not remedied in any good way. That ship had a pilot in command who was licensed to guide large ships into and out of that harbor. Can you imagine what was going through his mind when they lost power and steering. He did order them to drop the port anchor but 110,000 tons moving at 8 knots is not going to be stopped in any short distance. The inertia involved in that was just huge. And the lack of protection of the piers holding up the continuous truss was also a huge factor. I have google searched and seen a number of photos of the construction of that bridge. Some falsework was involved but it was mostly constructed as true cantilever bridge over the shipping channel. Amazing how the engineers design a cantilever so it has to be balanced as it is built away from the supports. Thanks for the nice videos. Your FIU bridge one was outstanding as these ones are.
Thanks for addressing / going over dodgy issues.
Thanks for watching William!
Thanks Jeff for addressing this issue. It’s really a shame people can be complete disrespectful jerks. Maybe they just stopped yammering and listen, they might just learn something.
The three central spans weights 50 million pounds, 22,500 tons, truss and deck. Since there was 44 60 feet long panels (a truss panel is the distance between two verticals), each panel weights ~500 tons. In this 60 feet long section of the bridge the deck structure, reinforced concrete slab plus girders/stringers (and hangers under the central 1,200 feet tied truss arch) probably weights 250-300 tons. So each 60 feet long bridge panel (both parallel trusses, top and bottom chords plus verticais and diagonals plus Wind/sway bracings) weights 200-250 tons. In this case for safe precautions even a 1,000 short ton crane lifts only a fraction of its rated capacity, i guess.
Great of you to show how to help the video source
Incredible stuff happening at that site. Hat's off to you for taking YOUR time to search this all out, put the video together AND sharing with us!!! I agree on the rumor mill too. Don't let the naysayers get to ya... they have no clue.
The operating radius is the key to establishing the crane’s lifting capacity. A greater radius means less can be lifted.
Hi Jeff, from Sydney, Australia. What an excellent, elegant, blunt reprimand to the fools and conspiracy theorists. I've watched now all you doco's , started with Champlain towers when one of yours randomly appeared on my YT list a couple of years back. Then I watched all the early ones, and all the current new ones, why?? as you are well researched and present honest fact, you cannot better that. Regards, and keep up the good work .
I am so glad you spoke about the misinformation that is rampant today. It seems that almost everyone is an expert on almost everything! The result is that no one is an expert and there is little if any respect for expertise or knowledge in an area.
There are sooo many little kiddies in granny's basement with internet and no parents or teachers to restrict their imagination or foul language.
Thank you for keeping up with this and keeping us up to date. You're a fantastic source of information and you absolutely don't need to be explaining yourself to ignorant people in the comment section, but I'm glad you stood up for yourself. If you don't like someone's comment, delete it. Don't give it the attention it wanted.
This is so informative! Great job, fantastic reporting!🌻🌼🐝 Keep it up 🙌
Some people think they know it all, but they haven't a clue what they"re talking about. It's clear you have done your homework on this stuff. Love this channel. Keep it up!
Between you and Sal at What's Going on with Shipping I feel I'm getting the facts.
Nice job Jeff! I appreciate what you do
The scale of everything is mind boggling.
The captains of these tugboats are simply amazing. Super job!
Uninformed is ignorance. Ignorance can be educated. Stupidity is forever.
Love this!
Yep, you can't fix stupid.
I have started calling it "willful ignorance".
The "explosions" referred to must be the flashing lights on the construction vehicles on the bridge. Conspiracy theorists need eye exam. lol
I love semantics. It's all about WORDS. Words are after all only symbols representing reality. Words themselves are NOT reality. Looks like semantic games are forever. Stupidity is simply a normal element of human nature. One can have 10 Phds and still be stupid about lots of other things.
Re: arrogant comments......Some people are ignorant, Jeff, and some wilfully. Very sad, really! Great job! Great page!
Always at the top of your game, Jeff. Thanks for the update.
Jeff, I bookmark every video you produce. Your presentations are the best. Great explanations and no BS. Thank you.
Glad you like them!
The large piece that is laying on the ship, when they cut that will it fall down into water? Will they reinforce it before they cut it. Looks by pictures nothing holding it up but ship. Just curious.
Now I understand what the expression 'heavy lifting' means. An incredible achievement to get to this stage of the process.
But all time, a terrible thing that a perfectly good bridge was destroyed and lives of the workers lost.
I have to say I always pickup something from your videos. I'm no engineer but you're very knowledgeable about this stuff. I got a chuckle out of the "1000" being right in the cranes name too. 😂
I find you always do your homework. Thanks for your time making these videos. Keep it up.
Jeff - thank you for keeping us up to date. Nice work. Joe M.
Any time!
Wow. Quite an operation.
Don’t let people that love to criticize get you down. They need to know their facts first before they open their mouths.
Thanks for sharing this! These folks are amazing!
Great job Jeff....love ur vids!
Lots of folks just don't have any idea what they are talking about nor what they are hearing. That is how you, Jeff, get a lot of messages etc. questioning your facts. Now, lets see, there are 4 other barge cranes in the area but they bring in this one that can hold 1,000 tons. Maybe that is because the other 4 barges with cranes cannot lift and deal with 1,000 tons or that they are smaller capacity. That would explain it. They need the correct crane for the job.
Google Manson Construction Derrick P E Paup. 1,000ton full revolving. In the Gulf
Yup, but I heard the E.P. PUAP currently on a contacted job in the gulf and was unavailable for booking to bring it to Baltimore
Great information about where the limited access channel will be, and pictures. Thank you
Nice, sane assessment of the situation. Thank you.
I love the idea that you deal in facts which is what keeps me coming back. I don't have time to deal with idiots and conspiracy crap.
Thanks for dealing with the facts only!
Thank you Jeff
Always great and accurate content. I look forward to your every video because I know you are “the man”. Honest and accurate.
Great job Jeff 👍🏻
Thank you so much for the updates and calling out the idiots that pollute the thinking of weak minded individuals that simply want information but not smart enough to separate fact from fiction.
Thank you for that link. I have been looking one. I appreciate watching your videos on this and others. 👍🏻
Thanks for the coverage Jeff. I will check out that 24 HR video feed.
We have seen sections of the roadbed being pulled from the bottom, and generally in the area from where this section of truss was located. There is one crane barge dropping a massive weight to the bottom, and another with a grapple lifting up the debris. Please pardon my ignorance of the names used for the equipment to do that work. Consider too, lifting the concrete roadbed in a similar fashion to what we just observed with that section of truss might be very difficult. The roadbed will be cracked and broken, so unstable, in comparison to sections of steel truss. So scooping it out, dredging it, is likely the best option. Another YT'er, Minorcan Mullet has set up a camera on the opposite side of the wreckage from STL's camera. It provided excellent viewing of attaching to and removing the truss section on 4-14.
Thanks for all the update info and vids. I was wondering if you have any images of the utility vehicles being pulled out? I saw a video on line where they pulled one out. Just wondering. Thanks again!
Thanks for the good pictures of the work progress. That's what I'm interested in.
Thanks for your down to earth take on this stuff Jeff, I am in New Zealand, and being a boat builder from the 60,s I always loved reading my 'hard to get' US boating magazines, and one of my favorite articles at the time was the Chesapeake Bay one. Also, the song 'sitting on the dock of the bay' was one I loved that really related to my dreams of this Bay and anything US, after all I had a 90hp Merc, and loved it, so much torque. I was still surprised how far up the bay Baltimore is, quite a long way to get back out to the open sea it seems.
My dad lives on the bay, it's an amazing place. Baltimore works well as a port due to the proximity to rail, and the main North South highway on the East coast, Interstate 95, is minutes away. I think this is why it's the number 1 port in the country for import/export of cars and trucks.
Its not lifting a 1000 tons, More like 400 ish, how i know? At 1000 the crane barge would lay level and the hook would only be 20 meters from the bow.
Yep. It can pick 1,000ton, 43'-0" fender to hook.
Absolutely marvelous work! Great intell!
That something that massive went down like a house of cards is shocking 🇨🇦thank you. I learn a lot from you
Thanks for your doing this.
Makes perfect sense that they would transfer the load to its destination right on the crane barge since the capacity of the crane is with the boom almost vertical. Laying the boom down while transferring it to another vessel might severely tax that limit so they would need to spend lots more time cutting it into smaller sections. It would be interesting to follow the crane to its off--loading site to see exactly how it is off-loaded without extending the crane boom excessively.
Thank you, keep working.
Great job on this video, thank you
Another great video jeff
Fantastic video. ❤️I'm watching all your shows from Minnesota. 🇺🇸You are spot on about stars since I'm an Astrophotographer. ✨🌌
Well done Jeff
Chief Makoi here on youtube (an actual chief engineer on a cargo ship) did a great job addressing a lot of the conspiracy theories.
So good to hear your True commitment to this disaster,
No conspiracy theories here just good honest reporting
Thank you
You tell ‘em, Jeff 😅 it’s wild to focus on ideas & hypotheticals when presented with facts.
But - I love your engineering videos, thanks for doing what you do!
Hats off to the workers. I wouldn’t be surprised if the main channel is open sooner than projected.
I'd be interested to see the progress on the Dali's forecastle.
Wait until they find out how much weight a train pulls
This whole episode just proves to me again that common sense and logic have become superpowers. Thank you for the down to earth expansions about what's happening. For the conspiracy theorists out there, try using some of the above-mentioned superpowers.
Amazing to watch this. I watched "Herman the German" lift a tug boat in Long Beach (CA) years ago when my ship, USS Fox (CG 33) was in the yards, and thought that was impressive.
Conspiracy conjecturers (don't dignify their asinine musings by calling them theories) should have to turn in their humanity license.
Good job. Amazing work in Baltimore. I moved from Baltimore the year the bridge opened.
Good job, well done....!
Thanks, Jeff O~
Thanks!
It was the ghost of Elvis hovering over the ship that caused a distraction before it crashed.
😂
Oh, brother.
It was obviously bill gates with 5g and big pharma
Talking about the "maturity" of these conspiracy spreaders. Good points, well said!
As a side note: I'm a structures engineer and am fascinated by your in depth coverage. Thank you.
Those barge cranes are VERY impressive!!
Note that "Chessy" is not on a roballo mount and can't swivel, unlike the Weeks 533. We used Chessey on New York Hospital and Hospital for Special Surgery, hoisting platforms over the FDR roadway. The work was done by Canron.
There also exists far larger floating cranes, Sleipner 2x10000 tons, these are typically used in offshore and bridge building.
GOOD JOB!
bravo merci
A 1000-ton crane vessel is very large but not near the biggest by a long shot. I know there are several reaching a 5000-10000-ton capacity and at least a couple having done roughly 15,000-tons lifts, higher than what they are actually rated for.
Thank u
I got abducted by aliens and I'm sure you were on Channel 5 when we got to Jupiter. Great episode once again, Jeff.
Just announced: FBI opened criminal investigation. No other details released yet. Could it be to criminal negligence of ship maintenance?
I have a question how long will it take to to lift the steel under the water?
Good video. I love your sarcasm when dealing with idiots.
Hello 👋 friend thank you for the update information and your time nice work don’t worry about the people 🤔👍👍👍
Thank you 👍
Great stuff as always. Lets leave the fools outside the door. We don't need their FOOLISH comments, respect for those lost!
Great job
This is the job of a , Nay Sayer. Keep up the good work . Thanks for the channel .
What is the Crane near the Dali with the Platform doing? Still unloading Containers? Do they have to unload all the Containers from the Ship on Site?
Their goal is to remove 175 containers off the Dali
amazing the strength of link chain
It's called spaghetti on the wall theory, they are trying to see which one stick, and then they will run with it.
Thank you for all these info
It is also called another word that starts with an "s". As in who flung poo?
@@gravelydon7072 🤣😂😂😅😅😂😂🤣🤣🤣
Good you cleared up the power of the Chesapeake 1000 crane. I love your video's as it save me from sifting real from face information, thanks Jeff!
Which wondered me as a Dutch boy that there was not a more powerful crane near by. From my youth I remember the Taklift cranes in and around Rotterdam, today part of Hebo. Many cranes can lift up to 2000 tons and there are special build vessels like the Heereman Sleipnir, I'm not putting the capacity here as the non-believers will call it for conspiracy propaganda, but those interested in what marine tech can do, just have a look. It would be able to lift the entire Key Bridge (or at least close to it) if it was not damaged.
Hello from Australia, Henk. In one of the videos I have watched on the Francis Scott Key bridge collapse, the channel owner said that cranes larger than the Chesapeake 1000 may not be able to navigate safely in the available space around the work site. (Hope that's not a furphy.) Elsewhere, I have seen that the Chesapeake 1000 was one of the largest cranes available on the east coast of the U.S. Others have pointed out that it would take months to move larger cranes from their current location.
@@lizj5740 thanks for sharing this info.
That's why I mentioned the situation at Rotterdam harbor/Europort as I am aware I am a bit spoiled because of it.
Not many people would have stood at the edge of their village and looking at the ships sailing in and out of Rotterdam, as if they 'run' on the top of dikes that are taller than you are.
Our national history speckled with stories of tugs being months at sea to deliver a dredging barge somewhere on the globe (Hollands Glorie, novel by Jan de Hartog) and in my family still a thing, as one of my nephews commands such a large dredging facility.
Large is slow, and not always easy. Sure larger equipment would be used if available and useful at the site.
The Sleipnir only being an example we humans are capable to build. The crews clearing the Baltimore site showing a different human skills like action and dedication. (Sometimes it is better not wait (too long) for politics to take a stand and let the professionals do their jobs.
According to Maryland governor Wes Moore, the Chesapeake 1000 is the largest crane on the eastern US seaboard. It was brought from NY/NJ harbor. I guess there might be larger cranes in the Gulf of Mexico because of the drilling there. Rotterdam is bigger than any US harbor, let alone Baltimore which is relatively small even in the US.
@@skayt35 Rotterdam may be larger than most US harbors, but it is not the only harbor in the Netherlands that is home to some very large maritime cranes... Note the entire country of the Netherlands is just a bit larger than Maryland, not as large as West Virginia.
It probably has something to do with wooden shoes stuck in low land clay soil.
It's 1000tons with even more built in for safety!
Anyone know approx. size of the steel members? Or steel beam web or flange thickness.
the ship was offline but what about the refer units that tripped the breakers supposedly? aren't there rfid things on them possibly? just wondering
Yes ntsb is focusing on that with Hyundai the maker of the circuit breakers
Lol - took me all of 5 seconds to google floating cranes, and it tells me there are floating cranes out there that can lift 10,000 tons...
What's the difference between the lifting weight of the crane and weight the barg can hold with crane?
Thanks for your work, and I agree with your comments on the completists!
Jeff maybe 2,000,000 lbs. would be easier for them to understand or 32,000, 000 ounces might be better for them.😂
:)