Channel Clearing, Unload MV Dali Ship | Baltimore Bridge Collapse
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- เผยแพร่เมื่อ 7 เม.ย. 2024
- This action-packed update shows all the fast work that has been done on the Baltimore Bridge Collapse to free the stuck Dali container ship with the collapsed Francis Scott Key bridge on top of it. Cranes were brought in on barges to cut up and remove bridge truss sections, and also to remove containers from the MV Dali ship.
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You'll also see the plans for opening a limited-access one-way channel in the middle of the main federal channel, and the roadmap to get this Dali ship refloated and out of the channel by the end of May 2024. You'll also see exclusive photos of the bridge and closeup that were taken underneath the bridge years ago. - แนวปฏิบัติและการใช้ชีวิต
🎥 Watch Next:
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Ha Jeff, that emergency boat, Marine Emergency Team 21 is part of a volunteer fire department in the area. Their web page says they have 35 highly specialized, trained members.
.
If they have been out there almost every day, they have a seriously dedicated group of volunteers.
I havent worked out where the orchestra is supplying the back ground sound effects?
I couldnt see it???
Who is Francis Ford Key?
@@rt3box6tx74 It is Francis Scott Key. He was a lawyer and poet in the Baltimore area. He wrote the poem that later became the Star Spangle Banner during the War of 1812 between the US and Britan. He was held by the British on the night of September 13, 1814, as the British bombarded Fort McHenry at the entrance to Baltimore Harbor. When Key woke up and the smoke cleared from the ~24 hour bombardment of the for fort, a large U.S. Flag was still waving about the fort. This sight is what he claimed inspired the poem.
It's a heist for "damaged" goods🤭
I was a commercial diver, the ladder would go to the bottom or they would use a crane to lift and lower the diver. The air is surface supplied, the bottle on his back is the bailout bottle, used if he had to drop the umbilical. There are also power for the lights, audio and video feed and likely hot water pipes. Diving can be chilly!
Thanks. People make a living working hard and doing great and dangerous things.
The bottom of the ladder is only about 10’ below surface
How long does the bottle last?
@@jeffostroff since it is a - river only - and not hours of decompression is needed, enough time to come to the surface.
Those cords coming off the helmet were concerning to me, although I’m unexperienced. What are the chances a piece of debris could get caught on the helmet cords and cause trouble for the diver?
According to a statement by an official last week, the front two compartments of Dali are flooded and the vessel is grounded under the weight of the bridge.
Great update Jeff. Thanks!
I was wondering if it was bottomed out. Thanks for the info.
It looked to me as if just before it hit the pylon, the bow and superstructure listed vigorously to port, which I suspect is the hull riding up on rip-rap piled to protect the pylon from erosion, so it ran up on it during the crash, thus its not just grounded on the bottom, but on a raised area.
@@natehill8069 The raised area IS the bottom, not something else.
Thank you Jeff for taking the time and making the effort to provide not only closeup views, but for providing information from different sources. It's like one stop shopping!
You are so welcome, thanks for watching
The wood pieces are "crane mats" that the crawler cranes on the barges sit on, and maybe move back and forth on. Spreads out the weight of the crawler tracks. Might also be used to stack debris on, again to spread the load out over a larger area.
Wood is better for a crane to be on instead of metal tracks on steel which is potentially very slippery(steel on steel).
Francis SCOTT Key bridge not Francis ford bridge. Thanks for your expert analysis of this operation. I have always enjoyed all your videos especially on The Surfside Condo Collapse 💔💔💔💔💔
NOT named after Francis FORD Coppola , movie producer / Francis SCOTT Key , author of the "Star Spangled Banner" during the War of 1812 at Fort McHenry in Baltimore... which can be seen from this bridge.
Yeah, what was he thinking? Good grief.
Actually he mistakenly said Francis FORT Key bridge, but mind you you’re perfect…yeah right
@@jjtiger7707 Francis Scott Key Bridge*
He knows 🙄
It's nice to see an actual, understandable explanation of the wreck and some of the actual work being done instead of politicians, uninformed and redundant news people and officials busy trying to assure us they are doing all they can. Thanks.
Well said! Couldn't agree with you any more! People with technical skills and knowledge don't want to listen to officials or idiot reporters or worse stupid members of the general public! 😮
Mark from Melbourne Australia 🇦🇺
@johnkelly8919 You cannot do engineering without economics. The problem of who pays is more important than a couple of spectacular pictures but nobody dares bring up the subject of why the government is considering to disburse the cost of repair.
20 years driving that bridge. The picture makes me so sad. I miss her. 😢I know every bolt and every beam. That bridge went through a lot of weather. I almost go the old way in the morning.
You know every bolt and beam? BS
Jeff, at 3 58, you say you don't know ow where all the wood came from. I believe that stack of wood arrived on the barge. The wood is used to brace & level out the uneven load. I think they are called 'shocks'.
The excavator stands and drives on the wooden beams so that it does not cause any damage and does not slip on the metal floor with the crawler tracks... metal on metal = not good
@@GrafVonHolz Where did the wood come from that was washing up on the shore in residential areas?
@@nopriors not from the any part of the bridge itself since i know that's what you're trying to imply.
@@nopriors It could be a few things. Apparently the bridge originally was a wood and steel bridge so it may have some wood members somewhere on it. There was also wooden fences surrounding the columns that likely got knocked. It could even be debris stirred up or unrelated completely.Theres wood in the bay for as long as I remember floating around but my assumption is there were wood members stowed somewhere or in use in non structurally essential areas. Unsure until the NTSB report.
@@Phoenix-jw1mn Thank you Sir
Amazing the amount of rebar! The shearing force was insane!
Yes agree ...the photos of Larry's vacation photos of bridge view ive never seen the bottom of a bridge.. really nice to ssee
Wow! 😮 Your graphics of the old channel, as well as the new temporary (35' deep) channel are a huge help in visualizing the exact situation! 👍
*Thanks so much!* 🙏
(Now I'll go back to watching the rest of the video.) 🙂
And the pics are much appreciated, as well.
Great pics! 👍
@@johnfromnewjerseyusa1369 Thanks, glad you liked it
Thanks Jeff, you do a great job walking us through all of this.
C'est la première fois depuis la catastrophe, que l'on présente le plan de travail et le détail des éléments. Les segments enlevés. Très très intéressant. Merci
😊
There is much better and more mature and informed posts. This is for school kids.
@@kenbulut-oe8sbThere are other videos with different points of view from different experiences by the creators. But the information and analysis of Jeff's videos are usually well informed based on his research. So unless you have your own channel with better information, it would be wise for you to respect the effort and time that is spent creating the video.
@lallementbernardecrivain7387 Il me semble encore plus intéressant d’établir la responsabilité de l'accident et de savoir qui devra payer les dégâts. Il y a plein de choses que l'on ne sait pas encore comme par exemple pourquoi les compagnies d'assurance ne peuvent pas faire leur propre recherche sur les terrain et dans les archives du port.
Thank you for this excellent footage and details of the work that will be need to be undertaken.
❤great videography , excellent commentary . Thank you very much for this.
1:30 The channel depth was reported as 50 foot so bottom time can be measured in hours. The diver is likely in a dry suit for cold water operations which has the abilities to be fitted with hoses to circulate heated water. Plus air, power for his lights and communications. The tank is a backup air supply if his umbilical is compromised.
They can’t see past 2 feet. They are giving audio commands and directions to divers from above water using technology to see down below. It’s wild stuff
@@BigWormBudz have you ever dove there in the bay
@@hawk1481 no but this is common knowledge here in the area. It’s always been murky and dark water. It’s 4-5 feet of mud on the bottom before you hit sediment and steel from the bridge and concrete are embedded in the mud and past that
Very good pics and video today. This whole thing, the bridge and the ship always reminds me of a kids toy set. Of course it's far more serious than that and as you said it's tons and tons of metal and reinforced concrete.
I'm in awe of those divers, what a job!
Fascinating!! Thanks for this!!
anchor drag chains can be used to cut the steel underwater into smaller pieces so it can be removed. sunken ships are cut up underwater all the time for salvage.
Almost no visibility will be a problem.
@@lindap.p.1337 chains do not require visibility, divers work in worse conditions
Thanks,, Jeff. Looking forward to the next video.
Hey great job - this is by far the best coverage I've seen on this incident - grateful for the contributions of your members, as well - subbed
Very good content and pictures. Scary how little connection there is between the bridge and the concrete supports.
There's little connection between the bridge piers and the trusses because an allowance has to be made for thermal expansion and contraction of the truss to keep the truss span from destroying itself as the span heats up and cools down due to weather. One end of the truss is connected to the pier via a hinge, and the other end consists of a set of rollers between two heavy horizontal plates, the lower one connected to the pier and the upper one connected to the truss (a roller bearing). In hot weather the truss gets a few inches longer and the upper plate moves to prevent stress on the pier underneath or on the truss. The hinged end of the truss doesn't slide so both ends remain properly over the piers. In cold weather the truss gets a bit shorter so the upper plate rolls closer to the other pier. The whole arrangement depends on the piers' remaining intact and able to handle the relatively small force needed to move the roller bearing. No bridge can withstand having one or more of its piers destroyed.
Francis Scott Key, the composer of The Star Spangled Banner, the national anthem; not to be confused with Francis Ford Coppola, Italian movie director and producer. Sadly, probably the more famous of the two.
After having the opportunity to work with some divers that wear the type of equipment pictured I can say that that helmet weighs at least 50 pounds. I helped the diver suit up and a helmet a little smaller than that weighted in at 45 pounds.
Jeff, overall, a most credible explanation of the work being performed. It's nice to see that ignorance is endemic in America with some of the comments, but as a professional engineer I like to point out that no rivets were used on this bridge. All connections to gusset plates with beams and girders and bracing were made with high strength steel bolts and nuts.
TFS. They sure did hold up. Impressive.
....:) Your Opinions and Insights seem so Good and On-Point.....I hope the Army Corps People are Watching Your Videos, too....!!!.....:)....🤩
on commence ENFIN à nous expliquer !
I appreciate the update. I will be follwing this for a long long time......as long as it takes.........
The wood likely came along with the barges and other ships. It is usually placed between the metal pieces and the deck of the barge/vessel to protect the steel deck from damage.
"Dunnage."
Good job noticing the quality of the gussets. I didn't catch that detail till you mentioned it.
Jeff, pretty sure the Army Corps of Engineers plus USCG will completely clear/ sweep the temporary channel. Not an easy task
PS - Thank you Larry for the photographs of the bridge!
Also, that circle on the side of the ship at 12:28 in your video is the symbol denoting the location of a ships front side thruster. This marking is always well above the water line and lets tugs and other ships know where they are located. Noting that, I surmise that, indeed, as you noted in your commentary, the ships lower hull remained undamaged.
Thank you for your indept coverage of this travesty. Explaining it to this 5yr old 😊
Gripe, gripe, gripe.
@@Macarena22279 😂😂 you think
According to another TH-camr channel about ships the smoke that was pouring out wasn't from the main engine but rather was coming from two of the main generators starting up. The emergency generator is much smaller than the 4 other main generators and it starts up 45 seconds after the power goes out. But this one didn't kick in for just over one minute. He said there's no way they had the main engine started up in such a short time. The smoke is a big clue that perhaps they had the wrong fuel for the generators - which could be why they said they were going to be looking at the sulfur levels of the fuel? They're pretty huge diesel engines. Either way it wouldn't have mattered - it lost power in the worst possible location.
Do you happen to know if there were bow thrusters ??
@@peterdarr383 Yes, the ship has bow thrusters.
Wow! Great vid! I bet anything that ship is so stuck in the mud.
It’s absolutely incredible how big this operation actually is. The size and weight is incredible. This gives a good perspective on the scale of this.
Great explanation….thank you ! 😊
Thank you for your excellent coverage of this Bridge Collapse!
Thanks Jeff 😊
Thank you, Jeff. I appreciate the acknolgement and mention. Outstanding photos and information. Great work.
Amazing how the vehicles stayed in place despite the great angle as they fell through the air. I assume that is because they and the bridge are both in free-fall so keep their relative positions. However, I expect that once in the water, backwash from the splash would toss those vehicles around and they could move sideways considerable distances as well as forward and back, so the divers will not necessarily find the vehicles where they would be expected to be on the road surface.
Thanks for the info. . . Will continue to watch your updates on clearing the channel. Austin, Tx. 🇺🇲
My husband worked for local 16 Baltimore ironworker on this bridge. Koodooles to all of the ironworkers amungst many other workers in this bridge. The iron workers are the rebar guys. That is alot if rebar as stated and it is huge and very very heavy. That is back breaking work. Amazing to see all this in pcs as I also watched it being built in 1977 the finished opening. Some memories here. Condolences again to these families. That was a great shot you got if exactally where the trucks were sitting. The gave and sacrificed their all to save many others. There is a very very special place in heaven fur these workers. They are now angels. God bless to the family and friends of all that gave their lives on that terrible day. We will bring your loved ones hone to you. Baltimore Maryland will not rest until those workers are back on surface with their loved ones. My prayers to the family of the piolets that day as well. What they must be going thru. Greif is very difficult sling with guilt. What a terrible accident. Tfs. Your photos are amazing.
Thank you for sharing the hard work and good deeds that the Baltimore Ironworkers Local 16 has done. My boyfriend of many years was a Local 16 brother. He was born and raised in Dundalk, of course. He died in April 2020. I have since moved to PA. I saw the actual collapse on the news. It was so hard for me to comprehend that the Key Bridge wasn't there! Besides my boyfriend having worked on it for years, we LOVED that bridge. I rode over it 100s of times. Every time (no matter the weather) I would roll down the window and stick my hand out and "ride" the breeze. It was so exhilarating to be up that high, and take in that breathtaking view of the entire Port. I have even been under it in a tour boat a few times. It was so, so massive! Now this! When I saw the footage on TV, I watched one specific spot on the bridge in horror. That is the span where all the MDTA guys always parked their trucks. I saw the trucks go down and screamed because I thought it was some of the guys I had known falling to their deaths. I was in a panic. I told my family that if my boyfriend hadn't died four years ago, he would have died that night. I was grieving for hours until I heard that none of the Local 16 guys were working that night. I was so relieved, but I'm not saying that the Hispanic workers' lives were any less meaningful. I cannot imagine what their last moments were like. So sad. My heart goes out to their families--RIP. Also, the Key Bridge was such a beautiful landmark. We could see the Key Bridge from the attic windows of his house in Dundalk. Now there's just a dark abyss. Sorry. Didn't mean to get so long-winded.
The rebar is in the concrete. The concreters do the rebar, not ironworkers.
@@TA-wg9oi Depends on where you live.
@@TA-wg9oi
Actually, when the Key Bridge was built, I am 100% sure that the Ironworkers were the ones who practically stood on their heads day in and day out and day out laying re-bar. Re-bar is made of steel. The Key Bridge required a wide range of heavy-duty re-bar diameters. The Ironworkers arrange the heavy steel re-bar into a grid pattern. Very tedious and exacting work. Each grid has four, 90 degree-angles, all of which have to be tightly secured with metal twisters. This equates to thousands and thousands of 90-degree corners. Backbreaking? You bet it is. The Ironworkers become very fast and amazingly adept with this hard task. They also install "chairs" at varying heights to keep the re-bar from falling downward. Before the concrete is laid, this entire process is subject to periodic inspections. If you want to read how complex this job is, I refer you to "Standards for Bridge Design--BD-M600 Series. Concrete workers are definitely not trained in this area. Ironworkers also weld beams, drill rivets, and much more. They conduct these intricate tasks at very high altitudes every day. They are highly skilled, unlike concrete workers. The Ironworkers probably only wish that the concrete workers did this job. Gotta Ask: Don't you think that Mrs. Johnson and her husband know that he laid re-bar as a major part of being a member of the Baltimore Ironworkers Local 16? Hope you look up the Standards for Bridge Design. We can all have respect for the blue-collar workers. Their certifications and on-going re-certs are not easy to pass. Very, very technical. Kudos to all Ironworkers.
To comment on the flooding part. Even if the ship was flooding it would be contained to the bow of the ship. If the ship had a 48 ft draft and channel is 50 ft. Then at most you are looking at 12-20ft of the bow sinking and sinking into the mud bottom leaving the the rest of the ship afloat and there being no immediate danger of anything else thus no reason to abandon the ship. Ships like these are designed to stay floating with certain amount of compartments flooded and the ability to seal off the compartments to prevent the flooding from spreading everywhere else.
1:30 CRAZY diver setup! 10:38 bow hole, roadway concrete and rebar
That divers making around 200 an hour with overtime. It’s a pretty good hustle.
Takes a major toll on the divers body and extremely dangerous work.
That's the way it is when you dedicate your life to a professional career that very few want or have the intestinal fortitude required. No video games here.
Thank you very much for the shots,videos, and comments. Best coverage. Much appreciated!!😊😊
Nice detail and images!
Thank you Jeff for these updates!
Great synopsis of what is happening in Baltimore and the salvage & clean up process Jeff.
Excellent. Thanks for that. Born and bred Baltimorean living in Florida I’m hungry for news and follow all I can. Appreciate your time and effort
It's the Francis SCOTT Key bridge. You were thinking of Francis FORD Coppola.
What I'm curious about is that there was sufficient time to shut off the traffic with the last vehicles making it across but not enough time to notify the construction guys to get the hell off the bridge.
It's a long way to shout, they probably didn't each have a radio, cop would have had to drive into the danger zone and would have perished with them.
It happened so unexpectedly, and relatively quickly, that it's fortunate that even the traffic got closed in time..heavy regular Marine traffic passed routinely under the bridge, no reason to be in constant emergency mode, horrible things happen in this world.
The bridge is/was 1.6 miles long. At 60 mph, a cop car could make it all the way across in less than 3 minutes, even allowing for slowing to warn the crews. The mayday from the ship allowed over 5 minutes. And don’t tell me that no one was watching that ship when started having trouble. Ships in transit ALWAYS draw every eye.
@@glenparker234 thanks.. when's your next comment so I don't miss it, Superman.
@@glenparker234 Someone had to stay there and block traffic. How many cops with cars were right there right at that moment? Cops are driven by procedure--did they have a procedure for that?
As always, great analyses. I am extremely anal about data, and you always hit a home run in my opinion. Keep us the work, knowing it takes an enormous amount of time. Thanks again for you being you.
Great analysis, great job, better than anything I've seen on the news channels, Thank You. Keep up the good work.
Love that pic of the GGB. I love old photos and its a beautiful picture. Its always smoggy and foggy in san fran. Way to get that perfect shot on a beautiful day
Amigo muchisimas gracias por tu comentario escelente buenas imajenes . Muiben te felicito😮
The wood is for the excavators so that they don't slip on the metal floor...
Thanks so much Jeff for your comments and this update. As sad as this has been, it is also fascinating to see the the amazing way this monumental job is being done.
Thank you for creating this fascinating video. I loved every second of it I have sailed over 10,000 nautical miles in a 35’ ketch. So love sailing vessels and ships of every kind. Passed many container ships in the South Pacific. Some of the same ships in multiple ports. I really appreciate the details and photographs in your video.
I just subscribed to your site. I’m forwarding this to my family members.
You rock!
Thank you Jeff for the information update 💯👍👍👍
No problem 👍
The Dali must be beached, judging from these sonar pictures.
GREAT photos you’ve obtained!!
Your insight is very important!!
We thank you for the great commentation and visuals you are providing it is so helpful
Thanks!
Thanks for the $superthanks! Jeff
I don’t know who will pay but I’m certain that a lot of lawyers will make a fortune.
my prayers are with everyone over there!
great video mate, thankyou
The wood or wooden mats may be for the excavator or cranes to maneuver on while on the barges. They add friction to the tracks so they don't slip and slide while on the barges.
Thank you, keep working.
Thank you, I will
Thanks for being so many details into focus. Your explanations and picture help make sense out of all that twisted steel. Well done indeed!
The location of the new limited-depth/access channel makes sense given a combination of prioritizing regaining access and locating missing victims. It makes sense to clear the easiest to clear debris first, especially if it is in an area where potential victims might be located.
Thank you for continuing to focus on this recovery effort and gathering all the media reports into one easy access place.
Thank you, Jeff, for the detailed information. Giant cleanup.
There is one thing I would like to remind everyone about: Saturday, May 18, 2024 scheduled is The Preakness (horse race). Pimlico Race Course in Baltimore. LOTS of traffic!!!
Key bridge was in southeast Baltimore, Pimlico is in northwest Baltimore. The loss of the bridge is not likely to directly affect traffic near Pimlico, although it may affect traffic using the beltway as part of getting to Pimlico.
3:26 They say the weight of the bridge equals 3800 (fully loaded) dump trucks. Not that it would take 3800 trucks to carry it away. There would be more needed because the loading capacity of a dump truck is way less than 13t as assumed.
Most triaxle Class 8s can gross 80k and they usually scale around 30k empty, so that's 50k payload or 25 tons.
@@dchawk81 I was adhering to the example given. Of course there are different kinds of trucks.
Excellent reporting as well as explanations of this situation! Thanks.
Glad you enjoyed it!
Just found you channel today. Sure beats watching the short snippets the news channels dish out. Keep it coming!!!
It could be the divers are using special sonar viewers.
Could maritime flotation bags be used to lift sections of the bridge.
Do you think they going to fine the owner of the ship? Someone gotta pay right?
Thanks again for the great close-ups, Jeff!
Subscribed !! Clarity you provided is awesome. Thanks
Great video.
Great to have as much information available as possible to get a real 'feel' for what happened. Again it can't be understated how fortunate it was that the time of day and the 'Advanced Warning' the crew on the Dali gave to halt any traffic flow over the bridge. It is just extremely unfortunate that those men that perished is really the only thing that can't be replaced. I surely Hope that those families are taken care of emotionally and financially.
Amazing Video ... thank you
for this coverage ... 👍
Your explanations and visuals are very helpful to understand what is going on. I appreciate the effort you put into your video. Thank you.
Terrific detail and good description for those of us not familiar with this area. Thanx.
Jeff,
First, it's a miracle that the crew members, at least a mate, and seaman, that had released the port anchor were able to get off the fo'c'sle deck and away without being crushed. The thought of scrambling around equipment and finding a clear path in a matter of seconds is chilling.
If you look at the closeup of the bow where it was torn open. The blue paint is the "boot top", the outer layer of paint. This is most likely a polyurethane paint. The gray paint is probably an epoxy paint. Now move your focus to where the hull has torn away. The edge looks similar to a piece of paper that is torn. I have seen steel that looks similar on two occasions. One was a tanker that had an explosion. The other was a 120,000 DWT tanker that had an allision.
There were early reports that some spaces were flooded. A likely space is the forepeak often a void or a ballast tank. The other likely space is the bow thruster room. This space is where the bow thruster and it's hydraulics are located.
Bob
Another great analysis of this disaster. Enjoy your videos
Cool video!
One of the best and thorough videos I've seen 👍👍
Great photos! Thank you.
One hell of a dangerous job !
Good job of explaining what is going on sir !
Hi love your reports. Very informative. It's the US Army Corp of Engineers. Not core of Engineers. Essayons is their Motto..
Nice analysis and presentation . From the photos , we see that the WT collision compartment and bulb bow parts did a fantastic job. BOTH structures ( ship , bridge ) seem very strong, with Remarkable integrity. That's way the impact was heavy. If one of them were --weaker-- , the domino effect should be small. From the photos you provided, shows that the ship speed was not minimized (**) before approaching this narrow bridge span. (You CANNOT pass a needle ......i.e.---> a 14.5m ship draft, into a 15m bridge depth
Thank you for your great
coverage. I am so tired of seeing that one yellow container being lifted and nothing more on their
videos.
You give the best information and explanations. Thank you.
Very enjoyable, informative and concise video. Thank you.
More like a can of tiny shrimp, or cat food.
Jeff used to rent "that" cherry picker, the orange and yellow JLG . They only built one.
Great video. Thank you for your time
Video Idea. From an Engineers point of view, how is rebuilding the Baltimore bridge different from rebuilding the 35W bridge that collapsed in Minneapolis. That bridge was replaced in 13 months. Obviously it's longer, but what has to go into the rebuild that wasn't needed in Mpls.
The 2 main support piers because of damage. The piers under the ends of the simple spans that held the ends of the truss will probably need some repair depending on the damage, if any. I have an idea the continuous truss will be replaced by a cable-stayed bridge with the appropriate piers and foundations. All of the approach spans on both sides were not damaged by the collision and aftermath so they should not need to be replaced saving a lot of money and time.