Shocking NAVY Sonar Images Baltimore Bridge Collapse
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- Опубліковано 1 кві 2024
- This update of the salvage operation of the Francis Scott Key Bridge collapse in Baltimore, MD shows sonar images released by the US Navy which show the scary conditions where the Key Bridge collapsed after being struck by the the MV Dali cargo container ship.
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This imagery was supplied by the U.S. Navy’s Naval Sea Systems Command (NAVSEA) Supervisor of Salvage and Diving (SUPSALV). It shows the wreckage resting at the bottom of the Patapsco River where the Francis Scott Key Bridge once stood. This shows the magnitude of the very difficult and challenging salvage operation ahead. The underwater sonar imaging tool, CODA Octopus, is the primary survey tool used by divers, with visibility clouded to just one to two feet because of the four to five feet of mud and loose bottom of the Patapsco River.
Divers are forced to work in virtual darkness around the collapse of the Key bridge because when lit, their view is similar to driving through a heavy snowfall at night with high-beam headlights on. So murky is the water, divers must be guided via detailed verbal directions from operators in vessels topside who are viewing real-time CODA imagery. No usable underwater video exists of the wreckage, because as one Navy diver stated, “there’s no need to take video of something you can’t even see.” - Навчання та стиль
The best thing about this video is that he showed actual images and made no judgement about who was at fault and didn’t try Ty tell us how it could have been prevented, unlike most of the other commentators. Thank you!
Thank you Mr. Ostroff
it was the boat's fault,,, stupid boat
I KNOW via common sense speculation completely geared up on preponderance of the evidence and complete lack of ANY honest, accurate, factual answer from any government or maritime expert. This was a tragic and catastrophic incident which was 100% preventable. This is what happens when you prioritize profits before mandatory safety regulations and protocol. My prayers go to the families who's loved one's lives were lost. More prayers go through all of the courageous workers for safety and good health these coming months and years.
@@user-co7fb6qe5w A lot of it has to do with normalization of deviance.Hey we've never had a problem before what could go wrong
Try taking a look at the maintenance records and past inspections of the container ship it never should have been allowed to be in service and never should have been certified the owner of this ship took shortcuts and not fixing the problems properly tell that to the people that owner of the dead that owner of the container ship killed
Thank you for actually showing the images. There are dozens of clips from news stations talking about these images and every single one just shows a few short seconds of footage intermingled with pointless press conference footage.
They keep showing the same video over and over again. Why not a new LIVE one showing the removal of the bridge pieces?
Former Baltimorean here, now serving as an emergency manager based out of Portland OR. The FBI bomb technician should not be of surprise. The main insignia on the agent's jacket is ERT (Emergency Response Team). This agent was on deck for service when the accident happened. Most of the agents that are in that same pool of ERT members have one or more specialty certifications - like diving, swift water rescue, urban search & rescue, bomb tech, etc. Bomb tech guy just happened to get the call from his boss to go out and be the ERT on site, not necessarily a bomb technician.
Exactly well said an explained.!! Fellow baltimorean here!! On scene...!!
I love it when the actual professionals chime in on incidents like this. Imagine going to work and suddenly having the whole world creating conspiracy theories about it. It's wild.
Picture your yard. Mine is 100'. This ship is ten times that long.
@@jeaniechampagne8831 What does that have to do with anything?
@@m0L3ify I most definitely am not promoting any kind of conspiracy theory. However there are facts. No one government agent or maritime expert release some factual, honest and accurate answers to some reasonable questions. After the Sunshine Skyway Bridge accident there were some new federal laws and mandatory safety regulations that need to be followed so no other accident will happen again as tragic as the Sunshine disaster. As aa American I am perplexed as to why no one in the government or maritime expert can't answer some simple reasonable questions? Was all federal protocol followed? What are the harbormaster pilot's responsibilities? Why haven't we heard from the operator of the Dali or at least his supervisor. No conspiracy theory but this is Unacceptable. I know protocol, I want someone to acknowledge it in factual language. My prayers are with the families who lost a loved one. Further prayers go out to those courageous workers in the coming g months and years for safety and good health.
I find it very difficult to get a sense of scale in all this. I mean, the Dali is huge and the bridge is massive. It's only when i see the coastguard vessels, etc, alongside the ruins that I start to realise the enormity of the task ahead.
Look at how small that cross section of bridge sitting on the bow looks compared to the ship. The still standing remains of the bridge look like a ribbon compared to the ship. That might help with the sense of scale.
friendly reminder that those shipping containers are about the length of a 40ft semi truck trailer... each
@@Hippoopi Yes, that's a good point. The 'ribbon of the road' which you talk about is actually a four lane (? presumably) highway. So the vessel itself is pretty massive. Well, very massive!
@@manitoba-op4jxI’ve been saying railroad car. Have seen these in person while transiting the Panama Canal.
@@Hippoopi What's kinda crazy is that for cargo ships, this is one of the smaller ones. They can get 4 times the size of that ship.
I work in the port, and it has been crazy to see all of this going on. Never thought I'd wake up one morning to see the Key Bridge gone.
The company I work for utilizes some of the same technologies that are being used in these video clips. Thanks for sharing them. Not many people get to see how technology is used in underwater construction and salvage.
Once it stops raining here I'm planning on getting out there myself to see some of the work being done in person.
I grew up in Baltimore and I live in Southern Pennsylvania now and I'm sitting here watching these videos of the bridge when it collapsed, post collapse and now and it's still so surreal that in my brain I still can't comprehend I'm looking at the bridge in the middle of the river.
I've lived in Baltimore since 84 about 1,7 miles from the bridge and I it's still hard to believe how easy and fast it went down
I live in Dundalk now, and I am having a REALLY hard time handling that it’s gone. I used to be able to see where the bridge began from my house, now I see the spot where the bridge ends. Every time I step outside, I know it’s gone and that fills me with anxiety and panic.
@@miss_anne_thropic_ I feel u lived here my whole life since 84 I know just how ur feeling
Something is wrong with state government in Maryland. Your governor acts like it's the end of the world. One bridge and one Port, so what. A broke state government
@@gregorylyon1004 It's a major bridge in the area, hazmat trucks would take it instead of the two tunnels (hazmats are prohibited in the tunnels). Also, non-hazmat traffic that would have used the bridge now have to take the tunnels causing more congestion. The port is a major economic center in Maryland. It is a huge issue to those that live in the area.
That was great, Jeff. I was spellbound. The sonar depths at various spots explains what they can use.
It is a great technology
Superb video Jeff, thanks for taking the time to post.
There are also power lines and a gas pipeline that run parallel to the bridge. I think the bow of the Dali is resting on the gas pipeline, and they were worried about what damage that might have caused.
Plus a train that president Biden said he was on went he went to the harbor.
Why would a pipeline be so close to the shipping lane? Then again I suppose it runs Parallel to the Bridge..
solid comment
If the bow is resting on the pipeline, the gas company (BG&E) needs to do some serious house cleaning. You never have an HDD profile at that shallow of a depth under an active ship channel.
@@mikeskidmore6754 because the pipe has to cross from one side of the bay to the other?
It's so impressive how good sonar imaging has gotten. Sure, it all looks like round blobs instead of flat surfaces, but it's still pretty mind boggling how well we can see with sound these days.
Excellent video, crystal clear. I love your narration. You respected the families still waiting for word on their loved ones.
Your video and commentary is very appreciated. I’m so impressed at all that specialized equipment. I lived in MD for 10 years. I traveled that bridge plenty of times when traffic was heavy at the tunnels. It’s still so shocking.
It has just been reported that "Harbor Freight" is providing all the tools
You win the Dad joke of the day!
Thank you, thank you very much….you’re too kind…..I’m here all week, please be kind to your waitstaff……😂😂😂
I am honored Sir!@@JustAKidder
ROTFL.....
SWEET disposable tools lol.
Thank you Jeff! I appreciate the work you put in for us!
My pleasure!
Thank you so much! I'm so glad I found your channel! It was totally by accident too thanks to a misspelling in the search bar! :) Amazing videos and very helpful to understand more of what we're seeing here.
He's a nice find. In other disasters he's been able to utilize his considerable engineering experience to investigate and explain issues leading to building and bridge collapses. This one features a giant ship crashing into it, so no mystery to unravel. lol
I just found this YT channel, totally by accident. Jeff seems to be very knowledgable in his interpretation of the news coming out about this incident. And I like his voice. 🙂
Thank you for the video. Showed way more than I've seen in recent news clips.
3:11 The squarish logo is Mediterranean Shipping Company. The weird shape is just a cut-out section designed to stop the bending forces in the hull from being transferred to the thin plating at the side of the deckhouse. Think of it as essentially something similar to how bridges deal with expansion, fixed at one end and free to move at the other.
Also SUPSALV is pronounced with the longer u, as in supervisor.
My thoughts are with the families of the workers lost- I don’t know if they’ve been recovered or not yet. Thanks Jeff for the update. The sonar images are so good
This video is super informative and educational. Thanks for posting.
Another fine video from @jeffostroff Your after the collapse and collision coverage is better than the mega-networks thank you for sharing your experienced keen insight and understanding.
I used to work for SUPSALV - it’s pronounced “soup” as it stands for Supervisor of Salvage. Just want you to sound cooler than the other UA-camrs. Nice video!
As always, excellent job and thank you.
No. In the scanned images, red equates to everything ABOVE the water. It has nothing to do with the color of the ship's paint. The yellow stuff equates to everything under water.
Your comment is confusing. How can you make a sonar image of something that's not underwater?
The "red stuff" is not sonar. It's lidar. And it is above water. Look in the lower right of the video.
@@WALTERBROADDUS he is not saying that the red is sonar, he is saying that teh red is above water, which is correct, the above water part was scanned using LIDAR, underwater was scanned using SONAR, then they lined the two up and merged them into one image as we see here, the original is a 3d scan, the image they released is a 2d picture of that scan.
Buddy the colour separation of the ship happens at water line what's the difference
Yeah, that's a coincidence and completely unrelated to the INTENT of the red/yellow color scheme. Happy to explain that difference to you, buddy.@@gameswithoutalex7073
The toxicity of that bottom has to be off the chart.
I lived on Bear Creek for a decade and Just recently, they declared it be a super clean up site.
Unfortunately, those divers are working in harms way.
Another great video! It's crazy how clear those pics are!
Thanks photo's
They're not photos. They're renderings based on sonar.
Thank you for posting this! I live 20 min from the bridge site. We don't get to see this up so close. We used to be able to see it from my neighbors house. Obviously not any longer.
I've lived about 1.7 miles from the key bridge since 84 and it's so hard to believe how fast and easy the bridge collapsed
You'll get to see the new bridge from your neighbors. LOL
@@gregorylyon1004 yup... not anytime soon the old bridge took from 72 to 77 to build I think new bridge will be a suspension bridge I hear which is faster to build but still gonna take like 3 years maybe 2 if they stay busy and constantly working on it
Thanks to all those fellas out there working on this site - it’s amazing the tools they have
Someone who has no idea what they're looking at explaining to people what they're looking at. Great work.
Super job with the updates, Jeff. Keep up the good work. We appreciate all the research and effort you have put into these videos.
Your voice is SO soothing, could listen to you all day! 😊
Thank you for the video.
Kudos to the extensive work done on this series!
Two forward compartments on the MV Dali are reported flooded. The ship is sitting on the bottom with 3000tons of steel pinning it to the bottom.
Bridge down in Sweden 🇸🇪 1980
Almöbron (The elm island bridge) hit by a ship (ice and current)
Replaced by Tjörnbron in less than 23 months
This is so informative! Great job, fantastic reporting!🌻🌼🐝 Keep it up 🙌
6:24 Sollers Point is pronounced locally as if Sollers is like Dollars instead of like "Solar". Nice video! Thanks for posting it.
Well Baltimore is known for its unique accent. Like hun and ball-more. I live in Anne Arundel county (Crofton) and the accent gets a little thicker as you go up 97 into Glen Burnie and then a good amount in Brooklyn and then bam Dundalk you’re in the thick of it. lol. Do you feel like the bridge being down is going to have a huge impact? I think it’ll have a really big impact until they get the port back open then I think they’ll be ok. Driving through the city or through the tunnel will suck. But I don’t believe it’s going to destroy the economy or anything too crazy. What do you think?
@forfun6273 Don't forget to pronounce Patapsco as "Patap succo". 😊
You should come out to Ohio and Indiana. Give you a few guesses as to how Russia, OH, is pronounced locally.
Thanks for the input.Everybody and don't forget baltimore as pronounced Ball More!
@@forfun6273 Paste "AARON EARNED AN IRON URN" into the UA-cam search. Much hilarity.
Great reporting! Thanks!
Red is above water / lidar, yellow is under water/ sonar?
New subscriber here. Thanks for showing the images and actually helping to identify what we are looking at. I think I saw somewhere that the front compartments of the Dali are flooded and also the extra weight of the bridge structure is pushing the bow down to the sea bed. It will be a long and difficult task for the crews to clean this up. Can't forget about the bridge workers and there families. Hoping they can get some closure soon and hope that this can be avoided in the future.
OK Jeff, I wondered when you were going to do a video and here it is, Thanks
I did 6 other videos on this collapse in the last week
Thanks for sharing this video
awesome video my man! thank you so much
Glad you liked it!
“I would hate to get pinched by that claw right there” caught me way off guard lmao
I live in Dundalk ,MD, and have been watching the news since this went down. With that said ,I do recall in one of the reports they said that they had found what appears as 4 vehicles under the rubble. Since that report came out a day or so ago I been trying to find more information about it
So cool! Technology is great!
Thanks for this beautiful video
the lumpiness from the underwater sonar view is due to the surfacing algorithm. sonar gives a point cloud which has to be rendered into a set of surfaces. It's tricky for complex shapes like a truss in mud.
This guy has absolutely amazing and informative videos. I’ve been watching him since he masterfully illustrated the Titan and brought in depth analysis of the entire thing. Piece by piece. Great work!!!
I appreciate that Kenneth!
Appreciate the update jeff. On Monday an official did state that the vessel was aground, and that the forward two compartments of the four are flooded.
Everyone go look up images on Salvador Dali's "Broken Bridge And The Dream"
The boat was named Dali, too 🧐
The workers doing the actual removal of over and under water debris, you are brave beyond words. There probably are few other jobs that are as difficult and dangerous, but they are making it look easy.
Great Video, Very Interesting Video and Stills, thanks for sharing
I never knew there were so many bridge experts in america, until this disaster occured....they're coming out of the woodwork!!!!
Divers will have to go down and cut the wreckage underwater. Extremely dangerous undertaking.
It looks like there is a flat bed truck to the left of the area you thought was the roadway. Thanks Jeff-love your videos!
@jeffostroff Love the videos, one suggestion though you should make your engineering disaster playlist chronological. Oldest first. Right now it is impossible to figure out where a given series starts or ends since the order is random and the video titles arent numbered.
Dali has the AFT out of water witch means the FWD is on the ground a little bit tilted on the left side because of the different depth
WTF AYTA?
Thank you
I like your channel. My dad was a engineer and I finding out engineering causes and possibly fixing the problem!
Awesome video as always. Thank you!
Could it be that the red color is above the water?
Also, in one image, it looks like the road deck is still hanging by the cables that supported the center of the bridge.
Where did they find all the large timbers with fittings? It looks like part of an old railroad trestle.
3:59 yes. Sal Mercogliano with What’s Going on in Shipping? has already reported that “they” have reported that the front of the ship is under water mostly and that the weight of the fallen Key Bridge is causing the front of the ship to rest on bottom, and that some of the forward compartments of Dali are also flooded. Can’t wait to see his analysis of these sonar images. He is less sensationalistic in his coverage.
You came over here to be a jerk?
Probably is like that everywhere sadly.@@KayInMaine
@@soccerdad2539 Probably. So sick of people like this.
A lot of people will make a video to say that they have the answers. This guy talking is doing a good job
2:30 LIDAR imagery is in red, SONAR is in yellow. All the red you see is above the water, all the yellow is below. LIDAR has much much more resolution compared to sonar and that's why the debris in the water looks all "blobby" compared to the crisp bridge beam details above the water.
I would think the blobbieness is sonar distortion cause by turbulent currents, obviously the current is much slower than the speed of sound in water, but side scan imaging sonar is a coherent imaging system, so the phase of the sound mage matters, and it’s much more sensitive than the range delay, esp,at high frequency.
Imaging tech is so cool. Those LIDAR (I'm sure false colored rendering) views were fascinating, considering what us locals know about the water in the harbor area. Can't believe my uncles used to throw each other into the water in areas like Canton and Fell's point, (all quite a bit upriver from here) but that was some icky stuff back then!!!
Very much appreciating your coverage of this disaster. But I don't think the new temporary channel is where you suggest at 4:50 because there is bridge wreckage there, I think it must be further to the east. I could be wrong though!
So SHOCKING! I'm Shocked for sure
I am surprise the US Navy released these sonar images. This is still one of those technologies the Navy guards very carefully.
This sonar technology has been used for years by underwater salvaging Companies.
This is all commercially available technology.
Like others have said, this isn't anything new. Anyone with a bit of cash can get the sonar to map the bottom like they show here. Heck, I've seen 3D mapped bottoms like this for decades now. Usually just in grayscale, but I'd think adding color would have been easy.
🤦♂️It’s nothing sensitive and is commercially available. This is completely different from the sonar used by submarines to hunt enemy ships.
Another example of why you are one of the best out there Jeff. Thank you for the great info and images you provide as well as being easy on the ears when you speak...😊
Good discussion on water depths. Just to add some more specificity, per Chart 12281, the water depth just to the northeast side of the channel is about 19 feet deep, not 11 feet as you stated. Farther northeast it does get as shallow as 11 feet, but it is not where you were pointing, but farther out of the picture. Just to the southwest of the channel, it's around 25 feet deep. Farther southwest (the "orange" area you pointed to) there's a minimum sounding of 12 feet. All these charted depths are MLLW (mean lowest low water) level. Basically, average lowest low tide averaged over several years.
I don't think the new channel is where Jeff was pointing, that area is under the wrecked bridge span so I think it must be further to the east
The key at 1:58 shows the yellow as being sonar and the red lidar, so the line between them is almost certainly the waterline, yes.
Yes I think it must be a composite image.
The "square" on the container is MSC/Mediterranean Shipping Co
I have wanted to learn the flow rate of the river itself. The speed of the flow plays an important role in both the underwater search/recovery as well as the initial accident sequence. The depth of the channels at different points in the river with respect to the bridge is very useful but only until these videos is it clear how unsettled the water flow can be and yet no specific flow rates are provided.
They got some ships moving very quickly; thanks to all the hard working crews.
I might not be in the military but that's one thing I do know that is top secret is the United States Navy sonar technology imagery and also acoustics. these are highly top secret state secrets. so the fact that they're able to produce an image like this just speaks to the fact that we have so much more capabilities than what is shown here on this video
Look a fishing tackle electronics small scale the technology the navy rejected!!
@@garyslomczynski6579 I’m sorry what now is your question or statement?
@Spearhead. Nope. This sonar technology has been used for years by underwater salvaging Companies.
We, Manson Construction, used it 10-years ago to salvage some 150ton steel pipes that had fallen off a barge in Puget Sound.
In 120-feet of water.
@@DennisMerwood-xk8wp I'm speaking to the narrator who said this image was brought by the US Navy. yes sound acoustics and sonar is very top secret in fact the only thing that I've been able to find that's available in terms of acoustics would be rp 133.. Like I said I'm not in the Navy but I do know sonar technology is very top secret for obvious reasons because China and Russia have submarines that could easily launch nukes five miles off our coasts
Nothing is really top secret here...
So sorry so heartbreaking 😢
1:46 looks like very much like a 4 door pickup truck bottom left. Pquite possibly another to the right of it and possibly more in the area described as fallen cargo.
I think you are looking at the wrong side of the bridge in the sonar image of it resting on the bottom. At 7.13, you can see a shot of the left side of the boat (port?) which shows a long white line/walkway? This is different to the side you showed above water.
With a full load those container ships are only 18 inches from the bottom of the channel. When you consider the fact that the Dali is outside of the channel as well as has 100k+ tons of bridge debris on the bow, it's not surprising that it is resting on the bottom.
If the ship is sitting on the bottom.
That can be a major problem on its own....
Read this one , the Doli is not paralle to the wreckage resting at the bottom in the water , so it do not show the ship tutching the ground
Where did you get these images? Can you download them?
I can't help but notice the nice clean breaks at either end where it meets the roadway. Not one bolt held,Tidy!
Those are the expansion joints, there's other videos taken on those ends of the bridge, and you can see how it broke right along the expansion joints, which makes sense. The whole point of an expansion joint is that separates the bridge cleanly into distinct sections to allow each section to expand and contract with heat changes. Every bridge in the world has these.
When you comment on "I hope that equipment is waterproof" when they drop in the ROV's, you see they're using a specialized version of a Panasonic Toughbook. It's what you use when you have to use a computer in any sort of extreme environment. Absolute units.
@jeffostroff. Where are the container ships that would normally be using this depot going please?
Plenty of information about this already out there. They are being rerouted to other ports, with the majority going to Virginia.
There are 2 flooded compartments according to SAL on the ship
When you showed the overhead sonar, I believe it is zoomed in too much to see the depth of the temporary channel. From the videos it looks like it's several spans away, from the impact point, however what you theorized was the temporary channel appeared to be one span off of the main. So I am curious to find out then if there was already another channel dug out where the temporary one is that may have been abandoned when ships got too big but now reopened to allow the bigger ships (but not the huge ones) to get through.
Basically would like to see the overhead sonar further up the bridge.
I'm surprised that the corp of engineers have not decided to bring in one of their many dredges to deepen the second channel
Isn’t the red part of the bridge actually the above water portion?
Another solid update, Jeff! I can hear Jack Webb saying, "Just the facts, ma'am." Though he never actually said that.
I believe i read somewhere that the Dali has indeed come into contact with the river floor due to the weight of the bridge and roadway that landed on its bow.
at 6:09 a single tugboat pushing a barge right by one of the still standing unprotected pillars X_X
Fyi those images have intentionally been blurred, the actual resolution is many times what they've provided
@7:00 I think that was a file photo. they were pulling up Railroad Ties/Heavy Wood Timbers, the FSK Bridge didn't have tracks, so not sure where thay would have come from.
Sonar has gotten very good.
FYI the square you say next to maresk is a med box.. or msc shipping company
what instructions have been given to the crew should there be any unanticipated movement of their ship? What boats and first responders are nearby?
Has anything been said about how long to clear the other side of that channel for traffic?
can you do a video whit the picture the army corps was using yesterday
I hope this question is not stupid.. but did they only dig deep between the Dollie’s? Why is it deep enough on the rest of the river?
A few other Bridges have been hit in the last couple of days I don't know if you've been looking out for that and how many people ended up going into the water have they come up with an official word yet
I don’t get it, sonar is for underwater. How do they get above surface images? Doesn’t look like SAR, so LiDAR? How do you combine the data?
The red parts are above water and it's from lidar which is a form of radar digitizer