Nah man we need experts to tell us this. That’s why they brought this guy on and the best sound byte they got was him saying these are pieces of concrete 😂😂
They can be glad it wasn't at rush hour. They had 5 minutes to stop traffic which they did, but those working on the deck didn't have much of a chance.
The question is this. Is there a kind of bridge that can withstand this kind of collision. If not, should there be any element in the water? Check out the two bridges crossing from Detroit to Ontario. The old one has two elements in the water. The new one does not have any. Should we build something next time that has no elements in the water? Or maybe that is too expensive? Tons of very interesting things to figure out. And his explanation is wonderful for me. I don't like to be spoonfed, I want hints and points to allow me to go on to find out interesting stuff on my own. And he is obviously knowledgeable.
@@mapleveritas2698to my knowledge there is no bridge in the world can withstand such impact from steel monstrosities like cargo ships , they are designed to withstand massive storms even hurricanes but the hit was direct to pillar and that’s it
I'm not sure I live near the Golden Gate and the Bay Bridge, and they have huge "fenders" around the support structures which supposedly will damage the ships before the bridge.
Thank you for knowing the conversion between knots and MPH It was slowing when it collided. The amount of time needed for the anchors to take hold was simply not enough. Thankfully the MaYDAY was sounded early enough that local police were able to stop any further vehicles to cross. 6 of the 8 men reparing potholes perrished. One is in Shock Trauma. One ot the best places he can be and one has been released hours ago.
Let me save you some time. The bridge was a 1.6 miles long delicately, and elegantly designed bridge that was held up by 2 delicately, and elegantly designed sticks and one of those was taken out by a bigly ship
The mystery is why did the ship lose power, why were no pilot boats used to escort it under the bridge and why weren’t there more substantial protective barriers around the base of the bridge supports? I’m kind of surprised this did not happen sooner.
@@HeatherRose2023there was a harbor pilot on the boat. Why do you think there wasn't? They don't use tugboat type things they have specific harbor pilots that ride on the ship because they are familiar with the waterways they guide the captain who guides the ship.
@@DiscoCatsMeow Yes, there was a harbor pilot on board. However, his knowledge of the channel way was of no help in this situation. What was need was the bolstering of tugboats to push the ship away from the bridge supports.
@@HeatherRose2023 That is what I was wondering. From the video, itself, there should be more than enough room between the columns. That is what made my theory go out the window. I thought the ship was too tall, or had too much cargo. Obviously, I was wrong!
So you have a waterway with high traffic of large and heavy cargo vessels going in and out port, you have a bridge spanning across that waterway, 30 thousand and more vehicles with people passing through that bridge every day and night, a bridge that has proven not being able to withstand an impact on one of its pillars without collapsing. Someone had to imagined and thought about the fact that one day any day or any night a vessel could have collided with one of those pillars, no one ever thought about that, no one had the brain and the balls to be in charge of ensuring safe and supervised navigation under that bridge through those pillars all the time at all hours, well there you have the result, now everyone looking for excuses and trying to "explain" what happened, Bullshit!
Absolutely agree. What they should be saying is that it's an idiotic design and that when you design a structure that is envisaged to last 50 years or more in a growing economy you need to design it with foresight and beef it up a bit, and protect the rather weak looking support pylons by surrounding them with sturdy structures that with stop almost anything. If the truth is known they put cost cutting above safety. But a new bridge is hardly going to work out cheaper.
As an engineer. A Truss bridge, is a type of bridge that is designed to distribute weight and stress evenly throughout its structure. Truss bridges are known for their strength and ability to support heavy loads. Whether a truss bridge would collapse fully on first impact from a boat would depend on various factors, including the size and speed of the boat, the design and condition of the bridge, and the angle and force of the impact. In general, truss bridges are designed to withstand significant loads and forces, including impacts from vehicles or boats. However, a particularly large or fast-moving boat could potentially cause damage to a bridge upon impact.
When they build them they start at the pier and build out both directions. Continuous steel beam bridges are the same concept. The bridge needs the weight of the next span to hold tension on another span. If this happened to something like a prestress girder bridge the collapse would have stopped at the 2 closest piers. I don't think they can span that far so a moot point. They could also rebuild 1 pier and 2 spans way faster than what this is going to take. I'm just not a fan of making multiple spans work as a single unit dependent on the others.
@@williamrosenow6176 Most definitely 😁😁 It's just a better built bridge.. a prestressed girder bridge, high-strength steel tendons or cables are placed in the concrete girders before the concrete is poured. These tendons are then tensioned, creating a compressive force within the concrete. This pre-compression helps to counteract the tensile stresses that the bridge girders will experience when subjected to loads, such as the weight of vehicles or other live loads. Prestressed girder bridges are known for their ability to span longer distances and carry heavier loads compared to traditional reinforced concrete bridges. They offer advantages such as increased durability, reduced maintenance requirements, and the ability to achieve longer spans with fewer supports. These bridges are commonly used in highway and railway bridge construction where longer spans are required.
@@davidrhodes5604 I'll pretty confidently venture a guess that none of the twisted beams and road deck lying in the river are repairable. The bridge was 1.6 miles in length and it appears that all that is left standing are the ramps on either side that lead up to the truss spans. Those ramps are probably fine. So if we're gonna call replacing well more than half of the bridge a repair job then I bet they "repair it". Don't see it happening in a month though.
“Called in to assess the structural integrity of structures after failure…” I would think you’d want to do that beforehand so it doesn’t actually fail.
It's fairly important afterwards as well. For example, is the remaining structure (if previously an occupied building) safe to reenter? Can it be shored up and rebuilt or should it be torn down? Is it posing additional danger to adjacent structures? Has it compromised underground utilities to other areas previously unknown? These are important questions that need to be carefully assessed and answered.
@@hawkeye7527 Yeah. I was just taking a jab at the wording of the sentence. Because once the structure has failed, it doesn’t have much structural integrity anymore.
This engineer is an expert in structures, and is focussed on the structure of the bridge itself. He completely misses the point that when a bridge crosses a ship channel, it is necessary to prevent a ship from striking the structure of the bridge or its supports. This is done with fenders designed to keep ships away from the pylons and to absorb energy from allisions. The first photograph of the bridge in this video clearly shows that it has no large energy-absorbing fenders around the main pylons, yet "no issues were reported with the Francis Scott Key bridge."
I agree. You can see the dolphins that are there to protect/guide a ship off course safely through. The ship had lost power, could not steer and came in at a bad angle.@@junkboxcustoms
@@junkboxcustoms yea but they were entirely inadequate. Some of the aerial shots show that the ship narrowly missed the only one that could have potentially stopped it. Many, if not most new bridges have substantial dolphins all around critical supports. They may or may not have saved the day here, but they would have given the bridge a much better fighting chance.
I agree 100%. I have lived a few miles from this bridge my entire life. They added those dolphins when the power line towers were built just a few years ago. Highly inadequate but never a thought as that channel and span is 1/4 mile wide. Hindsight @@travisbeagle5691
No way any “protectors” will stop a ship that massive, unless the support piers were surrounded by a considerable amount of land. But that kind of blocks the shipping lane.
@@personzorz-- The Columbia River bridge at Astoria is a through truss bridge across a shipping channel. It was built a few years before the FSK bridge, and it has large fenders around the main pylons.
Thank you! A 300 million dollar patch turns into a $3 billion dollar rebuild. We have a saying in the construction business: "Never enough money to do it right, always enough money to do it twice"
This type of bridge collapse is not uncommon and large ships have taken down many bridges over the years. What puzzles me is that critical infrastructure like this isn't protected by guarding the piers that support the bridge. In most cases like this it isn't the ship hitting the bridge deck that causes the problem but the ship hitting a pier the vertically supports the bridge, but why are those critical piers so often left naked and exposed to potential ship impact? Why isn't there structures in the water to prevent the ship from hitting the piers? Such a defensive structure could function to either absorb the impact from the ship or to divert the ship from impacting the piers -- or to be able to do both.
@@philiplangford9434Tugs were employed until they were no longer required by harbor rules. So now you'll want to demonstrate your expertise on harbor piloting, right?
They don't use tugs they use harbor pilots. Which to me actually makes more sense the pilot is familiar with the waterway. The captain is familiar with the ship so they work together to get the boat out of harbor.
You really don't need an engineering degree to figure out that when a vessel displacing thousands of tons hits an unguarded support pillar it's pretty much game over.
We’re here to find out how the bridge collapsed. Let’s introduce our guest, Captain Obvious. Hello captain, tell us how this happened. A ship hit it. Incredible. Thanks for finally solving that mystery for us.
Glad he cleared that up. I thought it was a missile that took it out. But what I still can't understand, is how did bridge 7 collapse under its own weight?
Because a giant ship hit the bridge. What happened was a boat, also known as a ship in this case. The ship, hit the bridge. And caused the bridge to break and subsequently fall down into the cold water. Now that bridge is Brocken because of the ship that hit the bridge.
I'm not. I thought the cargo was too high, or the bridge was too low. Obviously, as I am not in that field, I was way off. At least, I am seeing some clarification.
I'm a world renound engineer in common sense and after my detailed observations, it's evident that a 100,000 ton cargo ship hit the bridge therefore causing it to collapse.
@@QUICKBOOKS1 many bridges have protective "Dolphins" or fenders to deflect ships. In this case I don't see any and if there were any they were totally inadequate. The two power line towers right near the bridge actually have fenders to protect them from ships.
In shiphandling school they teach you "Speed Kills but Momentum Destroys". 95,000 tons x 8 knots has the same momentum as an average sized (1.5 ton) car hitting at a ridiculous 557,333 mph. Even at 1 knot, the momentum is enormous with that weight, which is why tugs are there to ease them up to the pier when docking.
Like 10 years ago I was looking up jobs on the state site. One of the jobs was a bridge inspector pay was 140k ish a year which required some college. I never forgot about that job because I wondered why every other bridge in my area was rusted and concrete cracked up. Then 5 years later there was an undercover investigation that found the bridge inspector wasn’t showing up to check bridges and the ones he did he never got out of the car.
@@QUICKBOOKS1 You obviously didn’t watch the press conference with Bootygig. Based solely on how uninformed you are I would hazard to guess that you’re a democrat.
The kinetic energy of a fully laden container ship traveling at 8 knots is more than double the energy of an a320 aircraft flying at cruising speed. It’s a powerful force!
Why did it collapse? Duhhh, I don’t know. Why would a ship hitting one of its pilings leaving the bridge with severely compromised structural integrity cause the bridge to collapse? 😖
@0:15 So, "moments after the bridge collapsed" around 1:30 AM this morning, you called and woke up a structural engineer to ask him questions. REALLY? 👎👎
With 50 years worth of construction advancements and updated codes, doubt state will construct a similar bridge so this will be a clean paper including approaches. Who knows, maybe a tunnel is a better for purpose.
Let's ask why did it happen. There do not look like there were any protections at the base and why did the ship go the the right just before hitting the bridge of the left side anchor had been dropped.
I have a dishwasher that has regulations and a toilet with a low water flush. Any boat of size going through a tress bridge or any bridge should have tug boats until the boat gets pass the bridge.
And all those tests the guy talked about having done. Probably cost as much as having the bridge rebuilt… only one test needed…. A big ass boat with a lot of weight ran into it… I would start with a drug and alcohol test 1st. Lol
@@craigsaimes4063 Initial reports (and you can see it on the video prior to the ship hitting the bridge) are that the ship lost power. Steering a ship is achieved by a rudder but if the powerplant is not operating to produce thrust via the propeller(s) it is essentially adrift and out of control. The ship actually called a Mayday for loss of propulsion shortly before the accident. Still, you can bet that the master, pilots, and bridge officers will be tested.
@@briano6268you're totally missing my point. Anyways the boat should of never had clearance to sail. Had propulsion issues amongst other things and had already crashed once in 2016.
Kinetic energy = 1/2 * m * v . assume: ship mass=100.000 tons = 100.000.000. kg , ship velocity=15 km/h KE = 868,055,694.44445 Joule . For illustration, an object with 0.1 kg fall to earth at height of 1 meter is 1 Joule. So 868,055,694.44445 Joule is equal 88,517,046.539 kg fall to earth at height of 1 meter. that is how strong the Kinetic energy that hit the bridge pillar.
The ship’s bow was very steep and was able to reach over the bridge’s substructure to hit the bridge’s pylons - as if the ship was specially ordered to handle the task of destroying the bridge
I know that opinions are like assholes (everybody has one), but I watched an interview with another engineer, and he said that construction standards for a bridge built today and one built in 1979 are significantly different. Further, 1970s cargo ships were half the size of today’s ships. So, is it possible that a modern bridge might have withstood the impact better than an older one? Or are the ships so large they’ll take down anything, no matter how well built?
I'm more concerned with Ships/Rudder operation. A rudder can steer even if a ship has lost power.. If the rudder's operation is not tied into the emergency power generator.. to get steerage back up online in a few seconds .. that is a design failure.
Just a keen observation I’m wondering who the local port pilot taking the vessel to port because were the ship came from is not a coincidence sabotage? Some local person either was or should have been behind the cockpit he knows what happened
They use tugs for docking and embarking. Once they are in the channel and under their own power, tugs are no longer needed. Tugs don't "escort" ships either.
I'm pretty sure it was a 100,000+ ton ship moving at 6 knots hitting the bridges main peir and crushing it that knocked it down. farley simple I thought.
Did the “check engine” light come on ? A colossal system failure like this would compel the idea that dirty deeds were done. The timing of the failure made it impossible to prevent contact.
I hope the replace it with a bridge that is actually beautiful and not a steel and concrete monstrocity. Why can't they build bridges like the Golden Gate or Brooklyn Bridge?
why were their no columns put in and around the main columns supporting the bridge.. most bridges have the support ,,like a bumper per say on to deflect the traffic
A tweet 15 minutes after the accident. MarineTraffic/status/1772545501612671284 The tugs get Dali pointed the right way and leave in the opposite direction. They don't appear to react to a Mayday call from the Dali and it isn't until after the Dali actually hits the bridge other green triangles respond.
If there is a more expensive design, they will put that one up. That is actually what happened in Minnesota, they put up the bridge from the contractor with the highest bid.
I don't know y'all, my friend Kim on Facebook says she thinks there's something fishy going on. I don't know who to trust... This engineer with years of experience in sound engineering practices? Or Kim?
I've got a better question. This happened pretty quickly, there were several cars crossing less than two minutes before it happened. Why are there at least three emergency vehicles on the bridge parked with emergency lights flashing and no traffic when it happened?
Well the ships harbor pilots have been described as one having 10 yrs experience and the other a 1 month apprentice......DEI at its best ....anyone want to guess the race
Oh, I thought it was THE GIANT SHIP HITTING A SUPPORT BEAM... but I'm no engineer.
🤣
LOL I was getting ready to post exactly that, capital letters and all.
Nah man we need experts to tell us this. That’s why they brought this guy on and the best sound byte they got was him saying these are pieces of concrete 😂😂
A nearly 1000 ft cargo ship.going 1.5 knots. Maybe next time they will have a tug boat near by
They can be glad it wasn't at rush hour. They had 5 minutes to stop traffic which they did, but those working on the deck didn't have much of a chance.
It doesn't take a rocket scientist to figure out why a 100,000 ton ship colliding into a main bridge support can take out a bridge.
Lmao
The question is this. Is there a kind of bridge that can withstand this kind of collision. If not, should there be any element in the water? Check out the two bridges crossing from Detroit to Ontario. The old one has two elements in the water. The new one does not have any. Should we build something next time that has no elements in the water? Or maybe that is too expensive? Tons of very interesting things to figure out. And his explanation is wonderful for me. I don't like to be spoonfed, I want hints and points to allow me to go on to find out interesting stuff on my own. And he is obviously knowledgeable.
@@mapleveritas2698 Probably cheaper to just require tug escorts until the ship clears the bridge.
@@mapleveritas2698to my knowledge there is no bridge in the world can withstand such impact from steel monstrosities like cargo ships , they are designed to withstand massive storms even hurricanes but the hit was direct to pillar and that’s it
The cargo ship was only going 9 miles a hour but a ship that big with that much weight would basically destroy any bridge
2:30
I'm not sure
I live near the Golden Gate and the Bay Bridge, and they have huge "fenders" around the support structures which supposedly will damage the ships before the bridge.
Black Swan Event.
Thank you for knowing the conversion between knots and MPH
It was slowing when it collided. The amount of time needed for the anchors to take hold was simply not enough. Thankfully the MaYDAY was sounded early enough that local police were able to stop any further vehicles to cross.
6 of the 8 men reparing potholes perrished. One is in Shock Trauma. One ot the best places he can be and one has been released hours ago.
Let me save you some time.
The bridge was a 1.6 miles long delicately, and elegantly designed bridge that was held up by 2 delicately, and elegantly designed sticks and one of those was taken out by a bigly ship
Let me save you time. There is no bridge that would survive this.
I noticed you didn't use the words "Robust" or "Safety Barrier"
It got hit by a near 1000 foot long, 95,000 ton ship--- period. No mystery
The mystery is why did the ship lose power, why were no pilot boats used to escort it under the bridge and why weren’t there more substantial protective barriers around the base of the bridge supports? I’m kind of surprised this did not happen sooner.
@@HeatherRose2023there was a harbor pilot on the boat. Why do you think there wasn't? They don't use tugboat type things they have specific harbor pilots that ride on the ship because they are familiar with the waterways they guide the captain who guides the ship.
@@HeatherRose2023Shipping.
Company refused to pay for tugs.
@@DiscoCatsMeow
Yes, there was a harbor pilot on board. However, his knowledge of the channel way was of no help in this situation. What was need was the bolstering of tugboats to push the ship away from the bridge supports.
@@HeatherRose2023 That is what I was wondering. From the video, itself, there should be more than enough room between the columns. That is what made my theory go out the window. I thought the ship was too tall, or had too much cargo. Obviously, I was wrong!
The shape of the ship causes it to not hit the bridge at it's foundation where the maximum strength is but further up where it gets weaker ..
So you have a waterway with high traffic of large and heavy cargo vessels going in and out port, you have a bridge spanning across that waterway, 30 thousand and more vehicles with people passing through that bridge every day and night, a bridge that has proven not being able to withstand an impact on one of its pillars without collapsing.
Someone had to imagined and thought about the fact that one day any day or any night a vessel could have collided with one of those pillars, no one ever thought about that, no one had the brain and the balls to be in charge of ensuring safe and supervised navigation under that bridge through those pillars all the time at all hours, well there you have the result, now everyone looking for excuses and trying to "explain" what happened, Bullshit!
When the key bridge was built, No ships were capable of this. They were much smaller.
Absolutely agree. What they should be saying is that it's an idiotic design and that when you design a structure that is envisaged to last 50 years or more in a growing economy you need to design it with foresight and beef it up a bit, and protect the rather weak looking support pylons by surrounding them with sturdy structures that with stop almost anything.
If the truth is known they put cost cutting above safety. But a new bridge is hardly going to work out cheaper.
don't blame the bridge
@@fibonaccisrazor It was a shitty design. One good smack and it takes out the whole thing. No fixing anything.
Actually, he gave a pretty good explanation. I think we need to start making bridges differently.
As an engineer. A Truss bridge, is a type of bridge that is designed to distribute weight and stress evenly throughout its structure. Truss bridges are known for their strength and ability to support heavy loads.
Whether a truss bridge would collapse fully on first impact from a boat would depend on various factors, including the size and speed of the boat, the design and condition of the bridge, and the angle and force of the impact.
In general, truss bridges are designed to withstand significant loads and forces, including impacts from vehicles or boats. However, a particularly large or fast-moving boat could potentially cause damage to a bridge upon impact.
When they build them they start at the pier and build out both directions. Continuous steel beam bridges are the same concept. The bridge needs the weight of the next span to hold tension on another span. If this happened to something like a prestress girder bridge the collapse would have stopped at the 2 closest piers. I don't think they can span that far so a moot point. They could also rebuild 1 pier and 2 spans way faster than what this is going to take. I'm just not a fan of making multiple spans work as a single unit dependent on the others.
@@williamrosenow6176 Most definitely 😁😁
It's just a better built bridge..
a prestressed girder bridge, high-strength steel tendons or cables are placed in the concrete girders before the concrete is poured. These tendons are then tensioned, creating a compressive force within the concrete. This pre-compression helps to counteract the tensile stresses that the bridge girders will experience when subjected to loads, such as the weight of vehicles or other live loads.
Prestressed girder bridges are known for their ability to span longer distances and carry heavier loads compared to traditional reinforced concrete bridges. They offer advantages such as increased durability, reduced maintenance requirements, and the ability to achieve longer spans with fewer supports. These bridges are commonly used in highway and railway bridge construction where longer spans are required.
I'd guess that Ship weighed significantly more than the bridge/leg ... took it out like a sledgehammer.
What is the expert's opinion on the damage to the bridge... will it have to be replaced?
What do you think?
@@briano6268uh, probably not.
@briano6268 honestly, I think with a month of repairs, it'll be alright.
@@davidrhodes5604 I'll pretty confidently venture a guess that none of the twisted beams and road deck lying in the river are repairable. The bridge was 1.6 miles in length and it appears that all that is left standing are the ramps on either side that lead up to the truss spans. Those ramps are probably fine. So if we're gonna call replacing well more than half of the bridge a repair job then I bet they "repair it". Don't see it happening in a month though.
It should buff out.
Anyone who has every played with blocks knows why it collapsed. 🙄
“Called in to assess the structural integrity of structures after failure…” I would think you’d want to do that beforehand so it doesn’t actually fail.
It's fairly important afterwards as well. For example, is the remaining structure (if previously an occupied building) safe to reenter? Can it be shored up and rebuilt or should it be torn down? Is it posing additional danger to adjacent structures? Has it compromised underground utilities to other areas previously unknown?
These are important questions that need to be carefully assessed and answered.
@@hawkeye7527 Yeah. I was just taking a jab at the wording of the sentence. Because once the structure has failed, it doesn’t have much structural integrity anymore.
@@Jmjmjmjmjmjmjmjmjmjmjm1 That's definitely fair.
This engineer is an expert in structures, and is focussed on the structure of the bridge itself. He completely misses the point that when a bridge crosses a ship channel, it is necessary to prevent a ship from striking the structure of the bridge or its supports. This is done with fenders designed to keep ships away from the pylons and to absorb energy from allisions. The first photograph of the bridge in this video clearly shows that it has no large energy-absorbing fenders around the main pylons, yet "no issues were reported with the Francis Scott Key bridge."
There are giant concrete dolphins on either side of the channel and bridge pillars. It was just a worst-case scenario
I agree. You can see the dolphins that are there to protect/guide a ship off course safely through. The ship had lost power, could not steer and came in at a bad angle.@@junkboxcustoms
@@junkboxcustoms yea but they were entirely inadequate. Some of the aerial shots show that the ship narrowly missed the only one that could have potentially stopped it. Many, if not most new bridges have substantial dolphins all around critical supports. They may or may not have saved the day here, but they would have given the bridge a much better fighting chance.
I agree 100%. I have lived a few miles from this bridge my entire life. They added those dolphins when the power line towers were built just a few years ago. Highly inadequate but never a thought as that channel and span is 1/4 mile wide. Hindsight @@travisbeagle5691
No way any “protectors” will stop a ship that massive, unless the support piers were surrounded by a considerable amount of land. But that kind of blocks the shipping lane.
The power poles adjacent to the bridge had impact barriers surrounding the poles, why the bridge supports did not is mind boggling
Probably when they were built
@@personzorz-- The Columbia River bridge at Astoria is a through truss bridge across a shipping channel. It was built a few years before the FSK bridge, and it has large fenders around the main pylons.
Thank you!
A 300 million dollar patch turns into a $3 billion dollar rebuild.
We have a saying in the construction business:
"Never enough money to do it right, always enough money to do it twice"
The ship weighed as much as the bridge! Come on man
This type of bridge collapse is not uncommon and large ships have taken down many bridges over the years. What puzzles me is that critical infrastructure like this isn't protected by guarding the piers that support the bridge. In most cases like this it isn't the ship hitting the bridge deck that causes the problem but the ship hitting a pier the vertically supports the bridge, but why are those critical piers so often left naked and exposed to potential ship impact? Why isn't there structures in the water to prevent the ship from hitting the piers? Such a defensive structure could function to either absorb the impact from the ship or to divert the ship from impacting the piers -- or to be able to do both.
SUUURE Jan.
MDTA incompetence
Because the shipping company was too cheap to contract escort tugs.
Thank you for your comment. You are the first one that I have seen to question the lack of stand-by tugs.
@@philiplangford9434Tugs were employed until they were no longer required by harbor rules. So now you'll want to demonstrate your expertise on harbor piloting, right?
@@diegofondoo1780 Not at all. Just pointing out the flaw in your analysis.
They don't use tugs they use harbor pilots. Which to me actually makes more sense the pilot is familiar with the waterway. The captain is familiar with the ship so they work together to get the boat out of harbor.
should be mandatory when national infrastructure is at risk.
Cuz a ship hit it.
They are going to spend millions on trying to figure out why the bridge collapsed when it's right there in the video. It was hit by a large boat.
sadly YES
Oo! Oo! I know this one without even watching. Its because a 150 thousand ton shipping container rammed one of its main support pylons.
Try more like 95,000 tons ace
You really don't need an engineering degree to figure out that when a vessel displacing thousands of tons hits an unguarded support pillar it's pretty much game over.
We’re here to find out how the bridge collapsed.
Let’s introduce our guest, Captain Obvious. Hello captain, tell us how this happened.
A ship hit it.
Incredible. Thanks for finally solving that mystery for us.
Glad he cleared that up. I thought it was a missile that took it out. But what I still can't understand, is how did bridge 7 collapse under its own weight?
I'm sure the explanation will come With the official government commission report. They are great at magic and bullship
In the entire bridges history not one person might think this could happen . Wow .
Because a giant ship hit the bridge. What happened was a boat, also known as a ship in this case. The ship, hit the bridge. And caused the bridge to break and subsequently fall down into the cold water. Now that bridge is Brocken because of the ship that hit the bridge.
Everyone is an engineer today..
I'm not. I thought the cargo was too high, or the bridge was too low. Obviously, as I am not in that field, I was way off. At least, I am seeing some clarification.
I'm a world renound engineer in common sense and after my detailed observations, it's evident that a 100,000 ton cargo ship hit the bridge therefore causing it to collapse.
Why no tugs?
Nobody asking the right question. Why wasn't the bridge pier protected? The nearby powerlines have more protection than this bridge.
I am not in that field of work, so, I don't know what you mean. Could you clarify that?
@@QUICKBOOKS1 many bridges have protective "Dolphins" or fenders to deflect ships. In this case I don't see any and if there were any they were totally inadequate. The two power line towers right near the bridge actually have fenders to protect them from ships.
In shiphandling school they teach you "Speed Kills but Momentum Destroys". 95,000 tons x 8 knots has the same momentum as an average sized (1.5 ton) car hitting at a ridiculous 557,333 mph. Even at 1 knot, the momentum is enormous with that weight, which is why tugs are there to ease them up to the pier when docking.
You don't have to go to Shiphandling School to understand what a 10 pound Sledgehammer does to a 2x4. The official formula is Weight + Speed = Smash.
The bridge didn’t fail
The ship hitting it did
Why are there little explosions on yhe truss and the support right as it collapses?
Haven't we seen that there were no bollards that protect the footings and piers? Don't the other bridges have those?
It's akin to an out-of-control car taking out a chain-link fence. The fence has no defense...
De-fence has no defence!
Like 10 years ago I was looking up jobs on the state site. One of the jobs was a bridge inspector pay was 140k ish a year which required some college. I never forgot about that job because I wondered why every other bridge in my area was rusted and concrete cracked up. Then 5 years later there was an undercover investigation that found the bridge inspector wasn’t showing up to check bridges and the ones he did he never got out of the car.
That is what I was wondering. How often is a bridge inspected, if I am using the correct term.
Rickety POS bridge. No protection. Bound to happen.
What caused the ship to lose power? And why were there no backups in place?
I’m no conspiracy theorist but something ain’t right about this
Why?
Racism. Duh.
I think you're on the wrong UA-cam Page. Aren't you?
@@QUICKBOOKS1
You obviously didn’t watch the press conference with Bootygig.
Based solely on how uninformed you are I would hazard to guess that you’re a democrat.
"Those are piece of concrete."
Oh, ok.
Seems there should have been protective barriers at the base of these pillars, strong enough to withstand the strike of any ship.
The kinetic energy of a fully laden container ship traveling at 8 knots is more than double the energy of an a320 aircraft flying at cruising speed. It’s a powerful force!
Why did it collapse? Duhhh, I don’t know. Why would a ship hitting one of its pilings leaving the bridge with severely compromised structural integrity cause the bridge to collapse? 😖
@0:15 So, "moments after the bridge collapsed" around 1:30 AM this morning, you called and woke up a structural engineer to ask him questions. REALLY? 👎👎
With 50 years worth of construction advancements and updated codes, doubt state will construct a similar bridge so this will be a clean paper including approaches. Who knows, maybe a tunnel is a better for purpose.
No tunnel, they have tunnels in the region, can't carry hazardous material through them.
Let's ask why did it happen. There do not look like there were any protections at the base and why did the ship go the the right just before hitting the bridge of the left side anchor had been dropped.
I have a dishwasher that has regulations and a toilet with a low water flush. Any boat of size going through a tress bridge or any bridge should have tug boats until the boat gets pass the bridge.
It is called momentum and speed. Moving object hits stationary object called truss bridge. Ripple effect and gravity takes over. News is such BS now.
It's basically a mouse trying to stop a full grown elephant
And all those tests the guy talked about having done. Probably cost as much as having the bridge rebuilt… only one test needed…. A big ass boat with a lot of weight ran into it… I would start with a drug and alcohol test 1st. Lol
@@craigsaimes4063 Initial reports (and you can see it on the video prior to the ship hitting the bridge) are that the ship lost power. Steering a ship is achieved by a rudder but if the powerplant is not operating to produce thrust via the propeller(s) it is essentially adrift and out of control. The ship actually called a Mayday for loss of propulsion shortly before the accident. Still, you can bet that the master, pilots, and bridge officers will be tested.
@@briano6268you're totally missing my point. Anyways the boat should of never had clearance to sail.
Had propulsion issues amongst other things and had already crashed once in 2016.
The news report conclusive dispelled the rumor that it was a UFO! 🙂
Kind of similar with hitting a fly with a brick. 100,000+ tons moving at around 6-10 knots is going to take out anything in its patch.
Big ass ship hit it, duh.🤦♂️
Kinetic energy = 1/2 * m * v .
assume: ship mass=100.000 tons = 100.000.000. kg , ship velocity=15 km/h
KE = 868,055,694.44445 Joule .
For illustration, an object with 0.1 kg fall to earth at height of 1 meter is 1 Joule. So 868,055,694.44445 Joule is equal 88,517,046.539 kg fall to earth at height of 1 meter.
that is how strong the Kinetic energy that hit the bridge pillar.
Bridge piers weren't designed to handle a 100,000 tons hitting it at 8kts.
Because a real damn big boat knocked it off its perch.
The ship’s bow was very steep and was able to reach over the bridge’s substructure to hit the bridge’s pylons - as if the ship was specially ordered to handle the task of destroying the bridge
bridge needed concrete bumpers surrounding the columns
I don't think they went over gravity well enough. Could you explain that again?
A pier was totally wiped out. No truss would survive that. Duh!
I know that opinions are like assholes (everybody has one), but I watched an interview with another engineer, and he said that construction standards for a bridge built today and one built in 1979 are significantly different. Further, 1970s cargo ships were half the size of today’s ships. So, is it possible that a modern bridge might have withstood the impact better than an older one? Or are the ships so large they’ll take down anything, no matter how well built?
I'm more concerned with Ships/Rudder operation. A rudder can steer even if a ship has lost power.. If the rudder's operation is not tied into the emergency power generator.. to get steerage back up online in a few seconds .. that is a design failure.
Where interview with captain?
anybody looking into why the ship lost power?
Spilled some Cappucino on the control panel?
Because it was hit by a 100,000 ton freighter? Of course I'm just spit balling over here, I'm no an engineer.
This is what happens when triangles are no longer triangular.
How many died?
Between 0-1000
They believe 6 construction workers lost their lives.
Really?!?! I think we all know why it happened.
Uhhh, because a loaded cargo ship ran into the support. I'm no engineer, but I think I got this one. You can stop wondering.
Just a keen observation I’m wondering who the local port pilot taking the vessel to port because were the ship came from is not a coincidence sabotage? Some local person either was or should have been behind the cockpit he knows what happened
Because a giant ass ship hit it. On to the next brilliant question.
Don't giant ships like that use tugs anymore??
They use tugs for docking and embarking. Once they are in the channel and under their own power, tugs are no longer needed. Tugs don't "escort" ships either.
No they use a harbor pilot. It is someone who specifically rides on the ship until it's out of the harbor to guide the ship captain.
@@660Oliver OK Thank You! I was wondering that, too, after Tug Boats were in so many comments.
I'm pretty sure it was a 100,000+ ton ship moving at 6 knots hitting the bridges main peir and crushing it that knocked it down. farley simple I thought.
Because a 1000 ton ship hit it!! Load bearing beams get took out and thats it.
Just look at the abutments on power pilots next the bridge.., they’re huge.., the is a truss.., with limited to zero protection
Why did the Baltimore bridge collapse?
"Big weight"
- structural engineer
A behemoth of hundred of thousands of tons slammed into the support beam
Did the “check engine” light come on ?
A colossal system failure like this would compel the idea that dirty deeds were done. The timing of the failure made it impossible to prevent contact.
I hope the replace it with a bridge that is actually beautiful and not a steel and concrete monstrocity. Why can't they build bridges like the Golden Gate or Brooklyn Bridge?
Steel cost too much is why.. and steel is not that great around saltwater.
This shoukd of been forseen. Extra pillars Protecting structure of the bridge and the tugboats should of escorted it at least past the bridge.
A MONSTROUS ship hit it. DUH.
Um....It was hit by a ship that weighs more than the bridge itself....Duh. No mystery.
why were their no columns put in and around the main columns supporting the bridge.. most bridges have the support ,,like a bumper per say on to deflect the traffic
Riveting reporting, guys. "Why did Baltimore's Key Bridge collapse?"... --> Because a ship ran into it.
This has happened to other smaller bridges .....where were the tugs ?....if you lose power they're the backup..
A tweet 15 minutes after the accident. MarineTraffic/status/1772545501612671284 The tugs get Dali pointed the right way and leave in the opposite direction. They don't appear to react to a Mayday call from the Dali and it isn't until after the Dali actually hits the bridge other green triangles respond.
Ship had the mass and speed
From a democrat point of view " tis the bridges fault, and Donald Trump."
This comment applies to those who think this was an accident. This wasn't an accident. Wake up for God's sake.
Stop with conspiracies and watch the videos!
@@QUICKBOOKS1 Wake up.
I wonder if they'll re-design the bridge or put up the same bridge?
If there is a more expensive design, they will put that one up. That is actually what happened in Minnesota, they put up the bridge from the contractor with the highest bid.
We're all engineers.... A big ass ship hit it... That's why it fell
..
The question is why the bridge failed after the big ship collided with the bridge pier
I don't know y'all, my friend Kim on Facebook says she thinks there's something fishy going on. I don't know who to trust... This engineer with years of experience in sound engineering practices? Or Kim?
Ah Duh, 'cause gravity never stops?
The news has become a joke.
1:26
“Truss Bridge”
So…comparatively-weak target?
Easy target?
#TargetTheBridge
I had never heard that term before.
The cheapest bidder put up that bridge.
An amazing feet for a 1000ft ship to his a 25ft wide support structure with a 1/4 mile of open water on either side.
Can't steer wirh no power
Can't steering with no power
Just a giant Erector Set. 95,000 tons at about 5 to 10 miles per is an awesome sledgehammer.😢
That's a piece of rebar. They could have done better by the guy
There was a big whale shaped like a plane that hit it underwater 😮
Crappy design, don't build it the same,it's a high traffic waterway .
Uh, because it was hit by a ship?????
Oh oh! A big ship hit it!
Because a cargo ship hit it. Mystery solved
I've got a better question.
This happened pretty quickly, there were several cars crossing less than two minutes before it happened.
Why are there at least three emergency vehicles on the bridge parked with emergency lights flashing and no traffic when it happened?
There was construction crews on the bridge and they shut the bridge down after the ship put out a mayday
@@rogerprice735 I thought I heard that briefly.
Well the ships harbor pilots have been described as one having 10 yrs experience and the other a 1 month apprentice......DEI at its best ....anyone want to guess the race
Seriously?
a ship ran into it