Baltimore Bridge collapse

[speeder]

Looks like it was built by the same company!

[URY914]

Originally Posted by speeder

Looks like it was built by the same company!

I'd say designed by the same company.
Any builder can follow the same plans and it will look the same.

[Baz]

Rut roh....

So now it is coming out from port workers that the ship had 2 days of electrical "severe" problems at dock and left anyway.

Dali cargo ship suffered 'severe electrical problem' while docked in Baltimore days prior to bridge collapse crash that saw it suffer 'total power failure, loss of engine failure', port worker says....

https://www.dailymail.co.uk/news/article-13246079/Dali-cargo-ship-suffered-severe-electrical-problem-docked-Baltimore-days-prior-bridge-collapse-crash-saw-suffer-total-power-failure-loss-engine-failure-port-worker-says.html

[A930Rocket]

When they rebuild the bridge, would it be expedited if they went with the same bridge or do they design a new bridge from scratch? Obviously, adding some kind of bridge protection would be employed, I would think.

[speeder]

Originally Posted by A930Rocket

When they rebuild the bridge, would it be expedited if they went with the same bridge or do they design a new bridge from scratch? Obviously, adding some kind of bridge protection would be employed, I would think.

Normally, when large bridges get replaced, they have to build the new one next to the old one so that traffic is not interupted for years. I've seen this done for the Bay Bridge in SF, the 6th street bridge in LA, etc.

They don't have to worry about that for this one. They can use the existing pylons and foundations if they want.

[KFC911]

Originally Posted by URY914

There is a bridge here in Jacksonville that is the same design as the Key. Compare the below pic with the pic of the Key above. For what it's worth....

Which bridge is that (over which road)? When I lived there, a work friend's hubby was head honcho (or one of them) for building the Dame's Point bridge. I don't mind sailing under them (that one & the Buckman, etc.) but now (as I've gotten older, I get white knuckled as I drive over both of those .... didn't used to bother me .... at all. I'm not alone .... it is a real phobia for some folks... but it just makes me uncomfortable now .

This won't help...

That's a ugly structure ... at least the Dame's Point bridge is beautimous .

I could NOT drive across Lake Ponchartrain these daze fwiw .

[A930Rocket]

From CNN:

According to a timeline provided Wednesday by the NTSB, alarms on the ship blared just before 1:25 a.m. ET Tuesday as the ship moved through the channel as it left the port. About that time, the voyage data recorder ceased documenting things like audio, GPS positions and speed. (Video available before the NTSB released its timeline shows the ship’s lights going out at 1:24 a.m., before turning back on, and then flickering off and on again between 1:26 a.m. and 1:27 a.m.)

The data recording resumed at 1:26:02 a.m. – about 63 seconds after the alarms started – and the pilot could be heard issuing steering commands to the crew, according to the NTSB timeline.

At 1:26:39 a.m., the pilot sent out a radio call for help from tugboats, which typically help ships in earlier stages of leaving port. About the same time, a pilot association dispatcher phoned the Maryland Transportation Authority duty officer regarding the ship’s lights blacking out, according to the NTSB.

At 1:27:04 a.m., the pilot ordered for one anchor to be dropped and gave additional steering commands.

The pilot radioed just a short time later that the ship had lost power and was closing in on the bridge. A duty officer for the transportation authority, using radio, ordered other transportation authority officers to shut down traffic to the bridge – those officers were already on site because construction work was happening there, the NTSB said.

At 1:29:33 a.m., the ship’s recorder captured sounds consistent with the vessel striking the bridge, the NTSB said. Six seconds later, the pilot reported to the Coast Guard by radio that the bridge was down, the NTSB said.

[unclebilly]

So… back to Craig’s posts. Do you think the ship’s computer system was hacked?

[URY914]

Originally Posted by KC911

Which bridge is that (over which road)? When I lived there, a work friend's hubby was head honcho (or one of them) for building the Dame's Point bridge. I don't mind sailing under them (that one & the Buckman, etc.) but now (as I've gotten older, I get white knuckled as I drive over both of those .... didn't used to bother me .... at all. I'm not alone .... it is a real phobia for some folks... but it just makes me uncomfortable now .

This won't help...

That's a ugly structure ... at least the Dame's Point bridge is beautimous .

I could NOT drive across Lake Ponchartrain these daze fwiw .

The Hart Bridge.

https://en.wikipedia.org/wiki/Hart_Bridge

[berettafan]

Originally Posted by unclebilly

So… back to Craig’s posts. Do you think the ship’s computer system was hacked?

I’m gonna guess no as I can’t see why they’d cause electrical issues in port. Might’ve (should’ve?) caused them to figure it out while docked.

[A930Rocket]

From the timeline above, why would the data recording stop working for about a minute? I would’ve thought it would be battery backed up, so there is no loss of data.

Does the same happen to airplanes, no power, no data?

[berettafan]

Perhaps it was working fine but there was, due to systems being down, nothing to document.

[flatbutt]

Is the ship now considered unsafe? Must it be offloaded before it can be moved?

[3rd_gear_Ted]

They are looking hard at dirty fuel.
Bunker oil is nasty stuff

[dsfnctn]

Originally Posted by 3rd_gear_Ted

They are looking hard at dirty fuel.
Bunker oil is nasty stuff

Bingo
The fuel quality these ships burn is crap. Once the boat is under way its a different thing but ideling around harbor fuel quality issue.

[rfuerst911sc]

This article states two tug boats moved the ship from the dock and positioned the ship towards the bridge . Then they peeled off which apparently is standard procedure . I bet that procedure gets changed to the tugs can peel off AFTER the ship they are guiding passes the bridge .

https://www.usatoday.com/story/news/investigations/2024/03/27/tugboats-baltimore-key-bridge-disaster/73123627007/

[Zeke]

I think that would be up to the port pilot. Any word on that? Pilots here in LB take the ships out quite a way. Miles past our breakwater.

[URY914]

I'm pretty sure the pilots aren't saying anything about anything.

[unclebilly]

Aside from the unimaginable losses, here is what I’m curious about.

1. How are they going to remove the old bridge debris? I know there are barge cranes enroute but they can’t lift an entire bridge section.

1a. How do they cut the bridge sections into liftable segments without shock loading the crane?

1b. How do they get a man into position to cut the bridge sections? Is this torch work or some crane mounted ‘jaws of life’ type pincer machine?

2. How do they get the barges to the bridge and keep them there? Presumably they would set the anchors upstream and the barges would be positioned downstream where the bridge debris is. Likely they would triangulate the anchors to prevent side shifting. It seems like the barges need to be upstream of the bridge but they can’t get there… yet.

3. It appears to me that some sea cans fell from the Dali. How do they deal with that and the contents?

4. Will there be criminal charges against the captain or pilots? 6 people died.

5. How many ships are stranded in Baltimore right now? Who pays for this?

6. If they have to unload Dali partially before they move it, how do they do this?

7. How deep is the water there? Is Dali aground? Is there risk of it sinking there?

8. Is it time to buy Maersk stock?

[Sooner or later]

My guess

Criminal charges only if crew/operator/owners knew and ignored critical operational issues that led to the collision

Insurance will be on the hook for other shipping losses delays. I read the following yesterday
https://www.cnbc.com/2024/03/28/baltimore-disaster-may-be-largest-ever-marine-insurance-payout-lloyds-.html

I don't believe the ship is grounded.