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Baltimore Bridge

Posted by Beezabryan <iframe src='https://members5.boardhost.com/classicbikemart/info/user=Beezabryan' width='330' height='300' border=0 style='border:none;'> on March 27, 2024, 9:02 pm

https://www.bbc.co.uk/news/av/world-us-canada-68663488

RIP the workmen whose bodies are still unrevovered.

BeezaBryan

He knows not where he's going, For the ocean will decide,
Its not the destination, It's the glory of the ride (Edward Monkton, Zen Dog)

Re: Baltimore Bridge

Posted by Brickboy <iframe src='https://members5.boardhost.com/classicbikemart/info/user=Brickboy' width='330' height='300' border=0 style='border:none;'> on March 27, 2024, 9:22 pm, in reply to "Baltimore Bridge"

Exactly. Poor buggers and their families. I read they were from the south so perhaps Mexican migrants leaving families with no income as well as the sadness of sudden loss.

Re: Baltimore Bridge

Posted by geoff the bonnie <iframe src='https://members5.boardhost.com/classicbikemart/info/user=geoff+the+bonnie' width='330' height='300' border=0 style='border:none;'> on March 27, 2024, 11:07 pm, in reply to "Re: Baltimore Bridge"

Just fortunate the bridge had been closed to traffic for pothole repairs apparently. I doubt they will find the lost men in that river.
There has been criticism that the bridge had not had a barrier installed around the towers but they still got passed an inspection

Re: Baltimore Bridge

Posted by MadMike <iframe src='https://members5.boardhost.com/classicbikemart/info/user=MadMike' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 12:17 am, in reply to "Re: Baltimore Bridge"

Barrier around the tower? Geoff just imagine what would be needed to stop 80,000 tons of ship travelling at around 6 mph. It would have to resist a force of around 1,576,960,000 foot pounds force, or some such figure!!!!!!!

Other opinions may be available but this one is always correct.

Re: Baltimore Bridge

Posted by geoff the bonnie <iframe src='https://members5.boardhost.com/classicbikemart/info/user=geoff+the+bonnie' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 7:46 am, in reply to "Re: Baltimore Bridge"

The barriers they are using on bridge towers are a long concrete ramp which the ship bottoms on and slows it down before it hits the steel or concrete support. They are already in use around the World.
Some of the cruise ships are near 200,000 tons now. They are more likely to avoid these collisions due to having 4 engines and driven by electric motors from the generating engines. There may be a few more bridge having the concrete underwater ramps installed following this collision. The Bridge at Lisbon is fairly new and a lot of shipping goes under that one which also has rail on it. Called the singing bridge due to the wind going over making a lot of noise

Re: Baltimore Bridge

Posted by calidavid <iframe src='https://members5.boardhost.com/classicbikemart/info/user=calidavid' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 8:21 am, in reply to "Re: Baltimore Bridge"

It will be interesting to see how quickly the Americans remove the old trellis work, and their techniques in doing so. It is certain to be awesome.

Re: Baltimore Bridge

Posted by pete__s <iframe src='https://members5.boardhost.com/classicbikemart/info/user=pete__s' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 10:11 am, in reply to "Re: Baltimore Bridge"

Nope it was open, the bridge manager got 90 seconds warning to halt traffic.

FYI here in Edinburgh, the Forth Road Bridge (1964 one) had barriers built round the towers in the 90s, piled, walls, stone and concrete filled and all done without touching the towers (about 1m away).

The new crossing has no obvious protection for the N and S tower apart from the sea bed The centre tower was built on the Beamer rock so any ship will have to ride up that quite a lot to hit it.

This what you need

N tower old Forth bridge from google maps

Re: Baltimore Bridge

Posted by Beezabryan <iframe src='https://members5.boardhost.com/classicbikemart/info/user=Beezabryan' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 10:13 am, in reply to "Re: Baltimore Bridge"

The bridge was closed in response to a Mayday from the vessel.

BeezaBryan

He knows not where he's going, For the ocean will decide,
Its not the destination, It's the glory of the ride (Edward Monkton, Zen Dog)

Re: Baltimore Bridge

Posted by Andy C <iframe src='https://members5.boardhost.com/classicbikemart/info/user=Andy+C' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 8:50 am, in reply to "Baltimore Bridge"

This is without doubt a tragedy, but the stupid questions being asked by reporters made me cringe such as:

"Why did the bridge collapse so quickly"

Err, well, one of the supports got hit by a frigging great ship what else do you expect to happen?

Who needs a signature anyway......

Re: Baltimore Bridge

https://www.bbc.co.uk/news/world-us-canada-68679930

BeezaBryan

He knows not where he's going, For the ocean will decide,
Its not the destination, It's the glory of the ride (Edward Monkton, Zen Dog)

Re: Baltimore Bridge

Posted by Tonupdave <iframe src='https://members5.boardhost.com/classicbikemart/info/user=Tonupdave' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 11:20 am, in reply to "Re: Baltimore Bridge"

A terrible tragedy not a fan of the jokes but obviously we are not the only ones... the maintenance crew were filling potholes..

Tonupdave..T.U.D.

Re: Baltimore Bridge

Posted by geoff the bonnie <iframe src='https://members5.boardhost.com/classicbikemart/info/user=geoff+the+bonnie' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 11:39 am, in reply to "Re: Baltimore Bridge"

The underwater collision protection ramps are usually out of sight just below the water and will stop a 100,000 ton ship in about 50 yards if travelling at normal docks speeds. Here is an example of how fast a small concrete ramp can stop a ship going in with the engine running and about 9 knots.
I am expecting to see a lot of bridges adopting the concrete ramp protection after this disaster

?si=yqmlYmonhmAzdLZa

Re: Baltimore Bridge

Well either there was no "ramp" or it was simply insufficient to stop a loaded container ship. Stopping in 50 yards was clearly not happening here as the bow of the vessel hit the pylon and ended up with the pylon steel work on top of the ship.

Other opinions may be available but this one is always correct.

Re: Baltimore Bridge

Posted by geoff the bonnie <iframe src='https://members5.boardhost.com/classicbikemart/info/user=geoff+the+bonnie' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 11:56 am, in reply to "Re: Baltimore Bridge"

I dont think the Baltimore bridge had any protection Mike. Just the steel set on a concrete pillar. The ships first point of contact looks like when it hit steel as the bow does not appear crumpled. This will change bridge building throughout the World where they are built in large ports. Just look at the small towers on the Lisbon bridge. This ship was well over 100,000 tons. One i went on last year.
https://youtu.be/3JUyA6NL9V4?si=Xi7aTwm10UCO11Ok

Re: Baltimore Bridge

What is it... everyone bridge experts

Tonupdave..T.U.D.

Re: Baltimore Bridge

Seems so Dave.

BeezaBryan

He knows not where he's going, For the ocean will decide,
Its not the destination, It's the glory of the ride (Edward Monkton, Zen Dog)

Re: Baltimore Bridge

Posted by geoff the bonnie <iframe src='https://members5.boardhost.com/classicbikemart/info/user=geoff+the+bonnie' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 1:20 pm, in reply to "Re: Baltimore Bridge"

Some are and some are not i suppose. I take a lot of interest in bridges on my travels. Some are works of art to look at. The one in New Orleans is not so good as its too low for the ship to go under.

Re: Baltimore Bridge

Posted by geoff the bonnie <iframe src='https://members5.boardhost.com/classicbikemart/info/user=geoff+the+bonnie' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 1:22 pm, in reply to "Re: Baltimore Bridge"

Here is a nice one in Wales area. Penault bridge

Re: Baltimore Bridge

Posted by geoff the bonnie <iframe src='https://members5.boardhost.com/classicbikemart/info/user=geoff+the+bonnie' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 1:25 pm, in reply to "Re: Baltimore Bridge"

Dubrovnic bridge

Re: Baltimore Bridge

I have actually a plan of old London Bridge showing the trades that were living on there also the pins used by the dressmakers that lived on it...and also two Granite block from the London Bridge that was sent to the USA minus four as my mate has a couple as well ..on Dartmoor there are the finnished buttresses that made to widen it that never happened..

Tonupdave..T.U.D.

Re: Baltimore Bridge

Posted by mic80 <iframe src='https://members5.boardhost.com/classicbikemart/info/user=mic80' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 3:06 pm, in reply to "Re: Baltimore Bridge"

When the bridge was built in the 1970's there were no container ships. micW

Re: Baltimore Bridge

Posted by Stuart <iframe src='https://members5.boardhost.com/classicbikemart/info/user=Stuart' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 5:52 pm, in reply to "Re: Baltimore Bridge"

Hi,

>When the bridge was built in the 1970's there were no container ships.

There were. Numerous. When that bridge opened, I'd been working for P&O for five years. Europe to North America alone was containerised in the 1960's.

Regards,

Re: Baltimore Bridge

Posted by Lannis <iframe src='https://members5.boardhost.com/classicbikemart/info/user=Lannis' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 3:27 pm, in reply to "Re: Baltimore Bridge"

Or Crashing Into Things experts.

Last month, the CEO of the company that owns that container ship got drunk (.23 BAC), drove her Tesla through a wall into a lake, and drowned.

Coincidences abound. She was the sister in law of Senate leader Mitch McConnell, too.

Lannis

I don't take health advice from people who think the world is overpopulated.

Re: Baltimore Bridge

Posted by geoff the bonnie <iframe src='https://members5.boardhost.com/classicbikemart/info/user=geoff+the+bonnie' width='330' height='300' border=0 style='border:none;'> on March 28, 2024, 10:14 pm, in reply to "Re: Baltimore Bridge"

I love looking at road bridges either ultra modern or my favourite the Fingle Bridge on Dartmoor. I always like to get a photo of the ones i like.
Think i just joined NVNL bridge club

Re: Baltimore Bridge

Posted by Tonupdave <iframe src='https://members5.boardhost.com/classicbikemart/info/user=Tonupdave' width='330' height='300' border=0 style='border:none;'> on March 29, 2024, 10:15 am, in reply to "Re: Baltimore Bridge"

I was chief Marshal at Fingle Bridge for the Exeter trial for many years with my kids helping the climb through the woods is roughly 3/4 of a mile and ruddy hard on foot let alone bikes and cars.. Lands End Trial this weekend my son Gra is chief Marshall on that one of motor sports oldest events..

Tonupdave..T.U.D.

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