Go Back  PPRuNe Forums > Aircrew Forums > Military Aviation
Reload this Page >

The Kerch Bridge Thread

Military Aviation A forum for the professionals who fly military hardware. Also for the backroom boys and girls who support the flying and maintain the equipment, and without whom nothing would ever leave the ground. All armies, navies and air forces of the world equally welcome here.

The Kerch Bridge Thread

Old 20th Oct 2022, 23:32
  #241 (permalink)  
fdr
 
Join Date: Jun 2001
Location: 3rd Rock, #29B
Posts: 2,587
Received 543 Likes on 169 Posts
Originally Posted by MikeSnow
After removing the road surface of the damaged span, they are now cutting the remaining metal structure into small pieces, which are then loaded on a barge:
Russia is a master of OpSec! Excellent idea to have "critical" infrastructure designed/built by the other side.
fdr is offline  
Old 20th Oct 2022, 23:59
  #242 (permalink)  
 
Join Date: Dec 2017
Location: Yakima
Posts: 475
Received 97 Likes on 37 Posts
Originally Posted by fdr
Russia is a master of OpSec! Excellent idea to have "critical" infrastructure designed/built by the other side.
I've been curious as to who is providing the high resolution photos of the collapsed bridge structure, they only help in knowing what's needed to complete the job. Are the pictures from Russian media? There were close shots of the concrete spalling caused by the fuel fire on the rail bridge that suggest it might be wise to use the other track only, and not at full loads. The backup of trucks waiting (3 days?) to cross by ferry suggests there are serious supply issues to Crimea.

I've read posts that say that the canal supplying water to Crimea was for irrigation and not sanitary supply; is there water supply piping on the bridge? If so, that would be a nice target.
Winemaker is online now  
Old 21st Oct 2022, 00:23
  #243 (permalink)  
 
Join Date: Nov 2011
Location: Japan
Posts: 1,635
Received 55 Likes on 32 Posts
Yes, I read somewhere recently that there is vital water piped over the Kerch Bridge, ...not that I have seen any evidence with my eyes.
jolihokistix is offline  
Old 21st Oct 2022, 02:56
  #244 (permalink)  
Thread Starter
 
Join Date: Feb 2006
Location: Hanging off the end of a thread
Posts: 29,891
Received 1,332 Likes on 603 Posts
Well it seems in 2020 it hadnít been resolved, I heard the bridge had a supply somewhere, article to long to copy.

https://www.opendemocracy.net/en/odr...-water-crisis/
NutLoose is offline  
Old 21st Oct 2022, 03:50
  #245 (permalink)  
Thread Starter
 
Join Date: Feb 2006
Location: Hanging off the end of a thread
Posts: 29,891
Received 1,332 Likes on 603 Posts
More on the repairs

NutLoose is offline  
Old 21st Oct 2022, 07:32
  #246 (permalink)  
Ecce Homo! Loquitur...
 
Join Date: Jul 2000
Location: Peripatetic
Posts: 15,645
Received 750 Likes on 371 Posts
Zelensky: 'Ukraine didn't order Crimean Bridge attack.'

President Volodymyr Zelensky told the Canadian CTV news outlet that Russian domestic conflicts could cause the explosion.

"We definitely did not order that, as far as I know," Zelensky said.
ORAC is online now  
Old 21st Oct 2022, 11:15
  #247 (permalink)  
fdr
 
Join Date: Jun 2001
Location: 3rd Rock, #29B
Posts: 2,587
Received 543 Likes on 169 Posts
Originally Posted by ORAC
Zelensky: 'Ukraine didn't order Crimean Bridge attack.'
President Volodymyr Zelensky told the Canadian CTV news outlet that Russian domestic conflicts could cause the explosion.
"We definitely did not order that, as far as I know," Zelensky said.
If Ukraine had intended to damage the bridge, they would have done simultaneous attacks on the other supply routes, to make the point, and let the hint drop with Farquard Jnr. The value in the attack would be the shock to the army on its supply chain, that didn't happen. I doubt the explosives came from Ukraine, Moldova, Romania, Georgia, Armenia, etc, I think the came out of the local GRU or KGB supply.
IMHO.
fdr is offline  
Old 21st Oct 2022, 11:22
  #248 (permalink)  
Thread Starter
 
Join Date: Feb 2006
Location: Hanging off the end of a thread
Posts: 29,891
Received 1,332 Likes on 603 Posts
Replacement bridge spans already constructed!! sounds like they started early

https://www-flashcrimea-com.translat..._x_tr_pto=wapp

– In total, more than 1,200 tons of metal structures have been manufactured by the factories for the restoration of the Crimean Bridge, of which 890 tons have already been delivered to the production base. Delivery of the rest of the cargo is expected in two days, the press service of Rosavtodor said.

For the parallel organization of work on the installation of spans, four slipways have been built, according to Rosavtodor.

“On three of them, the pre-assembly of superstructures has already begun, ” the report says.

Rosavtodor reports that more than 40 tons of high-strength bolts and 10 km of welds will be needed to strengthen the four spans. The assembled superstructures, according to the developed technology, are delivered from slipways to the place of further sliding, which the builders will start in early November.
NutLoose is offline  
Old 22nd Oct 2022, 00:45
  #249 (permalink)  
 
Join Date: Jun 2009
Location: East Sussex
Posts: 477
Received 4 Likes on 2 Posts
Originally Posted by NutLoose
Replacement bridge spans already constructed!! sounds like they started early

https://www-flashcrimea-com.translat..._x_tr_pto=wapp

Sounds like they started before it was blown up
WB627 is offline  
Old 22nd Oct 2022, 03:36
  #250 (permalink)  
 
Join Date: Nov 2007
Location: Australia
Posts: 2,509
Likes: 0
Received 14 Likes on 14 Posts
Originally Posted by WB627
Sounds like they started before it was blown up
Itís basically steel and concrete. Wouldnít take long at all.
Flying Binghi is offline  
Old 4th Nov 2022, 22:44
  #251 (permalink)  
Thread Starter
 
Join Date: Feb 2006
Location: Hanging off the end of a thread
Posts: 29,891
Received 1,332 Likes on 603 Posts
Repairs ongoing, love the colour of the crane

NutLoose is offline  
Old 4th Nov 2022, 23:17
  #252 (permalink)  
 
Join Date: Nov 2007
Location: Australia
Posts: 2,509
Likes: 0
Received 14 Likes on 14 Posts
Originally Posted by NutLoose
Repairs ongoing, love the colour of the crane


Seems to be a fairly leisurely repair operation. I’ve seen larger council work crews fixing roadway potholes here in Australia..
Flying Binghi is offline  
Old 5th Nov 2022, 00:16
  #253 (permalink)  
 
Join Date: Jan 2008
Location: Glorious Devon
Posts: 2,274
Received 203 Likes on 88 Posts
Originally Posted by Flying Binghi
Seems to be a fairly leisurely repair operation. Iíve seen larger council work crews fixing roadway potholes here in Australia..
You mend them!!!? We have some that have there own weather systems. People come from miles around just to try out the echo.
Ninthace is offline  
Old 5th Nov 2022, 07:12
  #254 (permalink)  
Ecce Homo! Loquitur...
 
Join Date: Jul 2000
Location: Peripatetic
Posts: 15,645
Received 750 Likes on 371 Posts
Yesterday, Putin was reported on the repair of the Crimean bridge…..

It turned out that it was necessary to change not only the destroyed lanes, but also neighboring ones, but also part of the bridge under the railway track.

1) 4 destroyed spans were dismantled. They plan to restore by December 20.

2) When the destroyed part is restored, the neighboring 4 spans are dismantled, they are deformed. plan to restore by March 30.

3) The railway line has turned into a single track, you can’t ride on the second one. Two spans will have to be dismantled. It is planned to restore them on September 15, 2023

ORAC is online now  
Old 5th Nov 2022, 12:18
  #255 (permalink)  
 
Join Date: May 2002
Location: Downeast
Age: 75
Posts: 18,053
Received 327 Likes on 126 Posts
One point to consider....Concrete takes a curing process that requires pre-stressed concrete to cure over a 28 day period before heavy loads can be driven across it. (Unless the Russians have discovered some magic process that does not require that).

Depending upon the building process being used...that could mean a sequential replacement of spans that add to the period of time to complete the whole structure.

The Bridge crew around the corner building our new bridge completes one section....allows two weeks for a partial curing....before driving light vehicles onto the new section....and are working on the next section while the first cures.

They are using a combination of barges and a temporary bridge to build the permanent 3200 foot long bridge.

Working two Shifts a day we can see progress being made...but we are talking years before the project is done.

SASless is offline  
Old 5th Nov 2022, 14:57
  #256 (permalink)  
 
Join Date: Mar 2010
Location: Often in Jersey, but mainly in the past.
Age: 78
Posts: 7,633
Received 82 Likes on 39 Posts
Interesting. One could hope that impatience, driven from above, would accelerate proceedings to bring it back into full use more quicky … followed, of course, by a catastrophic self-generated collapse of the new bits.
MPN11 is offline  
Old 5th Nov 2022, 15:11
  #257 (permalink)  
 
Join Date: Sep 2015
Location: London
Posts: 593
Received 66 Likes on 29 Posts
This all sounds pretty optimal from Ukraine's standpoint: not only is the bridge no longer viable as a military supply route, its repair is consuming resources that can't be deployed elsewhere, it's still viable as an escape route (minus equipment) for Russian soldiers and civilians, and Putin can posture that it's a mere flesh wound. Hopefully hostilities will conclude before repairs are complete, at which point Ukraine can put it permanently out of use with conventional demolition charges. Failing that, everyone now knows it's vulnerable to another strike.
pasta is online now  
Old 5th Nov 2022, 17:07
  #258 (permalink)  
 
Join Date: Dec 2016
Location: Kipling's Twain
Posts: 305
Received 14 Likes on 5 Posts
I believe doctrine would be let the enemy use their resources to almost complete a task before destroying their handiwork. Works wonders for depleting morale.

anxiao is offline  
Old 5th Nov 2022, 17:59
  #259 (permalink)  
 
Join Date: Dec 2012
Location: Co. Down
Age: 82
Posts: 718
Received 40 Likes on 14 Posts
SASless posts: One point to consider....Concrete takes a curing process that requires pre-stressed concrete to cure over a 28 day period before heavy loads can be driven across it.

When the RAF bombed La Coupole, the vast dome used for launching V2s, they took specialist advice before bombing the fuel store and were told it was best to wait until the thousands of tons of concrete was just beginning to cure. The result was a vast expanse of part-set rubble which soon became a fully-cured pile of rubble; the Germans gave up in despair.

It would be too bad if the various interested parties waited a while before they blew up the bridge repair operation. wouldn't it?
Geriaviator is offline  
Old 5th Nov 2022, 18:21
  #260 (permalink)  
 
Join Date: Jul 2008
Location: Only occasionally above FL50
Age: 71
Posts: 194
Likes: 0
Received 4 Likes on 3 Posts
I seem to recall that the Germans proudly announced that the Mohne dam had been repaired within about 6 months of its destruction in the famous raid. Good for morale. However they didnít mention that the associated hydro plant wasnít working again until, I think, 1953! I imagine there were similar delays in restoring much of the other damaged infrastructure.
Andrewgr2 is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.