Go Back   Professional Soldiers ® > The Pipeline (Special Forces Training) > 18C

Reply
 
Thread Tools Display Modes
Old 09-19-2022, 09:07   #1
Golf1echo
Area Commander
 
Golf1echo's Avatar
 
Join Date: Sep 2010
Location: Western Carolina in the rainforest,4000' along the Eastern Cont. Div.
Posts: 1,405
Bailey Bridge failure in Puerto Rico

Some footage of a bridge failure in Puerto Rico caused by hurricane, or was it…

So the bridge was placed in 2017 after the last hurricane, observation tells me the length of the span and supports seem to have been a temporary fix possibly exceeding best practice specifications. Five years later another hurricane washes it away. I’m not sure I would call this a bridge failure, more of an infrastructure priority failure…
__________________
"It is because they have so much to give and give it so lavishly...that men love the mountains and go back to them again and again." Sir Francis Younghusband

Essayons

By Dand

"In the school of the wilds,there is no graduation day"Horace Kephart
Golf1echo is offline   Reply With Quote
Old 09-19-2022, 10:00   #2
JJ_BPK
Quiet Professional
 
JJ_BPK's Avatar
 
Join Date: Apr 2008
Location: 18 yrs upstate NY, 30 yrs South Florida, 20 yrs Conch Republic, now chasing G-Kids in NOVA & UK
Posts: 11,637
I think the bridge did its job, as designed, but a Bailey bridge was not designed for that level of abuse..

In this video clip, the bridge is seen being ripped off its mooring points and "floating away".

https://twitter.com/i/status/1571691855695290368

I suspect this one was installed using Bailey Boats(?) which added to the drag surface. It had little chance of survival.

ref: bailey bridge
Attached Images
File Type: jpg EHM_Blackfriar's_Bridge_0.jpg (42.9 KB, 26 views)
File Type: jpg Bailey-2.jpg (84.2 KB, 23 views)
__________________
Go raibh tú leathuair ar Neamh sula mbeadh a fhios ag an diabhal go bhfuil tú marbh

"May you be a half hour in heaven before the devil knows you’re dead"
JJ_BPK is offline   Reply With Quote
Old 09-19-2022, 10:18   #3
Badger52
Area Commander
 
Badger52's Avatar
 
Join Date: Jan 2011
Location: Western WI
Posts: 6,503
CBS News on the bridge "ripped" away. Someone with a Twitter account who likes slaying sacred cows should mention about the thing being placed as a band-aid measure in 2017. As mentioned, seems it was never intended to be a permanent fix?
__________________
"Civil Wars don't start when a few guys hunt down a specific bastard. Civil Wars start when many guys hunt down the nearest bastards."

The coin paid to enforce words on parchment is blood; tyrants will not be stopped with anything less dear. - QP Peregrino
Badger52 is offline   Reply With Quote
Old 09-19-2022, 12:50   #4
Golf1echo
Area Commander
 
Golf1echo's Avatar
 
Join Date: Sep 2010
Location: Western Carolina in the rainforest,4000' along the Eastern Cont. Div.
Posts: 1,405
Somewhere I still have the field manuals on bridging but here are a few excerpts from the web:

Bailey bridges continue to be used extensively in civil engineering construction projects and to provide temporary crossings for pedestrian and vehicle traffic.

The Bailey M2 Military bridge is still in use today by the U.S. military and is also being sold to State DOT's for use as temporary structures during rehabilitation, construction, or an emergency. Figure 2.6 below depicts a Bailey Bridge being field assembled by U.S. military forces.
__________________
"It is because they have so much to give and give it so lavishly...that men love the mountains and go back to them again and again." Sir Francis Younghusband

Essayons

By Dand

"In the school of the wilds,there is no graduation day"Horace Kephart

Last edited by Golf1echo; 09-19-2022 at 13:00.
Golf1echo is offline   Reply With Quote
Old 09-20-2022, 18:04   #5
adal
Quiet Professional
 
adal's Avatar
 
Join Date: Mar 2007
Location: Flagstaff, AZ
Posts: 313
Quote:
Originally Posted by Golf1echo View Post
Somewhere I still have the field manuals on bridging but here are a few excerpts from the web:

Bailey bridges continue to be used extensively in civil engineering construction projects and to provide temporary crossings for pedestrian and vehicle traffic.

The Bailey M2 Military bridge is still in use today by the U.S. military and is also being sold to State DOT's for use as temporary structures during rehabilitation, construction, or an emergency. Figure 2.6 below depicts a Bailey Bridge being field assembled by U.S. military forces.
This bridge looks like a Double - Double. My beginning army time was a medic with an engineer battalion. I spent enough time Heaving that I got a 12C secondary.

Bridge looks too low with no decent footings. (Or no plan if the water got that high.)

Bridged many a gap with that damn thing.
__________________
A great pleasure in life is doing what others say you can't. - Recent fortune cookie
adal is offline   Reply With Quote
Old 09-22-2022, 05:00   #6
Golf1echo
Area Commander
 
Golf1echo's Avatar
 
Join Date: Sep 2010
Location: Western Carolina in the rainforest,4000' along the Eastern Cont. Div.
Posts: 1,405
Quote:
Originally Posted by adal View Post
This bridge looks like a Double - Double. My beginning army time was a medic with an engineer battalion. I spent enough time Heaving that I got a 12C secondary.

Bridge looks too low with no decent footings. (Or no plan if the water got that high.)

Bridged many a gap with that damn thing.
Adal I saw that, together with the width and length they were reaching, practically a thru truss bridge. Difficult situation for the abutments and anchors with such little contour and the heavy rains I assume they get from time to time.

Sounds like you got a fair share of repairing hands and fingers then.

Moving forward they may want to consider a Mabey Bridge, developed by a former manufacturer of the Bailey Bridge but has permanent applications. https://www.mabeybridge.com/products...dging-overview

I certainly have sympathy for people going through hurricanes however IIRC there was some questionable governance regarding the 2017 events…*

Here is a cool (-20f) application of a Bailey Bridge still in use. The location is old Camp Hale, training area for the 10th Mountain Division and 99th Infantry Battalion Separate during WWII. The remaining foundations of the main hall/ gymnasium can be seen in the background. Typical use in this case is for pedestrians, snow mobiles and Razor type vehicles.

Edit: * https://www-foxnews-com.cdn.ampproje...ne-outages.amp
Attached Images
File Type: jpeg D53A774B-1762-42F7-8EC2-76C388265FC7.jpeg (106.7 KB, 19 views)
File Type: jpeg 9A280C29-BC7B-4286-B583-F2FF6EF94F47.jpeg (73.9 KB, 17 views)
__________________
"It is because they have so much to give and give it so lavishly...that men love the mountains and go back to them again and again." Sir Francis Younghusband

Essayons

By Dand

"In the school of the wilds,there is no graduation day"Horace Kephart

Last edited by Golf1echo; 09-24-2022 at 17:50.
Golf1echo is offline   Reply With Quote
Old 10-19-2022, 18:10   #7
Golf1echo
Area Commander
 
Golf1echo's Avatar
 
Join Date: Sep 2010
Location: Western Carolina in the rainforest,4000' along the Eastern Cont. Div.
Posts: 1,405
Ran across a historical photo of Camp Hale back in the day, not sure if it’s the same area as the current bridge but it’s the same creek.
Attached Images
File Type: jpg A8CB98B8-2829-4B9D-8AEE-6782BAEC807C.jpg (73.2 KB, 21 views)
__________________
"It is because they have so much to give and give it so lavishly...that men love the mountains and go back to them again and again." Sir Francis Younghusband

Essayons

By Dand

"In the school of the wilds,there is no graduation day"Horace Kephart

Last edited by Golf1echo; 10-19-2022 at 18:14.
Golf1echo is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Forum Jump



All times are GMT -6. The time now is 04:36.



Copyright 2004-2022 by Professional Soldiers ®
Site Designed, Maintained, & Hosted by Hilliker Technologies