Bridge collapses in Washington state

  • #26
Evo
Mentor
23,138
2,679
Even then the clearance was higher in the center lane that in the outside lane. The trucking company had paid for a local escort. Who knew what and when did they know it. :)

PS I made a late edit on my previous post.
I made a late edit on my post. :devil:

Aren't local escorts usually for wider than normal loads? Perhaps his load was both, an escort car won't help if no one verified bridge height. Doesn't sound like it's the trucker's fault.
 
  • #28
Evo
Mentor
23,138
2,679
Well, he had a local escort with a pole for height that cleared, according to WSDOT, the pole had to be 5" higher than the truck's load. His company had clearance in WA for loads up to 15'9". Apparently he had authorization for the load height to clear this bridge. So, how was he to know he wasn't going to clear? Somewhere someone messed up on what should be attempting to go through this bridge. Large companies have routing software that do this, I'm curious where the mistake lies.
 
  • #29
67
165
This picture gives a better idea of just how big that loaded rig was.

http://www.komonews.com/news/local/I-5-Skagit-River-bridge-collapse-caused-by-oversize-load-208813861.html?tab=gallery&c=y&img=5 [Broken]
 
Last edited by a moderator:
  • #30
lisab
Staff Emeritus
Science Advisor
Gold Member
1,887
616
Well, he had a local escort with a pole for height that cleared, according to WSDOT, the pole had to be 5" higher than the truck's load. His company had clearance in WA for loads up to 15'9". Apparently he had authorization for the load height to clear this bridge. So, how was he to know he wasn't going to clear? Somewhere someone messed up on what should be attempting to go through this bridge. Large companies have routing software that do this, I'm curious where the mistake lies.
According to local radio, when the state gives clearance it just means "You have permission to drive that oversize vehicle on our roads." It's ultimately the driver's responsibility to determine a safe route. As I pointed out in an earlier post, he was too close to his pilot car to do anything after he (presumably) saw the safety antenna hit the girder. A simple lane change would have avoided the hazard.

The company is a Canadian company, and it has a long excellent safety record in Washington State. I can only guess they were familiar with the road and any hazards along the route.
 
  • #31
Evo
Mentor
23,138
2,679
According to local radio, when the state gives clearance it just means "You have permission to drive that oversize vehicle on our roads." It's ultimately the driver's responsibility to determine a safe route. As I pointed out in an earlier post, he was too close to his pilot car to do anything after he (presumably) saw the safety antenna hit the girder. A simple lane change would have avoided the hazard.
I read that he couldn't change lanes because another truck had blocked him.

The larger trucking companies have people that do the routes and authorizations for the drivers, so it wouldn't have been up to the driver to determine.
 
  • #32
jim hardy
Science Advisor
Gold Member
2019 Award
Dearly Missed
9,839
4,873
it hit the corner. Poor guy sure needed to be just a little further over....

[Broken]
source: http://www.thenewstribune.com/2013/05/24/2609664/skagit-river-bridge-collapse.html [Broken]
 
Last edited by a moderator:
  • #33
mheslep
Gold Member
311
728
...

I like designs where rather than hold Mother Nature at bay, the engineers enlist her aid.
+1. Or, at least use a redundant design when going against.
 
  • #34
18
9
Understood, yes, the stimulus funds for infrastructure were in general not used for heavy infrastructure projects. One reason is that the money was supposed to be spent quickly, and there really aren't many unfunded "shovel ready" projects. It takes years and costs millions of dollars to design a bridge and it isn't like there are a stack of designed and approved bridge plans laying around ready to execute.

So much of the funding was spent on easy to execute maintenance things such as re-paving roads that didn't really need to be repaved (I saw several in my area).

That wasn't really my point though; my point was just that are issues aren't because of the recent economic issues, they are because of long-term "neglect". (I put "neglect" in quotes because I think the problems while worthy of attention are somewhat overblown.)

I think a big part of the problem is that too often infrastructure spending itself is viewed through the lens of short term stimulus and pork barrel pet projects, when in reality it's just basic stuff that generally needs to be maintained regularly and after a while rebuilt. So we end up with the kind of waste you describe that largely doesn't address the core problems while our bridges collapse.
 
  • #35
jim hardy
Science Advisor
Gold Member
2019 Award
Dearly Missed
9,839
4,873
I think a big part of the problem is that too often infrastructure spending itself is viewed through the lens of short term stimulus and pork barrel pet projects, when in reality it's just basic stuff that generally needs to be maintained regularly and after a while rebuilt. So we end up with the kind of waste you describe that largely doesn't address the core problems while our bridges collapse.
We build in 'core problems' by choosing what's cheapest to build now instead of picking lowest "Life Cycle Cost" .

A thousand years from now they might use that concrete bridge in another Volkswagen commercial.
[Broken]
(picture courtesy of http://www.popsci.com/cars/article/2002-02/round-reason)

Core problem is our "Throw-Away" mentality, imho. It's incompatible with maintenance.
 
Last edited by a moderator:
  • #36
OmCheeto
Gold Member
2,121
2,543
Core problem is our "Throw-Away" mentality, imho. It's incompatible with maintenance.
Bah! The core problem is not enough workers who know how to handle a hot glue guns.

Cracks in Sellwood Bridge fixed … with glue
Ref

-----------------------
hmmmm..... I wonder if it's possible to preemptively ban me from bridge related threads?
 

Related Threads on Bridge collapses in Washington state

  • Last Post
Replies
16
Views
2K
  • Last Post
2
Replies
48
Views
6K
Replies
80
Views
9K
  • Last Post
Replies
13
Views
2K
  • Last Post
Replies
16
Views
3K
  • Last Post
Replies
4
Views
3K
  • Last Post
Replies
6
Views
2K
Replies
59
Views
4K
Replies
20
Views
3K
  • Last Post
Replies
14
Views
2K
Top