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Ice Follies - Port Mann Bridge Edition


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#31 n00bxQb

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Posted 04 January 2013 - 09:32 PM

Blaming the drivers.

Drivers are to blame 99% of the time. Aggressive driving habits, lack of attention to surrounding vehicles and road conditions, ignorance and laziness concerning maintenance and proper equipment (i.e. checking tire pressure, inspecting brakes, installing winter tires in the winter, etc.). In this case, de-icing the bridge falls on the maintenance crew, but it's still up to drivers to adjust to foggy and slippery conditions.

Defensive driving
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#32 Pouria

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Posted 04 January 2013 - 10:13 PM

Drivers are to blame 99% of the time. Aggressive driving habits, lack of attention to surrounding vehicles and road conditions, ignorance and laziness concerning maintenance and proper equipment (i.e. checking tire pressure, inspecting brakes, installing winter tires in the winter, etc.). In this case, de-icing the bridge falls on the maintenance crew, but it's still up to drivers to adjust to foggy and slippery conditions.

Defensive driving


Bad bridges and Vancouver drivers are just a bad mix.
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#33 n00bxQb

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Posted 04 January 2013 - 10:30 PM

Bad bridges and Vancouver drivers are just a bad mix.

Agreed, although bad drivers are everywhere, not just Vancouver :P
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#34 sedated

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Posted 04 January 2013 - 11:05 PM

Can it really be the bridges fault that ice got on the road? I mean.. how would you build the bridge so that ice didn't get on there? Do some bridges have like heating pads underneath the road or something?

Just a maitenance inssue. And just a bad year. Usually it's not as cold and ice prone as it has been. Just like when it dumps snow for more than a day. It happens so rarely that it's hard to throw blame around when it happens. I guess they could've been watching the weather and temperature better for maitenance.

But as I first asked.. can a bridge really be blamed for ice on the road?
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#35 SN -Admin

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Posted 04 January 2013 - 11:24 PM

Can it really be the bridges fault that ice got on the road? I mean.. how would you build the bridge so that ice didn't get on there? Do some bridges have like heating pads underneath the road or something?

Just a maitenance inssue. And just a bad year. Usually it's not as cold and ice prone as it has been. Just like when it dumps snow for more than a day. It happens so rarely that it's hard to throw blame around when it happens. I guess they could've been watching the weather and temperature better for maitenance.

But as I first asked.. can a bridge really be blamed for ice on the road?


Just throwing this out there, but the bridge should have been salted/sanded at the very least. As far as I know it wasn't. If the bridge ices easily, as it apparently does, there needs to be some sort of plan to de-ice on cold days.

Drivers here are terrible, as everyone knows. Even so, 40 car accidents aren't normal.
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#36 hudson bay rules

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Posted 04 January 2013 - 11:31 PM

So, after an accident or six, when did it become obvious to the maintenance supervisors that more brine etc was needed?

Edited by hudson bay rules, 04 January 2013 - 11:32 PM.

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#37 Pouria

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Posted 05 January 2013 - 12:26 AM

Can it really be the bridges fault that ice got on the road? I mean.. how would you build the bridge so that ice didn't get on there? Do some bridges have like heating pads underneath the road or something?

Just a maitenance inssue. And just a bad year. Usually it's not as cold and ice prone as it has been. Just like when it dumps snow for more than a day. It happens so rarely that it's hard to throw blame around when it happens. I guess they could've been watching the weather and temperature better for maitenance.

But as I first asked.. can a bridge really be blamed for ice on the road?


Why does the Port Mann bridge have a lot more problems than a bridge like Pattullo?
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#38 Wetcoaster

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Posted 05 January 2013 - 12:29 AM

Just throwing this out there, but the bridge should have been salted/sanded at the very least. As far as I know it wasn't. If the bridge ices easily, as it apparently does, there needs to be some sort of plan to de-ice on cold days.

Drivers here are terrible, as everyone knows. Even so, 40 car accidents aren't normal.

As was noted the de-icing solution was applied the day before (Wednesday 4am) and it was supposed to be effective for 48 hours - it was not.


Transportation Investment Corporation spokesman Max Logan told CTV News the contractor hired to monitor the Port Mann hadn’t doused the bridge with de-icing solution since 4 a.m. Wednesday.



“The amount that they put on they thought was sufficient for a 48 hour period, it obviously was not,” Logan said.


The service provider, Mainroad Contracting, also patrolled the billion-dollar toll bridge six times between 10 p.m. Wednesday and 5 a.m. Thursday, but saw no sign of ice danger.


“Ice did accumulate very rapidly between 5 and 6,” Logan said. “We have said to them that from now on application of that de-icing solution every 48 hours is not sufficient. It needs to happen more frequently, at least once a day when we have conditions like tonight and yesterday.”


Logan said sand is generally not used on roads in the Lower Mainland, but that salt could be laid in addition to the de-icing solution, which consists of a brine-saltwater mix.

http://bc.ctvnews.ca/40-cars-crash-on-poorly-de-iced-port-mann-bridge-1.1099460#ixzz2H5GXy01z
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#39 Wetcoaster

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Posted 05 January 2013 - 12:30 AM

Why does the Port Mann bridge have a lot more problems than a bridge like Pattullo?

Speed.
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Always listen to experts. They'll tell you what can't be done and why. Then do it.

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#40 Pouria

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Posted 05 January 2013 - 12:44 AM

Speed.


Speed also happens on Pattullo. Seen cars go by me at 120 kph when it isn't busy.
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#41 inane

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Posted 05 January 2013 - 08:00 AM

Can it really be the bridges fault that ice got on the road? I mean.. how would you build the bridge so that ice didn't get on there? Do some bridges have like heating pads underneath the road or something?

Just a maitenance inssue. And just a bad year. Usually it's not as cold and ice prone as it has been. Just like when it dumps snow for more than a day. It happens so rarely that it's hard to throw blame around when it happens. I guess they could've been watching the weather and temperature better for maitenance.

But as I first asked.. can a bridge really be blamed for ice on the road?


Knight St bridge is heated by electric cables in tthe bridge deck. There's also this one in Essex Ontario: http://www.canada.co...df-b1b821abc07b

You'd think for 3 billion they could have come up with something similar.
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#42 Harbinger

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Posted 05 January 2013 - 11:59 AM

Knight St bridge is heated by electric cables in tthe bridge deck. There's also this one in Essex Ontario: http://www.canada.co...df-b1b821abc07b

You'd think for 3 billion they could have come up with something similar.


Why would a private company care about such things?
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