How the hell does something like this happen?

I had heard a sign had fell. Never knew what happened tho. Supposedly it took about 6 hours to get it cleaned up
 
Majicmike said:
I thought dump trucks had a limiter on how fast they could run with the bed not completely down?
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No. Most have a rev limiter for when the PTO is engaged.

However, cement trucks do not so that they can churn the concrete while driving.

How this usually happens is that the PTO rev limiter is either broken or disengaged.

The driver lowers the bed, doesn’t turn off his PTO and takes off down the road.

While driving he rests his arm on the dump bed control and the bed goes up and blammo.

Now from the factory, dump trucks and roll off trucks also have a visual and audio alarm to warn them the bed is raised. But they usually get disconnected because they are obnoxiously loud. Ear splitting.

It would make more sense for manufacturers to install a moderate volume hoist up alarm at a lower tone than the one they put on now.
 
This one in Cowpens, SC did so much damage to the bridge they had to close it and they pushed up removing it by 6 months. Luckily I had made my turn in Greenville and was headed north that day. But I had to take some alternate routes that night and for a couple weeks to avoid the mess it created.


www.wyff4.com

Section of I-85 closed after truck hits bridge, SCDOT officials say

A portion of I-85 in Spartanburg County will be closed after a truck hit a bridge causing significant structural damage, according to SCDOT spokesman Robert Kudelka.
www.wyff4.com www.wyff4.com
 
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They hit overhead stuff pretty often.
Bed up alarms are options, frequently broken, disabled, or ignored. Depending on the components of the truck speed limiters can be designed and installed, they are far from 100% reliable. PTO governors are usually pretty reliable, however on trucks used for snow removal and deicing they are usually not set, and old trucks will have none of this stuff, just mirrors which should be enough.
Pretty sure taking off without lowering after dumping is just as common as the bed accidentally getting raised. As they move from mechanical/pneumatic valves to electric over hydraulic the incidences will likely decline along with reliability.
 
The high point landfill has cables across the entrance to catch beds that were up.

I had the electric dept come out to the compost facility and install the same thing on my outbound scale to keep folks from leaving with a raised bed. In my year managing the compost facility in high point, that cable got hit about half a dozen times. Most of those times we could straighten the poles back up and retamp them. One time broke one of the poles and they had to replace it. But it kept the moron from leaving the facility like that and knocking power lines down and ruining a whole neighborhood.
 
Burt Gummer said:
The high point landfill has cables across the entrance to catch beds that were up.

I had the electric dept come out to the compost facility and install the same thing on my outbound scale to keep folks from leaving with a raised bed. In my year managing the compost facility in high point, that cable got hit about half a dozen times. Most of those times we could straighten the poles back up and retamp them. One time broke one of the poles and they had to replace it. But it kept the moron from leaving the facility like that and knocking power lines down and ruining a whole neighborhood.
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Such a simple solution.
Hanes Mill landfill has a bridge at the bottom of the Southbound ramp to US52 they seem to feel serves the same purpose.
Our refuse trucks won't come out of first with the tailgate up because someone realized buying tailgates and cylinders is expensive.
 
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