10-26-2012, 04:50 PM
deckeda wrote:
There's one in TN, can't remember where, off of I-24 that has a warning bar hung by chains and a sign that says, "IF YOU HIT THIS BAR YOU WILL HIT THAT BRIDGE."
Seems easier to build something like that than a bumper bar that takes the brunt of the hit.
Speedy wrote:
That bridge is very, very well marked with lights flashing whenever a high truck approaches. Not all bridges even have the accurate height, sometimes being more than a half foot lower than marked. Many bridges have only two or three inches of clearance beyond the standard 13' 6" so even a pothole can bounce you into it. Speaking from experience.
I have to wonder though, when was the last time they measured it? The pavement isn't flat and as a pretty good grade to it. I wonder if it's 11' 8" in the middle? I also wonder if repaving it has brought the road surface up higher so it's no longer 11' 8".