11' 8" Truck-eating bridge in Durham, N.C.

[DIYSwede]

"Oversize Load" signs are only there to warn other drivers...
This one managed to squeeze not only a bed, but an entire dump truck under a bridge:

[Frank S]

"Oversize Load" signs are only there to warn other drivers...
This one managed to squeeze not only a bed, but an entire dump truck under a bridge:

While a 773 is normally a dump truck the one featured in the video is configured with a water tank making it a water tanker but that is just semantics.
Normally a bed on the larger trucks would be removed and shipped separately on the larger equipment for weight and height considerations shipping 2 loads is sometimes cheaper than shipping as a whole and there is the matter of reasonable reduction of size. On the Interstate system most states now allow 14' 1" as max legal height instead of the 13'6" High pole pilot vehicles are required over 15' just about everywhere now some states are requiring a high pole over 14'6" .
So several things went wrong here. First the driver probably fudged on the overall height to get less expensive over dimensional permits, the permit agency was not due diligent in their routing the road surface may have been topped reducing the clearance, the pilot if one had been hired failed to properly check the overhead height in 2 or 3 places as required when obstructions may exist. But most of all the driver ignored the 6 side observance rule when driving a truck especially #5&6 ground and sky Long multi axle rigs can gain several inches in height if the road surface slopes down and up under an over pass due to its length.
I wonder if he had one of these on board to check his height with. my guy who pulls the trailers he and I own together has one and it has proved very valuable more than once
https://www.amazon.com/Business-BA-P...-6&tag=mh0b-20