We have a project where if the MGS Long-span is installed as crash tested will reduce the shoulder down to 1'.
We have room to install a longer MGS system (box is only a 6' 4" wide).
Could we install a longer span box culvert and have the face of rail closer to the head wall?
We would not have to worry about post rotation issues.
The only potential issue I do see is that we may allow more of the vehicle to extend over the box culvert during a crash. Extending how much the vehicle is over the culvert may increase the likelihood of the vehicle interacting with the wing walls.
The head wall does not extend above the ground line.
I have some photos of the culvert in question. They look pretty bad, but I understand that the culvert had some repair work done on it after it got hit.
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