That trestle looks pretty old, Tractor Trailer rigs used to be shorter than they are now. Having worked with many a trucker in the moving business, I would never make that assumption.
I think that trestle is 12' 6". Plus there's a dip in the road under the trestle and a sudden uphill in the direction that truck was going which raises the cab-end before the trailer is out from under. It's like a truck trap.
Actually, I have it on good authority that James Kirk was born on a shuttlecraft a short distance from Klingon space.