There's a railway trestle in Durham, North Carolina, with an 11' 8" clearance to the road beneath. So many trucks and goods vehicles have hit the trestle that someone's set up an entire Web site, as well as a dedicated YouTube channel, to do nothing but document the ongoing series of accidents (recorded on a specially erected 'bridgecam'). The railway company has had to erect a crash beam on either side of the trestle itself, so that vehicles running into the bridge don't knock the railway track itself out of true.
Here's just one video from the chronicles, documenting 13 collisions with the bridge that took place in the space of - you guessed it! - 13 months.
There are many more videos of accidents at this bridge on the YouTube channel. Entertaining viewing for all except motor vehicle insurers!