A Bridge Too...Low?

This railroad trestle in Durham, N.C. warns motorists about the clearance (not quite 12 feet) but still tall vehicles try to pass under it--and with very regular top-shaved results.   This video from web-cams records the damage to 61 vehicles.  A cult has grown up around it with a site for constant monitoring! There's even a new one not in video, from March 5.