right i know this a bit of a silly topic but when driving along the motorway and say your behind a HGV with a high trailer do you ever think "**** that was close" when they go under bridges??? cos ive noticed that there is such a small gap between the underside of the bridge and the top of the trailer? same with car transporters they seen ever so close when they go under bridges, has there ever been an accident by a lorry striking a bridge cos the trailer was that little bit to high? ive never heard of one?? something happend on an A road near mine about a year ago, a lorry which had a portacabin on the back had a hiab crane to lift it on,but instead of packing the crane away behind the cab he just left the BOOM resting across the top of the portacabin, went under a bridge and struck it! the boom ended up snapping off and flying across the road! no one was hurt thankfully! but just wondered if anyone has noticed how close the gaps are under bridges???