We have a similar bridge in my part of the country at Ely which has the reputation of being( The most bashed bridge in the uk) It has A 9 foot clearance and is bashed on a regular basis mainly by camper vans and small box vans on rental, despite being fitted with red flashing lights and warning signs.There is a level crossing next to it which many drivers try to avoid using to save time!

Barry (78 4/4)