Regulatory signs
Mandatory Height Alternative
At non-arch bridges mandatory signs may be used; it is unlawful for an overheight vehicle to pass one of these. They are placed on the bridge and at the side of the road in front of the bridge. Some height restrictions may still show imperial units of measurement only. These signs will be replaced when they reach the end of their life.
Location of mandatory height restriction ahead, with indication of an alternative route.
Warning sign
