 The dual carriageway cost £65 million to construct, and is two-lane dual carriageway for the majority of its length, with sections of three-lane.The M54 spur connects the M6 motorway near Essington, Staffordshire with the A5 trunk road at Wellington, Shropshire.The motorway forms part of the strategic route to North Wales, roughly following the path of the Roman Watling Street and the A5 north-westwards, towards the port of Holyhead.