West Dunbartonshire Council is the Highway Authority for all of the council roads in the western portion of the historic County of Dunbartonshire, except for the area of Helensburgh and its environs, which are maintained by Argyll and Bute Council. Transport Scotland maintain the A82 and A898 within the council area.As of 2016, Government Statistics say that the council is responsible for 27.7 miles of A roads; 5.5 miles of B roads and 216.1 miles of other roads. There is an additional 12.1 miles of Trunk Roads within the council area, which are maintained by Transport Scotland.