2Not later than the date on which the said notice is published as aforesaid, the Minister or the local highway authority, as the case may be, shall serve a copy thereof (together with a copy of the draft scheme or of the scheme, as the case may be, and of any relevant map or plan)—
(a)on the council of every county, county borough and county district or, in Scotland, on the council of every county, burgh and district, in which any part of the route of the special road is situated ; and
(b)where the scheme provides for the construction of a bridge over or tunnel under any navigable waters, on every navigation authority, catchment board or river board concerned with or having jurisdiction over the waters affected or the area comprising those waters.