Subject to the provisions of this section, every highway maintainable at the public expense, together with the materials and scrapings of it, vests in the authority who are for the time being the highway authority for the highway.
Subsection (1) above does not apply—
Where a scheme submitted to the Minister jointly by two or more ... highway authorities under section 16 above determines which of those authorities are to be the special road authority for the special road or any part of it ("the designated authority") and the designated authority are not the highway authority for the road or that part of it, the road or that part of it vests in the designated authority.
Where—
the part of the highway in question does not by virtue of subsection (1) above vest in that highway authority.
Notwithstanding anything in subsection (1) above, any such material as is referred to in that subsection which is removed from a highway by a non-metropolitan district council in exercise of their powers under section 42, 50 or 230(7) above vests in the district council and not in the highway authority.