10.—(1) From the date on which the street authority confirms that the alteration or diversion of a street or part thereof under this Order has been completed to its reasonable satisfaction, that street or part thereof shall be maintained—
(a)for a period of 24 months, by the undertaker;
(b)after a period of 24 months, by the street authority.
(2) Paragraph (1) shall not apply—
(a)where the undertaker and the street authority enter into an agreement as to the maintenance of the street under article 12;
(b)to the maintenance of the structure of any bridge carrying a street over the Canal; or
(c)to the maintenance of the structure of any aqueduct over a street.
(3) The undertaker shall not be held to be a street authority for the purposes of Part III of the 1991 Act by reason of a duty under this article to maintain a street.