6Construction and maintenance of new or altered roads
(1)Each of Works Nos. 1C, 1D, 1G, 1H, 1J, 1K, 1L, 2B, 2C, 2D, 3E, 5A, 5B, 5D, 5E, 5F, 5G, 7A, 7B, 8A, 10B, 10D, 10E, 10F, 10G, 10H, 10K and 10L shall be completed to the reasonable satisfaction of the roads authority and shall, unless otherwise agreed, be maintained—
(a)by and at the expense of the authorised undertaker for a period of 12 months from its completion; and
(b)at the expiry of that period by and at the expense of the roads authority.
(2)Where a road is altered or diverted under this Act, the altered or diverted part of the road shall when completed to the reasonable satisfaction of the roads authority, unless otherwise agreed, be maintained—
(a)by and at the expense of the authorised undertaker for a period of 12 months from its completion; and
(b)at the expiry of that period by and at the expense of the roads authority.