The Company, in connection with and for the purposes of the works authorised by section 3, may do any of the following things—
(a) make junctions with any existing public road intersected by or continguous to the works, and divert or widen or alter the line or alter the level of any existing public road for the purposes of the works;
(b) provide alternative means of access to premises the existing access to which has been or will be stopped up or interfered with by or as a result of the carrying out of the works;
(c) temporarily or permanently use, strengthen, widen, improve, alter or divert drains, sewers and water and other pipes;
(d) dig or dredge sand and excavate rock from the sea-bed, beaches, the sea shore or the Gros Islet Bay.