Paragraph 1

The Secretary of State may, for the purposes of or in connection with the principal works, construct, provide and maintain—

(a)

all such roads, approaches, bridges, stairs, basins, slipways, ramps, passages, means of ingress or egress, shafts, stages, buildings, walls, fences, pumping works and temporary fabrication facilities;

(b)

all such embankments, aprons, abutments, retaining walls, wing walls, drains and culverts;

(c)

all such temporary piles, fenders, booms, moorings, dolphins, pontoons, caissons, cofferdams, piers and wharves; and

(d)

all such other structures, plant and works;

as appear to him to be necessary or convenient.