3.—(1) The area within which the Company shall exercise jurisdiction as harbour authority, within the meaning of section 57 of the Harbours Act 1964, for the Port shall be the area described in paragraph (3), and shown edged in red on the deposited map, together with so much of the port estate as is not situated within that area.
(2) In the event of any discrepancy between the description of the area of the Port referred to in paragraph (1), and set out in paragraph (3), and the boundaries shown on the deposited map, the deposited map shall prevail over the said description.
(3) The area referred to in paragraph (1) is the existing Port of Weston in the Borough of Halton situated where the Manchester Ship Canal meets the navigation.