(1)  Subject to this Act, the Authority has the following functions under this Act:

(a) to take action to reduce the likelihood, severity and duration of flooding in the flood-prone area, including (but not limited to including), if it thinks fit, dredging for such purposes;

(b) to provide advice to the Council as to whether levees, additional to any levee constructed before the commencement of this Act, may be required to reduce the likelihood, severity or duration of flooding in the flood-prone area;

(c) to take all reasonable steps to ensure that any levees constructed (whether before or after the commencement of this Act) for the purpose of preventing flooding in the flood-prone area –

(i) are maintained; and

(ii) are redesigned, or augmented, if it is desirable to do so in order to prevent, or to reduce the likelihood, severity or duration of, flooding in the flood-prone area;

(d) to provide to the Council information to assist the Council to determine the advice that ought to be given by the Council to members of the public about the risk of flooding in the flood-prone area;

(e) any other function specified in this Act.

(2)  The Authority has the power to do all things necessary or convenient to be done in connection with the performance of its functions under this Act.

(3)  Nothing in subsection (1) or (2) is to be taken to limit the functions or powers of the Authority under the Local Government Act 1993 or as set out in the Authority Rules.

(4)  Section 36 of the Local Government Act 1993 does not prevent the Authority –

(a) performing its functions, or exercising its powers, under this Act or under the Local Government Act 1993 ; or

(b) performing its functions, or exercising its powers, as set out in the Authority Rules –

outside the municipal area of the Council.