In addition to those powers and duties described in Section 604, the general manager of the Harbor Department shall have the power and duty to:
(a) enforce all orders, rules and regulations adopted by the board relating to regulation, operation or control of the Harbor District;
(b) supervise and manage the design, construction, maintenance and operation of all work or improvements authorized or ordered by the board;
(c) designate and assign berths or landings for the use of vessels at any wharf or like facility at the established rates or charges, subject to the rules and regulations of the department;
(d) designate and assign space in any warehouse, elevator or similar facility at the established rates or charges and subject to the rules and regulations of the department;
(e) subject to approval of the board, grant revocable permits to use the lands and waters, or interests therein in the Harbor District, or any structure or appurtenance thereto, for any and all purposes which shall not interfere with commerce or navigation, and are not inconsistent with any trusts upon which the land may be held by the City;
(f) revoke any assignment made under subsection (c), (d), or (e) of this section in accordance with Section 654(c); and
(g) carry out all powers and duties of the department delegated by the board.