17.—(1) DLRL shall, upon completion of any part of any permanent specified work, remove as soon as practicable any temporary works constructed and materials for temporary works placed in, on, over or under the Dock in connection with that part of the specified work.
(2) All temporary works shall be removed to the reasonable satisfaction of the engineer, and in the construction, maintenance and removal of such works DLRL shall not cause unavoidable detriment.