Any operations for the construction of any tidal work approved in accordance with this Order shall, once commenced, be carried out by the Harbour Authority with all reasonable dispatch and to the reasonable satisfaction of the PLA so that river traffic, the flow or regime of the river and the exercise of the PLA’s functions shall not suffer more interference than is reasonably practicable, and the PLA shall be entitled by its officer at all reasonable times, on giving such notice as may be reasonable in the circumstances, to inspect and survey such operations.