10.—(1) Any specified or protective works shall, when commenced, be constructed—
(a)with all reasonable dispatch in accordance with the plans approved or deemed to have been approved or settled as aforesaid and with any requirements made under paragraph 6(3) and paragraph 7;
(b)under the supervision (if given) and to the reasonable satisfaction of the engineer;
(c)in such manner as to cause as little detriment as is reasonably practicable;
(d)in such manner as to cause as little inconvenience as is reasonably practicable to CRT, its officers and agents and all other persons lawfully using the waterways, except to the extent that temporary obstruction has otherwise been agreed by CRT.
(2) Nothing in this Order shall authorise the undertaker to make or maintain any permanent works in or over the waterway so as to impede or prevent (whether by reducing the width of the waterway or otherwise) the passage of any vessel which is of a kind (as to its dimensions) for which CRT is required by section 105(1)(b) and (2) of the Transport Act 1968 to maintain the waterway.
(3) Following the completion of the construction of the specified works the undertaker shall restore the waterway to a condition no less satisfactory than its condition immediately prior to the commencement of those works unless otherwise agreed between the undertaker and CRT.