37. —(1) Subject to sub-paragraph (2), any specified work, and all protective works required by the Agency under paragraph 35, must be constructed— 

(a) without unreasonable delay in accordance with the plans approved under this Part of this Schedule; and 

(b) to the reasonable satisfaction of the Agency, 

and the Agency is entitled by its officer to watch and inspect the construction of such works. 

(2) The undertaker must give to the Agency not less than 14 days’ notice in writing of its intention to commence construction of any specified work and notice in writing of its completion not later than 7 days after the date on which it is completed. 

(3) If the Agency reasonably requires, the undertaker must construct all or part of the protective works so that they are in place prior to the construction of any specified work. 

(4) If any part of a specified work or any protective work required by the Agency is constructed otherwise than in accordance with the requirements of this Part of this Schedule, the Agency may by notice in writing require the undertaker at the undertaker’s own expense to comply with the requirements of this Part of this Schedule or (if the undertaker so elects and the Agency in writing consents, such consent not to be unreasonably withheld or delayed) to remove, alter or pull down the work and, where removal is required, to restore the site to its former condition to such extent and within such limits as the Agency reasonably requires. 

(5) Subject to sub-paragraph (6) and paragraph 41, if, within a reasonable period, being not less than 28 days beginning with the date when a notice under sub-paragraph (4) is served upon the undertaker, the undertaker has failed to begin taking steps to comply with the requirements of the notice and has not subsequently made reasonably expeditious progress towards their implementation, the Agency may execute the works specified in the notice and any expenditure reasonably incurred by the Agency in so doing is recoverable from the undertaker. 

(6) In the event of any dispute as to whether sub-paragraph (4) is properly applicable to any work in respect of which notice has been served under that sub-paragraph, or as to the reasonableness of any requirement of such a notice, the Agency must not, except in the case of an emergency, exercise the powers conferred by sub-paragraph (5) until the dispute has been finally determined in accordance with paragraph 43. 

38. —(1) Subject to sub–paragraph (6), the undertaker must from the commencement of the construction of the specified works maintain in good repair and condition and free from obstruction any drainage work which is situated within the limits of deviation and on land held by the undertaker for the purposes of or in connection with the specified works, whether or not the drainage work is constructed under the powers conferred by this Order or is already in existence. 

(2) If any such drainage work which the undertaker is liable to maintain is not maintained to the reasonable satisfaction of the Agency, the Agency may by notice in writing require the undertaker to repair and restore the work, or any part of such work, or (if the undertaker so elects and the Agency in writing consents, such consent not to be unreasonably withheld or delayed), to remove the work and restore the site to its former condition, to such extent and within such limits as the Agency reasonably requires. 

(3) Subject to sub–paragraph (5) and paragraph 41, if, within a reasonable period being not less than 28 days beginning with the date on which a notice in respect of any drainage work is served under sub-paragraph (2) is received by the undertaker, the undertaker has failed to begin taking steps to comply with the requirements of the notice and has not subsequently made reasonably expeditious progress towards their implementation, the Agency may do what is necessary for such compliance and any expenditure reasonably incurred by the Agency in so doing is recoverable from the undertaker. 

(4) If there is any failure by the undertaker to obtain a necessary consent or comply with conditions imposed by the Agency in accordance with this Part of this Schedule the Agency may serve written notice requiring the undertaker to cease all or part of the specified works and the undertaker must upon receipt of the notice cease the specified works or part thereof until it has obtained the necessary consent or complied with the condition unless the cessation of the specified works or part thereof would cause greater damage than compliance with the written notice. 

