11. The Company must bear the reasonable costs of the carrying out, by a qualified surveyor or engineer (“the surveyor”) to be appointed by the Trust and Company, of surveys of so much of the canal as will or may be affected by the specified works—
(a)before commencement of the initial construction of any part of the specified works; and
(b)following completion of the specified works,
and if the Trust and the Company do not agree on the appointment of the surveyor under this paragraph an arbitrator is to be appointed on the application of either party (after giving notice in writing to the other) by the President of the Institution of Civil Engineers.