The Boston Barrier Order 2017

10.  Without affecting the other provisions of this Schedule, the Agency must be responsible for, and make good to the Harbour Authority, all costs which may reasonably be incurred by or occasioned to the Harbour Authority by reason of or arising from or in connection with—

(a) the carrying out of surveys, inspections, tests and sampling within and of the river (including the bed and banks of the river) where the Harbour Authority has reasonable cause to believe that the construction of any of the tidal works or the exercise of the powers conferred by article 6 (power to dredge etc.) of this Order is causing or has caused any such accumulation or erosion;

(b) the surveillance, co-ordination and regulation of traffic within the Port of Boston which becomes reasonably necessary by reason of the exercise or the prospective exercise by the Agency of its powers to close the river or any part of the river to navigation under article 17 (temporary closing of the river in connection with works) of this Order.