Article 17 Deposits in river

Except so far as may be unavoidable in the construction of the authorised works, or in the exercise of the powers of article 7, the Borough shall not, without the consent of the River Authority and Port Authority (which shall not be unreasonably withheld), deposit in or allow to fall or be washed into the river any gravel, soil or other materials (including in particular any spoil or material excavated whether or not from the river) in the carrying out of the authorised works.