If any specified work is abandoned or falls into decay, MDHC may by notice in writing require the undertaker either to repair or to restore the specified work, or any part of it, or to remove the specified work and restore the site of that work to its condition prior to the construction of the specified work, to such an extent and to such limits as MDHC thinks proper acting reasonably.

If a work consisting partly of a specified work and partly of works on or over land above the level of high-water spring tides is abandoned or falls into decay and that part of the works on or over land above the level of high-water spring tides is in such a condition as to interfere or cause reasonable apprehension that it may interfere with navigation on the River or other public rights over the foreshore, MDHC may include that part of the works or any portion in any notice under sub-paragraph (1).

If on the expiration of such reasonable period as may be specified in a notice under sub-paragraph (1) the work specified has not been completed to the satisfaction of MDHC, MDHC may undertake that work and any expenditure reasonably incurred by it in doing so shall be recoverable from the undertaker.