The River Thames (Hungerford Footbridges) Order 1999

10.  All temporary works and equipment erected or placed by the undertaker under the powers of this Order (other than in the course of the construction of the specified works) on, over or under any railway of Railtrack PLC shall, as soon as reasonably practicable, be removed by the undertaker at times to be agreed with, and to the reasonable satisfaction of, the engineer and in such a way as to cause as little damage to railway property, and as little interference with or delay or interruption to the traffic on the railways of Railtrack PLC, as is possible; and if any damage to railway property or such interference, delay or interruption is caused by any such failure to remove any such temporary works and equipment the undertaker shall forthwith make good such damage and pay to Railtrack the reasonable costs and expenses to which Railtrack may be put and reasonable compensation for any loss which Railtrack may sustain by reason of such damage, interference, delay or interruption.