The construction of the authorised works shall, when commenced, be carried out with all reasonable dispatch in accordance with the plans approved or deemed to be approved or settled as mentioned in paragraph 3 above and under the supervision (if given), and to the reasonable satisfaction, of the engineer of the Railways Board, and in such manner as to cause as little damage to railway property as may be and as little interference as may be with the conduct of traffic on the railways of the Railways Board.

If any damage to railway property or any such interference shall be caused by the carrying out of the authorised works, the Secretary of State shall make good such damage and pay to the Railways Board reasonable expenses which they may incur and compensation for any loss which they may sustain by reason of any such damage or interference.

Nothing in this paragraph shall impose any liability of the Secretary of State with respect to any damage, costs, expenses or loss attributable to the act, neglect or default of the Railways Board or their servants, contractors or agents.