8.Section 1(1) authorises the nominated undertaker to construct and maintain the works necessary for Crossrail. The principal works necessary – the so called “scheduled works” – are listed in Schedule 1 and are also shown on the plans and sections deposited with the Crossrail Bill on its introduction.
9.Section 1(2) requires, subject to section 1(3), the scheduled works to be constructed in the lines or situations, and on the levels, shown on the deposited plans and sections. The plans and sections therefore give an indication of where the works will be constructed. Also, if in the case of a station, depot or shaft, the deposited sections show an upper limit, the relevant works must be constructed within that limit.
10.Section 1(3) allows the nominated undertaker to construct or maintain a scheduled work in a different lateral position from that shown on the plans, as long as it is within the area shown for the work on the plans (the “limit of deviation” for the work). This flexibility, and the flexibility provided by sections 1(4) and 1(5), is customary in Acts for railway projects and reflects the fact that some movement may be necessary, for example to avoid hidden obstacles that are only discovered once construction is underway.
11.Section 1(4) allows the nominated undertaker to deviate in respect of works to any extent downwards.
12.Section 1(5) allows the nominated undertaker to deviate in respect of works upwards to an extent of three metres, save in respect of the works identified in section 1(5)(a) where the upward limit of deviation is six metres.
13.However, section 1(6) provides that where an upper limit for a station, depot or shaft is shown on the deposited sections, the power to deviate is subject to that upper limit.