asked Her Majesty's Government:

Further to the Written Answer by Lord Bassam of Brighton on 28 February (WA 131–2), whether W10 gauge will be created under any newly electrified sections of the Great Western Main Line to be used by Crossrail trains. [HL2776]

The only clearance work needed in addition to Crossrail works to achieve W10 gauge throughout the newly electrified sections of the Great Western Main Line would be in relation to a small number of existing arched bridges.

Whether to undertake additional works to these bridges for non-Crossrail purposes is for Network Rail to review as usual for any gauge clearance investment.