Question to the Department for Transport:

To ask Her Majesty's Government what is the latest design specification and visual impact of the catenary and masts on the HS2 Colne Valley viaduct; and with which railway specification they will comply.

The design of the overhead catenary masts will be integrated with civil structure to provide a solution that is aligned with the architectural strategy for the Colne Valley viaduct.

The Overhead Catenary System (OCS), including the masts, is designed in accordance with the requirements defined in the Technical Specifications for Interoperability (TSI) relating to the ‘energy’ subsystem and the associated standards.