Electrification Between Bristol and Cardiff Complete

Balfour Beatty deployed more than 750 people over the Christmas period to perform the works. The final installation of overhead lines took place at Cardiff Central Station. In total, Balfour Beatty installed more than 4,200 masts and booms, which support 643km of electric cabling associated with the 77km section of track.

To mark the electrification milestone, the first electrified train departed from Cardiff Central to London on 6 January.

source= https://railway-news.com/bristol-cardiff-electrification-complete/