questionText: To ask the Secretary of State for Transport, what the initial cost estimate for the Great Western Rail Electrification Project was; and what was the (a) final cost and (b) total length of (i) rail electrified and (ii) rail left unelectrified (A) between C
answerText: The 2013 cost estimate for the electrification of the 121 miles of the Great Western Main Line between Heathrow Airport Junction and Cardiff was £1.7 billion. The work was completed in 2020 at a cost of £2.8 billion. The scope of the Great Western Electri...
heading: Great Western Railway: Electrification