 In 1853 a Parliamentary Bill had been presented, and as it was unopposed, its passage easily led to the Royal Assent being granted on 10 July 1854, for a line from Llandovery to Llandilo.Capital was £55,000 and mixed gauge track was authorised, as sale to the Great Western Railway or its allies was still contemplated.It opened its line to passengers on 1 April 1858, but goods trains had been running since either 17 February or 1 March.