 This had not been submitted for inspection earlier, and Captain Tyler looked at it on 5 June 1866, but he declined to sanction opening of it at first.He later agreed to the use of the curve on 31 July, and it was opened on 1 September 1866.Completion of the section between Adwick junction and Haggs Wood junction had been delayed awaiting the finalisation of the South Yorkshire Railway's new line; in addition it was doubled on GNR insistence.