As the Dartmouth line was then part of the SDR , it became a part of the GWR .
On 1 February 1876 the South Devon Railway amalgamated with the Great Western Railway and the Bristol and Exeter Railway , forming the new Great Western Railway .
As the Dartmouth line was then part of the SDR , South Devon Railway became a part of the Great Western Railway .
On 1 February 1876 the South Devon Railway amalgamated with the Great Western Railway and the Bristol and Exeter Railway , forming the new Great Western Railway .