The section from Toronto to Woodstock remains in use as the CPR mainline through Ontario, forming portions of what is now the Galt and Windsor Subdivisions.

[5] Later Acts authorized further branches from the Forks of the Credit to Salem,[6] and from Galt to St. Thomas,[7] where it would connect with the Canada Southern Railway.

[26][27] The Parliament of Canada subsequently passed an Act on the matter in 1880[28] (which attracted considerable controversy during its debate as it concerned a provincially incorporated railway).

It runs midway between the Grand Trunk and Great Western lines, and is as necessary to the welfare of Toronto as would be a sidewalk for passengers down the middle of Yonge Street with the pavement on each side.

[33]Such concerns continued to be expressed after its opening, as existing competition between the GTR and the GWR had already depressed freight rates on that corridor.

[9] As early as 1874, it received approval to settle certain debts through exchange into shares,[34] and in 1876, it was requesting that the provincial construction subsidy of $2000/mile[35] be increased to $3500/mile.

[47] In 1888, William Van Horne admitted at a meeting that the CPR had been dealing with problems arising from the original construction of the track, declaring, "It takes all our time to try and straighten out the line of the Credit Valley Railway, laid down and built by Mr. Laidlaw, because it is so crooked.