Baird & Co. provided rail connections to their local pits at an early date but for many years much of their coal was transported to market by canal boat. During the 1860s the canal company permitted Baird & Co. to place a railway swing bridge over the canal, a short distance to the west of Twechar road bridge, for the purpose of forming a connection between collieries on either side of the canal. As part of the deal the coal company agreed to transport a proportion of its coal by canal although this requirement lapsed early in the twentieth century. However, the swing bridge continued in use until the mid-1960s, its hand-winding apparatus having been made redundant on 1 January 1963, when the canal closed.