This double track line was opened largely for the benefit of Bairds. The line was double track already from Bridgend Junction to Garnqueen South Junction.
These locations are along the line.
The line from Garnqueen divided into three here. Going to the north west, the original M&K route, two single track lines ran in parallel, giving the appearance of a double track line. The western track ran to Garngaber High Junction, the eastern to Woodley Junction. A newer route to Waterside Junction ran to the north. This later route was a conventional double track.
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This junction opened in 1895 with a North British Railway built connection from Waterside (on the Edinburgh and Glasgow Railway) south to Bridgend Junction (on the Monkland and Kirkintilloch Railway. It allowed westbound trains on E&G to reach the blast furnaces around Coatbridge without having to run round and reverse at Garngaber High Junction.
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