Key locations and Engineering

Key locations

The railway's headquarters were established at Paddington station. Its locomotives and rolling stock were built and maintained at Swindon railway works but a number of other workshops were acquired as it amalgamated with other railways, notably Stafford Road works at Wolverhampton, but also others at locations such as Newton Abbot and Caerphilly. Workshops for signalling equipment were located adjacent to Reading railway station and. In later years, a concrete works was established at Taunton where items ranging from track components to bridges were cast.


Engineering

The Great Western Main Line was designed to be much more straight and level than was usual at the time, and so a number of important structures feature along its length. Working westwards from Paddington, the line crosses the valley of the River Brent on Wharncliffe Viaduct and the River Thames on Maidenhead Railway Bridge, which at the time was the largest span for a brick arch bridge. It then runs through Sonning Cutting before reaching Reading. It also crosses the Thames two more times, on Gatehampton and Moulsford bridges. Between Chippenham and Bath it then passes through Box Tunnel, the longest railway tunnel driven by that time. Several years later the railway opened the even longer Severn Tunnel to carry a new line between England and Wales beneath the River Severn.