Built on the site of the original built Bristol and Exeter Railway shed, it was rebuilt under the Loans and Guarantees Act in 1934 by the Great Western Railway, allocated shed code 82A. The site scale meant that although the depot was to be the major repair and maintenance point for the Bristol divisional area, the shed was restricted to a steel-frame straight 8-road with northernlight roof pattern form, as opposed to the GWR standard-pattern turntable model like Old Oak Common. Secondly, as the depot was so close to Bristol Temple Meads, it was required to keep the depot in full operation while construction took place. The twin-ramp coal stage was of standard GWR pattern but used concrete beams and brick piers to restrict ramp width. The divisional repair shop was located to the far north of the site, close to the River Avon. There were two standard-pattern over-girder turntables on site, one to the rear of the shed, and one to the Northeast of the repair shop. While Bath Road handled passenger traffic locomotives, St Philip's Marsh depot on the eastern throat handled freight types. Post nationalisation, under British Railways both Bath Road and St Philip's Marsh gained additional allocation from the closure of the localLondon Midland and Scottish Railway sheds. By 1950 it had an allocation of 93 locomotives, half of them classic GWR 4-6-0s, most of the others 2-6-2Ts for running local and regional passenger traffic. However, as it was located on a main national route, with an equally large-scale shed on the opposite throat of the station, Bath Road was one of the first sheds to be closed to steam locomotives from September 1960. Rebuilt as a diesel depot, it retained one of the turntables. The depot ceased all operation on 28 September 1995, when its last operator Great Western Trains transferred all operations to St Philip's Marsh T&RSMD.
Modern redevelopment
In 2011, the railway-level depot site was named as part of the Bristol Temple Quarter Enterprise Zone, where reduced taxes and planning controls would encourage development of new businesses. It was hoped that around 40 businesses would provide employment for 4,000 people within five years. The site was also considered to become the location for the Bristol Arena, a new 12,000 seater entertainment venue, with construction expected to start in late 2016 and set to open in 2018. Development of the Arena was repeatedly delayed and at the end of 2018, the idea of building it here were scrapped and the future for the site remains unclear.
