Sea Mills railway station is on the Severn Beach Line and serves the district of Sea Mills and nearby Westbury on Trym in Bristol, England. It is from , situated at the confluence of the River Avon and River Trym and near the A4 Bristol Portway. Its three letter station code is SML. The station has a single platform which serves trains in both directions. it is managed by Great Western Railway, which is the third franchise to be responsible for the station since privatisation in 1997. They provide all train services at the station, mainly a train every 30 minutes in each direction. The station was opened in 1865 by the Bristol Port Railway and Pier, and had a single platform. It later became part of the Clifton Extension Railway, and had a second platform built. The station was expanded over the years, and at one point had four porters staffing it. However the Severn Beach Line declined over the latter half of the twentieth century and by the 1970s the station had no staff and only one platform. Services however have increased since 2000 to a train every 30 minutes in each direction. Description The station is located in the Sea Mills area of Bristol, and additionally serves residents of Stoke Bishop. The surrounding area is mostly residential, with allotments to the west and a small football ground to the north. The station is less than from the River Avon to the west, and directly south of a small harbour at the mouth of the River Trym, which the railway crosses on a bridge. The station has road access to the east from Sea Mills Lane, which runs parallel to the Trym, and can also be accessed via a footpath along the Avon to the west. The A4 Bristol Portway is less than east of the station, and crosses the railway south of the station. The station is on the Severn Beach Line from to , from Temple Meads and from Severn Beach. It is the sixth station from Temple Meads. The next station towards Temple Meads is ; the next towards Severn Beach is . The station is on an alignment of approximately 160 degrees, curving towards the south. There is a single -long platform which serves trains in both directions, situated on the east side of the track. The station's western platform was abandoned in 1970