The principal use of the Thames Haven Branch (
Engineer's Line Reference THN) is for freight. The branch formerly served the
Shell Haven refinery and the
Coryton oil refinery transporting petroleum products from the refineries in rail tank wagons. Liquefied
ammonia was also transported from the Shell Haven site, and to the Fisons Ltd works at
Stanford-le-Hope for the manufacture of
nitric acid and
ammonium nitrate fertiliser (since closed). The export of ammonia from Shell Haven ceased in 1980, Shell Haven refinery closed in 1999, and Coryton refinery closed in 2012. The branch formerly had a siding, at from the datum, used by British Dredging, this was out of use by 1997. The branch is connected to the national rail system at Thames Haven Junction between East Tilbury and Stanford-le-Hope stations from a datum at London Fenchurch Street. The western end of the branch is a two track line designated Down Thames Haven and Up Thames Haven running nearly 2 miles to Port Junction located at from the datum. The boundary between Network Rail infrastructure and DP World is at the former British Dredging siding at . From Port Junction the branch splits into 3 lines: • the most northerly line designated the Thames Haven Single runs to terminus junction at where the line connects to the former Coryton and
Corringham lines. From terminus junction the line branches north and east to the currently out of use Thames Oilport (formerly Coryton refinery), and directly to the east to the "not in regular use" Thames Haven Yard • the next line to the south is designated Port Arrivals • the most southerly line is Port Departures, both these lines connect to the currently six loading sidings of the
London Gateway port. Railway operations at the port from the Network Rail boundary are controlled by the London Gateway Rail Control Centre located at the eastern end of the sidings. The branch is not electrified and is only accessible by diesel locomotives, it has a
route availability of 8, that is limited to an axle load of ≤22.8 tonne. There are currently (2017) nine freight paths to, and nine paths available from, London Gateway every weekday. ==References==