The powers for construction were renewed in 1846, though in 1853, the scheme to Romford was abandoned in favour of a single, four-mile branch, which was to run from a junction with Tilbury-Pitsea line to a new port to be called Thames Haven.
It was initially intended to enter into an agreement with the LT&SR to run passenger trains onto the CLR, either by changing at a new platform or reversing at Thames Haven station.
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).
[10] The branch is connected to the national rail system at Thames Haven Junction between East Tilbury and Stanford-le-Hope stations 26 miles 41 chains (42.67 km) from a datum at London Fenchurch Street.
The boundary between Network Rail infrastructure and DP World is at the former British Dredging siding at 28 miles 9 chains (45.24 km).