Electrification
In 1938 the LMS introduced new lightweight multiple units, three car trains powered by four 135 horsepower (101 kW) motors and weighing 77 long tons (78 t). Later, under British Rail, these were classified Class 503. The electric trains running to both New Brighton and West Kirby and through the Mersey Railway Tunnel to Liverpool, and now form part of Merseyrail's Wirral Line.
The branch to Seacombe (which was never electrified) then became used only by the LNER (ex-Great Central) trains from Wrexham, until these were changed over to diesel trains in 1960 when they were diverted to New Brighton, and the Seacombe branch was closed to passengers, and after the coal depot at Seacombe was closed in 1963 the branch was closed and the track lifted. Some years later its route was used for the approach road to the Kingsway Tunnel that opened in 1971.
Read more about this topic: Wirral Railway