The Hampton Kempton Waterworks Railway is a 2 ft (610 mm) gauge narrow gauge steam railway that opened in 2013, giving rides to paying visitors on a restored steam locomotive, with two back-up diesel locomotives.

[1] The original 2 ft (610 mm) gauge railway, known as the Metropolitan Water Board Railway, was built between 1914 and 1916 to carry coal from a wharf on the River Thames to the furnaces of the regional water supply's pumping stations on the Hanworth/Hampton border.

The chief executive of Thames Water attended the opening of the railway in 2013 (and hereditary building and civil engineering magnate Sir William McAlpine).

Two diesel locomotives have added from a mine in Indonesia; they are in working order, but subject to some further restoration, so all trains are currently steam-hauled.

The planned second phase of the railway involves the construction of a further three miles of track, leading from the existing loop towards the Upper Sunbury Road, Hampton.