Deepdale Eng. Co. Ltd.

Deepdale “Supertube” Leaves for London


Deepdale Engineering Company Ltd. have completed and despatched a mammoth section of monopile tube to form a key part of a major rail construction project in Central London.

The 40mm thick carbon steel tube, which is a staggering 20 metres long and has an outside diameter of 2200mm was cold rolled and automatic submerged arc welded in the firm's specialist engineering and fabrications unit in Dudley, West Midlands.


Ultimate test - the 46 tonne pile is lifted into the vertical position

Weighing in at 46 tonnes, the finished fabrication was supplied complete with internal stiffening rings, lifting frame assembly and wing brackets. The giant tube was loaded onto a long trailer and taken to a local testing facility where it was subjected to a number of rigorous load tests which including being lifted into the vertical position using specialist crane equipment.

Having been successfully trialled for strength and integrity the monopile was transported to the capital where it will form the base of a temporary crane structure.

The order is one of many civil engineering contracts carried out by Deepdale Engineering for major clients in the UK and throughout the world.


The 20 metre monopile tube begins it's journey.
Two cranes are used to test the integrity of the fabrication.
The tube is load-tested using weights.