• Technical challenges River Humber pipeline replacement

Technical challenges River Humber pipeline replacement

1 May 2018

Joint venture partners Skanska, PORR and A.Hak construct a 5.4 km long tunnel under the river Humber. An important project for their client National Grid. Annually, some 20 per cent of the national gas volume of the United Kingdom will pass through the tunnel under the river estuary at the English East Coast.

An article in Ground Engineering (English) talks extensively about the technical challenges of the project. 'There are only five similar projects worldwide and this is considered to be the longest', says Phil Croft, senior project manager at National Grid.

The team tackles the challenges with the aid of tunnel boring machine (TBM) 'Mary'. The TBM is named after Mary Ferguson, the first woman to become a fellow of the Institution of Civil Engineers in 1957. 

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