Tideway tunnelling machine passes safely beneath Tower Bridge - New Civil Engineer
... The 25km ‘super sewer’ - which will clean up the tens of millions of tonnes of sewage that currently pollute the River Thames - has had its outer tunnel shell built underneath west and central London and will soon start its final phase of digging in the east. Two other TBMs completed the first stage of tunnelling from Battersea to Acton. ...
... “Our engineering and construction teams, working closely with the bridge’s owner, the City of London Corporation, have done a superb job – and we’re now closer than ever to a cleaner River Thames.” ...
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