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Work to begin next week on £247m M25 upgrade

Preparatory work for an upgrade to the M25 between Kent and Surrey is to begin next Monday.

Balfour Beatty, Skanska, Atkins and Egis are all involved in the project under the Connect Plus joint venture, with the scheme estimated to cost as much as £247.4m.

The work is being undertaken to add capacity between junctions five and seven, making the hard shoulder available as an extra lane, in what is known as a ‘managed motorway’ – a system currently in place in the Midlands.

Preparation work will be undertaken overnight, clearing vegetation and strengthening the hard shoulder and sections of the verge. Drainage will also be upgraded, will recovery stations and cameras will be prepared.

Highways Agency project manager John Martin said: “As well as installing important equipment that will be used during the scheme, we are preparing key parts of the road infrastructure for the upgrade, including checking and refurbishing more than 1,000 drainage gulleys and chambers under the hard shoulder to minimise the risk of unplanned disruption once the roadworks get underway.”

Main construction work is expected to begin next spring.

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