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The A3 trunk road is a major highway between London and Portsmouth on England’s south coast with an average of 28,400 vehicles passing through the road each day. To ease congestion and enhance road safety on this busy route, the Highways Agency implemented a 6.5km dual two-lane highway scheme at Hindhead in Surrey.

The scheme, costing £371 million, includes a 1.8km twin-bore tunnel which removes the trunk road from Hindhead village and from the Devil’s Punchbowl.

The Devil’s Punchbowl is a famous National Trust preservation site of natural beauty, which will benefit from the closure thanks to reduced pollution and noise levels. The project intends to make journeys quicker and safer and also aims to remove much of the present peak time ‘rat-race’ traffic from country roads around Hindhead. The project commenced in 2007 with the tunnel being dug the following year.