The controversial Stonehenge tunnel on the A303 has been given the green light after over 30 years of discussions and delays.

Secretary of State for Transport Grant Shapps has today granted permission for the development of the two-mile tunnel and dual carriageway on the basis it would ease congestion and, in turn, help the local economy.

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The decision letter states the project will provide a "strategic benefit" in removing "a notorious bottleneck" causing delays and diversions on "less suitable" roads.

The long-awaited decision has been welcomed by campaigners and politicians including Salisbury MP John Glen who said he was "absolutely delighted" with the move.

Highways England which will be carrying out the works said the scheme will transform journeys "for millions of people" and hailed the plans as "a major milestone".

Cllr Bridget Wayman, Wiltshire Council Cabinet Member for Highways, added: “We’re delighted that, after many years of planning and lobbying by our dedicated officers and members, consent has been granted for the A303 Stonehenge project.

“It represents a significant investment in Wiltshire that will boost the south-west economy, unlocking jobs and investment throughout the entire region. We now can look forward to construction beginning, and unlocking all the benefits the scheme will bring to Wiltshire and the south west.”

But not everyone is happy with the scheme and the government's decision to carry on with it.

A number of acheologists and environmental groups have spent years campaigning against the £1.7bn project over fears it would destroy the World Heritage Site.

Stonehenge Alliance, which had petitioned against the tunnel, said it "deeply regrets" the decision "which will send shock messages around the world".

President of Salisbury Chamber of Trade, Andy Rhind-Tutt said the decision was "the most monumental waste of money on a scheme that will not serve purpose in any sense".

Fieldwork is due to start in late spring next year while the main five-year construction phase is expected to start by 2023.

However, a Judicial Review challenging the government's decision may well take place before then as a way to oppose the scheme.