The Authorities authorized a £1.7 billion scheme to overtake eight miles of the A303 close to to the world-famous landmark, together with a controversial two-mile tunnel, in July.
Unesco says the World Heritage Site (WHS) could possibly be positioned on the hazard checklist if the plans go forward, but ministers argue the scheme is needed to tackle congestion around the Wiltshire monument.
In a report, Unesco stated it has been “clear and constant that the proposed A303 enchancment scheme shouldn’t proceed in its present type.”
“The at the moment proposed western portal and related twin carriageway inside a slicing would have important and inappropriate antagonistic impacts on the bodily and visible integrity of the property”, it added.
Unesco has requested the Authorities to supply a “state of conservation” on Stonehenge, and warned the positioning could possibly be positioned on the ‘Checklist of World Heritage in Hazard’.
In a letter granting approval to the scheme in July, the Division for Transport stated it was glad “hurt on spatial, visible relations and settings is lower than substantial and must be weighed towards the general public advantages”.
David Bullock, Nationwide Highways’ Undertaking Supervisor for the scheme, told the BBC: “It is rather a lot a scheme goal to preserve and improve the World Heritage Website and that is being achieved by means of shut collaborative working with heritage teams, the impartial A303 Scientific Committee, and our archaeology contractors, who’ve an in depth observe report of labor in reference to the Stonehenge panorama.
“We’ve got taken plenty of care to get thus far, and we are going to proceed to work with the Heritage Monitoring Advisory Group and consultants throughout the Scientific Committee to make sure the scheme is delivered with heritage and the Excellent Common Worth of the World Heritage Website on the coronary heart of each choice made.
“We stay assured this scheme is one of the best answer for tackling a long-standing site visitors bottleneck, enhancing journeys, bringing much-needed aid to native communities, boosting the financial system within the south-west, whereas returning the Stonehenge panorama to one thing like its authentic setting.”
Campaigners final month offered a petition with 225,000 signatures from 147 nations to Unesco in protest over the plans.
“We urge UNESCO to stay robust within the face of the UK Authorities’s indifference to this iconic British heritage web site,” stated the Stonehenge Alliance Marketing campaign.
The Save Stonehenge World Heritage Website (SSWHS) group final month additionally launched a authorized bid to problem the scheme, saying it was irrational to give “no weight” to the possibility that Stonehenge could be delisted as a World Heritage Site if the scheme went ahead.
The Commonplace has contacted Nationwide Highways for remark.