The building of a new road in Cornwall is uncovering more and more history of the old A30 route – from the Middle Stone Age all the way through to 20th Century D-Day embarkation camps and Cold War bunkers.

The Cornwall Archaeological Unit has been working closely with contractors Costain as part of Highways England’s A30 Chiverton to Carland Cross upgrade, a scheme which will create nearly nine miles of new dual carriageway, providing uninterrupted journeys from the M5 at Exeter to Camborne.

And as the new route takes shape, Cornwall Council’s archaeological team have been working hard to chart the history around the old route, and the communities who have lived and worked alongside – from pre-history, through Roman times to medieval ironworking to later-day mining, agricultural and military activity.

Among the more significant finds, the team have found:

• A flint scatter representing a working area which probably dates to the Mesolithic/Neolithic transition period, circa 6,000 years ago

• Beaker and Bronze Age pots, pits and roundhouses, circa 4,500-3,000 years ago

• Medieval ironworking and activity circa 12th-13th centuries AD

• A Second World War US ‘sausage camp’, an embarkation camp prior to D-Day, 1943-44

• An as yet undated, but earlier, route of what is now the A30, which has been identified so far at four locations along the new road

All finds are being recorded and evaluated, and the more significant discoveries will eventually go on display at the Royal Cornwall Museum in Truro.

Sean Taylor, senior archaeologist for the CAU, said: “Working with the scheme has offered us a rare opportunity to identify and record the history hidden below the ground in the form of buried archaeology.

“The route of the scheme, in historical and archaeological terms, offers a random cross section in both space and time through the landscape and we have been able to use this to add a lot to our knowledge of the history of this area.

“Our investigations have revealed evidence of human occupation of this landscape from the hunter-gatherers of the Mesolithic or Middle Stone Age period through to the first farmers of the Neolithic or New Stone Age and some of the first permanent settlements of the Bronze Age.

“We then have Iron Age and Roman fortified farmsteads, Dark Age farming, medieval ironworking, post-medieval field enclosure and mining, through to D-Day embarkation camps and a Cold War bunker.”

Falmouth Packet:

The remains of a Bronze Age roundhouse uncovered during the archaeological survey work

Josh Hodder, senior project manager for the Highways England scheme, said: “We, along with our contractors, have been working closely with the Cornwall Archaeological Unit throughout the life of the scheme.

“Cornwall has a rich cultural heritage and the team have brought their expertise to bear in adding to that history. In keeping with Highways England’s approach to protecting the country’s cultural heritage, we want to ensure that archaeological remains are preserved and recorded.

“We’re delivering the biggest roads investment in a generation, and we are absolutely committed to conserving and, where possible, enhancing the historic environment around a number of schemes across the country.”

During their work this year, the archaeological unit have engaged with and involved local communities, including students from Truro College and volunteers.

Cornwall Council’s archaeological unit are keen to get more people, young and old, engaged in their work, and heading into the Council for British Archaeology’s annual Festival of Archaeology (July 17 to August 1) they are currently appealing for volunteers to help at future digs throughout the county.

Volunteers have been helping with recent digs at Trevalso and Ventonteague, and anyone interested in getting involved in the future can find more information and contact details at

The A30 Chiverton to Carland Cross upgrade includes:

• a 70mph dual carriageway

• a two-level junction at Chiverton Cross and a new roundabout to ensure the free flow of traffic on the A30

• a new partial junction at Chybucca built on two levels with west-facing slip roads to provide access onto the dual carriageway from local routes

• new bridges at Tolgroggan Farm, Pennycomequick Lane and over the Allet to Tresawsen road to provide local access

• a two-level junction at Carland Cross with a new roundabout north of the dual carriageway and re-using the existing roundabout to the south

• keeping the existing A30 as a local route with new sections where necessary to provide continuity and connectivity for local communities

The £330 million upgrade is scheduled to be open to traffic in 2023.

The cost of developing the scheme is being partly funded by an £8 million contribution from the European Regional Development Fund, with an additional £12 million for the construction phase. The remainder of the cost of developing and delivering the scheme is being funded by central Government.