A303 Amesbury to Berwick Down (Stonehenge) Tunnel and Road Scheme

About

Highways England awarded a contract to BeMo Tunnelling UK Ltd, FCC Construcción, S.A., and Webuild S.p.A.

for the design and construction of the A303 Amesbury to Berwick Down (Stonehenge) scheme, valued at AUD 1,169,383,706.09.

The contract is contingent upon the Secretary of State for Transport granting a Development Consent Order (DCO) following the quashing of the previous decision.

The scope includes a twin-bore tunnel approximately 2 miles (3.3 km) long beneath the Stonehenge World Heritage Site, tunnel portals, approach structures, service buildings, plant rooms, tunnel control systems, and mechanical, electrical, and plumbing (MEP) systems.

It also covers the design, manufacture, testing, shipping, and on-site assembly of a tunnel boring machine, carriageway works, bridge works (a viaduct over the River Till, an underbridge for the B3083, a flyover at the A345 Countess Roundabout, and four green bridges), carriageway and tunnel technology, landscaping, habitat creation, extension of Parsonage Down National Nature Reserve, protected species mitigation, rights of way and private means of access, mainline earthworks, and utilities works.

Additionally, the contract involves refurbishment, replacement, and modification of existing assets owned by National Highways and Wiltshire Council, with continued engagement and consultation required.