Public procurement notice: Contract Notice
Published: 2019-07-15
Buyer: Highways England Company Ltd
Country: UK
Contract type: Works
Procedure: Competitive dialogue
CPV classification: 43123000 | 45112500 | 45221000: Engineering works for bridges and tunnels | 45221100: Bridge construction works | 45221111
Estimated value: 1250000000 GBP
Submission deadline: 2019-09-13
Award criteria: The most economic tender

Technical requirements: The scheme is an integral part of Highways England's commitment to deliver a high-performing, high-quality route along the A303/A358 corridor between the South West and South East. It will also help to conserve, reconnect and enhance the Stonehenge World Heritage Site (WHS), making it easier to reach and explore, as well as improving biodiversity and providing a positive legacy for nearby communities.
— a new junction between the A303 and A360 to the west of and outside the WHS, replacing the existing Longbarrow roundabout,
Highways England is looking to work collaboratively with a high performing partner, their supply chain and stakeholders to successfully realise the aims of this challenging and rewarding scheme.
The requirements of the scheme that will be the responsibility of the successful applicant are principally captured in the following areas:
The scheme's new works includes the design and construction of the civil, Mechanical, Electrical and Plumbing (MEP), technology and environmental components, key features of the new works are summarised below:
— tunnel: a twin-bore tunnel, approximately 2 miles (3,3 kilometers) long beneath the Stonehenge World Heritage Site, including tunnel portals and approach structures, tunnel service buildings and plant rooms, tunnel control system and mechanical, electrical and plumbing systems,
— bridge works to form a viaduct over the River Till, an under bridge for the B3083, a flyover at the A345 Countess Roundabout, and 4 green bridges (Parsonage Down accommodation bridge, Winterbourne Stoke accommodation bridge, A360 Longbarrow Junction and green bridge No 4),
There are works required on existing assets under the current ownership of both Highways England and Wiltshire Council. Continued engagement and consultation will be required with both parties throughout the design and construction phases for these elements including:
Maintenance and operation of the existing A303 within the site boundary will be required for the duration of the construction works. The appointed contractor will be required to liaise with Highways England, its maintenance contractors and Wiltshire Council to coordinate activities.
There is an extended maintenance period (minimum of 5 years, maximum of 7 years) after construction to 'prove' the tunnel performs as intended. Maintenance is included as part of this period and the contractor will be responsible for all elements of the infrastructure associated with the tunnel and its approaches. The appointed contractor will be required to liaise with Highways England, its maintenance contractors and Wiltshire Council to coordinate activities and tunnel operations.
The appointed Contractor will be required to fulfil the duties of principal designer and principal contractor under the Construction (Design and Management) Regulations 2015.
Option for between 5 and 7 years for extended maintenance and commissioning to enable alignment with regional maintenance contracts.
2) Click the 'PQQs Open To All Suppliers' link. These are Selection Questionnaires (SQ) open to any registered supplier.
— click the 'Express Interest' button at the top of the page. This will move the PQQ into your 'My PQQs' page. This is a secure area reserved for your projects only.
3) Click 'My Response' under 'PQQ Details', you can choose to 'Create Response' or to 'Decline to Respond' (please give a reason if declining).


Award value: 1250000000