---
title: "A303 Amesbury to Berwick Down (Stonehenge)"
ocid: "ocds-h6vhtk-0372ce"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0372ce"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-0372ce.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-0372ce.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "NATIONAL HIGHWAYS"
published: "2022-10-04"
---

# A303 Amesbury to Berwick Down (Stonehenge)

Buyer: NATIONAL HIGHWAYS  
Current stage: Award  
OCID: ocds-h6vhtk-0372ce

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## Summary

The National Highways authority has completed the tender process for the A303 Amesbury to Berwick Down (Stonehenge) project, which falls under road tunnel construction works. This project involves the construction of a bypass, tunnels, bridges, and associated infrastructure to enhance the A303/A358 corridor between the South West and South East of England.

This procurement opportunity, which is currently in a cancelled status, was conducted through a selective competitive dialogue method. The awarded contract has a value of £1,169,383,706.09 GBP and was signed on 8th September 2022. Businesses involved in tunneling machinery, earthmoving, bridge construction, and highway maintenance services may find this tender conducive to their growth and expansion.

## Notice

The scheme is an integral part of National Highways 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. The scheme will be approximately 8 miles (13km) long and comprises the following key components: * A northern bypass of Winterbourne Stoke with a viaduct over the River Till valley; * A new junction between the A303 and A360 to the west of and outside the WHS, replacing the existing Longbarrow roundabout; * a twin-bore tunnel approximately 2 miles (3.3km) long through the WHS; and * a new junction between the A303 and A345 at the existing Countess roundabout.

### Lot Information

Lot 1

The requirements of the scheme that will be the responsibility of the successful applicant are principally captured in the following areas: 1. Design and construction of the new works; 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 portals and approach structures, tunnel service buildings and plant rooms, tunnel control system and mechanical, electrical and plumbing systems. * Tunnel boring machine - design, manufacture, testing, shipping and on-site assembly. * Carriageway works. * 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 & green bridge No. 4). * Carriageway and tunnel technology * Landscaping and habitat creation. * Extension of Parsonage Down National Nature Reserve. * Protected species mitigation measures. * Ensure rights of way and private means of access. * Mainline earthworks * Utilities works 2. Refurbishment, replacement and modification of existing assets; There are works required on existing assets under the current ownership of both National Highways and Wiltshire Council. Continued engagement and consultation will be required with both parties throughout the design and construction phases for these elements including: * Existing A303 de-trunking works * Demolition works and site clearance works * Modification works to existing structures 3. Maintenance and operation during construction 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 National Highways, its maintenance contractors and Wiltshire Council to coordinate activities. 4. Post construction maintenance period 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 National Highways, its maintenance contractors and Wiltshire Council to coordinate activities and tunnel operations. The appointed Contractor will be required to fulfil the duties of Principle Designer and Principal Contractor under the Construction (Design and Management) Regulations 2015.

Options: Option for between 5 and 7 years for extended maintenance and commissioning to enable alignment with regional maintenance contracts.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/027837-2022 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Selective |
| Procurement method details | Competitive dialogue |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 4 Oct 2022 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 7 Sep 2022 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £1,169,383,706 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Cancelled |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NATIONAL HIGHWAYS |
| Locality | GUILFORD |
| Post town | Guildford |
| Postcode | GU1 4LZ |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ2 Surrey, East and West Sussex |
| ITL 3 | TLJ25 West Surrey |
| Local authority | Guildford |
| Electoral ward | Stoke |
| Westminster constituency | Guildford |
| Delivery location | TLK15 Wiltshire |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 3 |
| Supplier names | BEMO TUNNELLING; FCC CONSTRUCCIÓN; WEBUILD |

## CPV Codes

### Divisions

- 43 - Machinery for mining, quarrying, construction equipment
- 45 - Construction work
- 50 - Repair and maintenance services
- 71 - Architectural, construction, engineering and inspection services

### Codes

- 43123000 - Tunnelling machinery
- 45112500 - Earthmoving work
- 45221000 - Construction work for bridges and tunnels, shafts and subways
- 45221100 - Construction work for bridges
- 45221111 - Road bridge construction work
- 45221200 - Construction work for tunnels, shafts and subways
- 45221240 - Construction work for tunnels
- 45221241 - Road tunnel construction work
- 45221247 - Tunnelling works
- 45233100 - Construction work for highways, roads
- 45233120 - Road construction works
- 45233124 - Trunk road construction work
- 45233139 - Highway maintenance work
- 45233141 - Road-maintenance works
- 50230000 - Repair, maintenance and associated services related to roads and other equipment
- 71311220 - Highways engineering services
- 71322000 - Engineering design services for the construction of civil engineering works
- 71322300 - Bridge-design services
- 71631480 - Road-inspection services

## Release History

- 4 Oct 2022 at 12:51 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/027837-2022

## Notice URLs

- https://nationalhighways.co.uk/
- https://ted.europa.eu/udl?uri=TED:NOTICE:056979-2019:TEXT:EN:HTML

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-0372ce. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-0372ce.json.