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HS2 in Buckinghamshire and Oxfordshire

HS2 in Buckinghamshire and Oxfordshire
Quainton Windmill, Buckinghamshire

Find out what HS2 means for Buckinghamshire and Oxfordshire

The HS2 route in Buckinghamshire and Oxfordshire will travel through The Chalfonts, Central Chilterns, to the south-west of Aylesbury and across north-east Oxfordshire.  

Within Buckinghamshire, the route includes the Chiltern Tunnel with a North Portal (tunnel entrances/exits) and five shafts along its length, four of these are ventilation shafts at Chalfont St Peter, Chalfont St Giles, Amersham and Little Missenden, with the fifth shaft being an intervention one at Chesham Road.

There will be four viaducts at the Thame Valley, Colne Valley, Wendover Small Dean and Wendover Dean. There will also be an infrastructure and maintenance depot at Calvert.

HS2 Works in your area

Our In your area map brings all our of work notifications together on one page, making it easier for you to navigate and ensure you are kept up-to-date on the work we are doing in your area.

Search our in your area map to find information about all current works in the Buckinghamshire and Oxfordshire area.

View a list of all current works notifications in Buckinghamshire

View a list of all current works notifications in Oxfordshire

What we're delivering in Buckinghamshire and Oxfordshire

Colne Valley Viaduct

The Colne Valley Viaduct, which will carry the new high-speed rail line for 3.4km across a series of lakes and waterways.

Colne Valley Western Slopes

Integration of the HS2 rail line within the Colne Valley Western Slopes.

Chiltern tunnel

The Chiltern tunnel is the longest tunnel on the HS2 route.

Chalfont St Peter ventilation shaft

The headhouse provides emergency services access to support a possible incident in the Chiltern tunnel.

Chalfont St Giles ventilation shaft and headhouse

The Chalfont St Giles ventilation shaft and headhouse is the second of four structures for the Chiltern tunnel.

Amersham ventilation shaft and headhouse

The headhouse provides emergency services access to support a possible incident in the Chiltern tunnel.

Little Missenden ventilation shaft headhouse

The Little Missenden ventilation shaft and headhouse is one of four structures that will be built for the Chiltern tunnel.

Thame Valley Viaduct

The Thame Valley Viaduct is located within the Northern Vale.

Closure and diversion of Station Road, Quainton

As part of our continuing works ahead of the construction of the railway we are carrying out highway improvement works to Station Road.

Chesham Road intervention shaft design review

Find out more about Chesham Road intervention shaft
  • Construction

    HS2 has appointed joint ventures Align and EKFB to deliver civil engineering works across an 80km section of the Phase One route, which will run north east of Banbury and east of Brackley.

  • Supply Chain

    More than 140 businesses working on HS2 already are located within Buckinghamshire and Oxfordshire. Over three-quarters of these businesses are SMEs.

  • Community Fund

    Since our Community and Business funds were launched in 2017, 53 projects in Buckinghamshire have shared over £3.15 million.

Three month construction look ahead

Autumn 2021

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