HS2 in Buckinghamshire and Oxfordshire
The new high-speed railway travels through the Chalfonts, the Central Chilterns, and Aylesbury before reaching north-east Oxfordshire.
The 10-mile Chiltern Tunnel includes five shafts: four ventilation shafts at Chalfont St Peter, Chalfont St Giles, Amersham, and Little Missenden, and one intervention shaft at Chesham Road.
Four major viaducts – Colne Valley, Wendover Dean, Small Dean, and Thame Valley – will carry high-speed trains across the landscape. The route also includes a key infrastructure and maintenance depot at Calvert.
View or download our HS2 in Buckinghamshire route and key structures map.
Find out more about our works in the area
Funding in Buckinghamshire
£40m Community and Environment Fund (CEF and BLEF)
The Fund is administered by Groundwork UK on behalf of HS2 Ltd. One funding programme (with dual aims) to offset the disruption of Phase One of HS2 on local communities.
£15m allocated to the HS2 central region (Staffordshire, Warwickshire, Buckinghamshire, Northamptonshire, Oxfordshire and Hertfordshire). Of which – £7.39m has been allocated to 142 projects in the central region to date (including £3.6m to 66 projects in Buckinghamshire). Projects supported through CEF & BLEF can be found on the interactive map.
£30m Road Safety Fund (RSF)
To mitigate the effects of construction traffic along the line of route (where funding is not already provided out of the overall HS2 budget) with a focus on leaving a legacy of enhanced road safety.
£3.95m allocated to Buckinghamshire Council. £310k (8%) drawdown for projects to date, to fund programme development and, to date, one scheme.
Buckinghamshire Council have developed a RSF specific webpage to find out more about the funds and how to apply.
£5m Woodland Fund
Funding to support native woodland creation and the restoration of Plantations on Ancient Woodland Sites (PAWS) within a 25-mile zone surrounding the HS2 Phase One route.
The fund is administered by the Forestry Commission on behalf of HS2 Ltd.
£1.45m approved to 34 projects to date. 17 projects funded in Buckinghamshire to date with a total investment of £190,765.
Our Green Corridor online mapping tool shows how we are minimising and compensating for the environmental impact of HS2 (points and areas shown on the map in light blue), as well as the progress of environmental and community projects (points and areas shown on the map in purple).
Traffic Information Guides
These traffic guides provide you with details of how construction traffic is going to be managed in your area. Please take a look at the routes that we plan to use in the areas we are operating in. You can gain an overview of the control measures that are in place across the whole HS2 route, as well as specific local actions, such as junction improvements and crossings.
Main Works Contractors in Buckinghamshire
Align is the main works contractor constructing both the three kilometre long Colne Valley Viaduct and the Chiltern Tunnel. EKFB is the main works contractor building the HS2 railway line from the North Portal at South Heath through to Southam in Warwickshire.
HS2 and the role of the Highways Authority in highway matters
The HS2 Act of Parliament provides HS2 Ltd and their contractors with the powers to work in the highway to construct the new railway. The responsibilities that councils have for HS2 works differ slightly from other highways work. In all cases, the local Highway Authority is consulted and in certain cases, the consent of the highway authority is required.
HS2 Ltd and their contractors produce Local Traffic Management Plans and work very closely with the councils and their highways teams to ensure that traffic is well managed. HS2 Ltd is only required to seek consent on traffic routes for vehicles over 7.5 tonnes. Further information can be found in the HS2 Act or contact our HS2 Helpdesk team on 08081 434 434 or email [email protected]
Lorry movements in Buckinghamshire
The below guide provides details on the number of Heavy Goods Vehicles (HGVs) using the road network in Buckinghamshire. In parts of Buckinghamshire two of our main works contractors – Align and EKFB – share the same traffic routes, so the guide below provides an overview of the combined traffic numbers for both contractors.
Traffic information guides
Please follow the links below to find out how construction traffic is going to be managed in your area.
Chiltern Tunnel vent shafts
We are building four ventilation shafts and one intervention shaft for the Chiltern Tunnel. Please find here details of the latest construction works.
What we're delivering in South Buckinghamshire
Colne Valley Viaduct
Stretching for more than 3.4km (2 miles) across a series of lakes and waterways between Hillingdon and the M25.
Chilterns South Portal Chalk Grassland Project
A new chalk grassland project in the Chiltern Hills is being constructed as part of our Green Corridor Programme.
Chiltern Tunnel
The Chiltern Tunnel is 16km (10 miles) long and will carry passengers under the Chiltern Hills.
Chalfont St Peter Headhouse
The Chalfont St Peter Headhouse will provide ventilation and emergency access to the (10 miles) Chiltern tunnel.
Chalfont St Giles Headhouse
The Chalfont St Giles Headhouse will provide ventilation and emergency access to the 16km (10 miles) Chiltern tunnel.
Amersham Headhouse
The Amersham Headhouse is set just outside the town, and will regulate the air quality of the Chiltern Tunnel.
Little Missenden Headhouse
The Little Missenden Headhouse will provide ventilation and emergency access to the high-speed rail line’s 16km (10 miles) Chiltern tunnel.
Chesham Road Intervention Shaft
The intervention shaft will provide access for emergency services. It will be located off the B485 at Hyde End, near Gt Missenden.
Chiltern Tunnel North Portal ancillary building
The North Portal of the Chiltern tunnel has been designed to provide air pressure and noise relief.
What we're delivering in the North Chilterns to Aylesbury area
Wendover Dean Viaduct
Located south of the village of Wendover in Buckinghamshire.
Small Dean Viaduct
The striking 345m long Small Dean Viaduct, just south of Wendover.
Thame Valley Viaduct
The Thame Valley Viaduct is located within the Northern Vale and crosses the low-lying Thame Valley.
Turweston Green Bridge
The 99m wide green bridge is the largest on the HS2 project and will cross the railway near the village of Turweston.
Rural footbridges
We’re building bridges that will carry rural footpaths and bridleways across the new high speed railway.
What we're delivering in the Calvert area
Calvert Infrastructure Maintenance Depot
The Calvert depot will ensure that HS2 runs safely and efficiently.
Sheephouse Wood Bat Protection Structure
The Sheephouse Wood Bat Protection Structure will run for around 1km alongside Sheephouse Wood in Buckinghamshire.
Keeping you informed
Stay informed by the works
Find information about HS2 works and activities taking place in your area.
Managing impacts of construction
Find out information about how we manage construction impacts.
Construction look ahead and newsletters
Read our three-month look ahead and newsletters for associated work in Buckinghamshire and Oxfordshire.