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High Speed 2 - Impact on the Chilterns

The proposed HS2 route will impact directly and indirectly on many aspects of life in the AONB, including its landscapes, wildlife, historic and cultural heritage, communities and local economy, recreation and access.

A series of themed maps, photos and text have been produced by the Chilterns Conservation Board to highlight environmental features potentially affected along the HS2 route within the AONB. The maps incorporate national and local data sets, including new survey data on hedgerows and veteran trees along the HS2 construction corridor. Field surveys were carried out in summer 2010, and focussed primarily on the route through the AONB to the west of the Amersham tunnel.South heath

A second series of maps, photos and text has been produced to show countryside sites, walking and cycling routes, rights of way and visitor destinations potentially affected by the proposed HS2 route.

It is important to bear in mind that the impacts on the nationally important landscapes of the AONB go far beyond the effects on individual features. It should also be pointed out that there will inevitably be features not currently identified or designated, all of which need to be taken into account before the full impact of the scheme can be assessed.

It is also important to remember that as well as the railway structures shown on the maps - tunnels, viaducts and so on there will also be a host of additional associated infrastructure including gantries, fences, access roads, communications masts and power supply infrastructure. No details of these have been supplied by HS2 Ltd.

The maps and other resources can be downloaded below:

Summary map of route through Chilterns - showing changes as of January 2012

Panorama Photo Tour - click on the labelled viewpoints then use the horizontal scroll bar to view the image.

Overview map - shows coverage of individual themed maps.

Summary of impact on Chilterns - facts and figures - as of February 2014

Information on route by section

1: Chalfont St Giles section

Historic Environment map 1

Natural Environment map 1

Recreation and Access Map 1

2: Amersham section

Historic Environment map 2

Natural Environment map 2

Recreation and Access Map 2 

3: Shardeloes section

Historic Environment map 3

Natural Environment map 3

Recreation and Access map 3

4: Hyde Lane - Mantle's Wood section

Historic Environment map 4

Natural Environment map 4

Recreation and Access Map 4

5: Potter Row section

Historic Environment map 5

Natural Environment map 5

Recreation and Access map 5

6: The Lee - King's Ash section

Historic Environment map 6

Natural Environment map 6

Recreation and Access Map 6

7: Wendover section

Historic Environment map 7

Natural Environment map 7

Recreation and Access map 7


Impacts on access and rights of way

1) Impacts of HS2 on Access and Rights of Way in the Chilterns (Oct 2012)  

A five-page document summarising the importance of AONBs and Access in the Chilterns to health and well-being, the local economy and tourism. Provides important contextual information. Sets out concerns about rights of way during construction and operation.

2) HS2 Maps (January 2013) showing the location of structures along the route (HS2 worksites, ventilation shafts, access roads, viaduct launch areas etc).

Wendover Area

Wendover Dean to Hyde Heath

Hyde Heath to Amersham

3) Community Fora documents supplied by HS2 commenting on each right of way impacted during and after construction and the duration of works (October 2012).

Central Chilterns

Dunsmore, Wendover, Halton