HS2 (High Speed Two) Ltd has obtained approval for an ambitious scheme which will use material excavated from the Chiltern tunnels to create 127 hectares of new chalk grassland, woodland, wood pasture and wetland habitats around the tunnel’s south portal.
The ‘Colne Valley Western Slopes’ project – which was approved under Schedule 17 of the HS2 Act by Three Rivers District Council and Buckinghamshire Council – will see the transformation of what is now an HS2 construction site into one of the largest areas of new chalk grassland in the Chiltern hills.
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Green light for HS2’s ambitious Chiltern tunnel chalk grassland project





