Description: This website has information about what we are doing in Hillingdon, including notifications of our upcoming works, how it’s being constructed and what we’re doing to make it less disruptive.
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Within Hertfordshire, infrastructure such as the Colne Valley Viaduct, the Chiltern Tunnel South Portal and the Chilterns South Portal Chalk Grassland Project will be constructed.
Residents may hear our works activity from viaduct fabrication plant at HS2’s South Portal works site near West Hyde, Rickmansworth.