COLNE VALLEY VIADUCT – Denham/Harefield • UK • 2025
THE SITEThe Colne Valley Viaduct is a railway bridge that will carry High Speed 2 over the Colne Valley Regional Park and the Grand Union Canal. It runs between Harefield in Hillingdon, Greater London and Denham in Buckinghamshire. The 2.1-mile-long (3.4-km) gently curving structure, to the northwest of London, will carry HS2 trains travelling up…