HS2 Colne Valley Viaduct

Update on parapet installation on the viaduct construction in north west london as progress reaches Korda lake almost halfway. There's a great view here at street level at Moorhall Road in between Denham and South Harefield where the viaduct crosses over the road. Viaduct construction is due to be completed later this year at 3.4km in length. HS2 is the UK’s new high speed line between London and Birmingham due to open 2029/2033.