Work starts on HS2’s 2.1-mile long Colne Valley Viaduct
CONSTRUCTION of HS2’s longest viaduct commenced on March 16, when the first of almost 300 supporting piles was driven into the ground.
The 2.1-mile (3.4km) Colne Valley viaduct will become the UK’s longest railway bridge, carrying the new Euston-Birmingham line across a series of lakes, a park, the Grand Union Canal and the River Colne in Hillingdon, on the north-western edge of London.