HS2 completes the UK's longest railway bridge

This video has no narration. The soundtrack is music only and ends at about 56 seconds, so the closing title cards are silent. Visual description: the film opens with an aerial view along the completed deck of the Colne Valley Viaduct as it curves across the lakes north-west of London, with construction plant still on the approach embankment. A ground-level shot from the riverbank looks up at the underside of the deck and its concrete piers. Drone views then follow the white arched spans across the water: a wide shot over the lakes and surrounding woodland, a low pass along the deck parapet, a view over a marina of moored narrowboats beneath the spans, and a long shot down the length of the structure. The final aerial shot pulls back over the end of the viaduct where the deck meets the earthworks, with a group of workers in orange high-visibility clothing gathered on the deck to mark completion of the final section. The film closes with HS2 title cards inviting viewers to subscribe and giving the address www.hs2.org.uk.