A15 road (England) over the old route of the A15 (B1206) and over the South Trans-Pennine railway. At junction 5, the A15 reforms at the dual-grade "Barnetby Top Interchange", which is crossed by the Viking Way and has an exit to Elsham. It continues north as a dual carriageway which carries about as little traffic as the M180. The M180 drops to two lanes under this roundabout and continues to Grimsby and Immingham as the A180. The A15 towards the Humber Bridge, goes directly across the runways of the former RAF Bomber Command airfield at RAF Elsham Wolds (where over 1000 of its
A15 road (England) Coleby Grange, and B1178 (for Harmston), where it passes Dunston Pillar. At Nocton Heath, it passes the "Kitchen" cafe. On the route to Lincoln, it goes near to two RAF bases – RAF Digby, which is used for communications rather than as a flying station, and across the end of the runway of RAF Waddington, which flies AWACS and Nimrod aircraft. A parking place and cafe are provided for plane spotters on the eastern side of the road. Next to the runway at Waddington is an old Vulcan, carrying the number of the plane that bombed Port Stanley. The A15