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) and a bridge over the former GNR Grantham-Lincoln railway, where it becomes "St Catherine's Road", and passes an Eleanor Cross. At a roundabout at the south end of (what becomes) Lincoln's "High Street", it exits to the right along "South Park", passing the HQ of Lincolnshire Fire and Rescue Service, and meets the B1188 at traffic lights, where it heads left as "Canwick Road". At Pelham Bridge (which was opened by the Queen in 1958), it crosses the railway, with the railway station on the left, the junction with the start of the A57 and Siemens (former Alstom) factory. It