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) are Rippingale and Kirkby Underwood. Between Rippingale and Aslackby a wooded lay-by known locally as 'Turnpike Bar' marks the deviation from the line of the Roman Road Mareham Lane. The A15 passes by Aslackby and the " Robin Hood and Little John", and then through the middle of Folkingham. There is the Threekingham Bar roundabout with the east-west A52, and it goes through Osbournby, as "London Road" the primary school]. It passes the "Tally Ho Inn]" near Aswarby, then there are left turns for Aunsby and Swarby. Sleaford and Silk Willoughby] were on the A15, which slowed traffic down as