|Via:||Kirton in Lindsey|
|Distance:||23.4 miles (37.7 km)|
|Meets:||B1273, A1500, A631, B1205, B1400, B1206, A18|
|Old route now:||B1308|
|Route outline (key)|
The road starts at a roundabout on the B1273 to the north of Lincoln city centre and heads north out of town along Burton Road. After going over the A46 bypass Burton is reached and the road then continues along the edge of a plateau, with a steep descent (and view) to the left. Presently the road reaches the A1500, which is crossed at a staggered crossroads, and then continues to reach the perimeter fence of RAF Scampton.
Originally the B1398 continued straight ahead but the road was diverted in the 1950s (as was the A15 to the east) when the runway was lengthened to cater for the Vulcan bombers which were based here. The road now bears left (the old junction here no longer exists) to descend gently along a formerly unclassified road into Scampton. It then continues north via Brattleby before bearing right then left to avoid Ingham and rejoin the original route. Improvements have been made here to give the B1398 priority and lessen the curve of the corners.
The road continues along the top of the bank past Glentworth and crosses the A631 at a roundabout. A few more miles across the fields with barely a building alongside the road takes the road to the top of a hill where it is crossed by the B1206. We then enter Kirton-in-Lindsey, where the B1400 comes in from the right on the near side of the village and multiplexes along the B1398. Shortly afterwards the B1206 comes in from the left and that road is now added to the multiplex. After a couple of hundred yards a crossroads is reached where the three roads go their separate ways, with the B1398 continuing ahead (the B1400 turns left and the B1206 right)
We continue north out of town, still along the top of the ridge. After passing through Greetwell the road enters a wood, in the middle of which it crosses a bridge over the M180. After reaching open fields once more there's a short run to the A18 where the B1398 ends. Traffic is forced to turn left towards Scunthorpe but all movements from the A18 are allowed.
The B1398 formerly included a section in the centre of Lincoln. This was added later and was not part of the route described above when the number was first allocated. However, by the 1960s, the B1398 had a lengthy multiplex with the A1102 and then followed West Parade and Clasket Gate through to the A15 / A158 / B1188 junction in the city centre. This section of road is now part of the B1308.