|Location Map ( geo)|
|From:||Swineshead Bridge (TF216430)|
|To:||Chain Bridge, Boston (TF303434)|
|Distance:||6 miles (9.7 km)|
|Met (1956):||A17, B1192, A52|
|Now part of:||A1121|
|Route outline (key)|
The B1371 was a rural B-road alongside the South Forty Foot Drain in the Lincolnshire Fens. The road was originally unclassified, gaining the B1371 number in the mid-1920s. However, owing to the road's importance it was upgraded to Class I status in the late 1950s, becoming the A1121.
The road started on the A17 at Swineshead Bridge and headed east. A couple of bends took the road to meet the railway line into Boston, with the South Forty Foot Drain on the far side; the three ran alongside each other for the remainder of the route of the B1371.
Shortly after bending to the right the road reached Hubberts Bridge, where it met the B1192. There was then a dead-straight section for a couple of miles until the A154 (present A52) came in from the right at the Chain Bridge and the B1371 ended.