|Length:||4.8 miles (7.7 km)|
|Met (1923):||A529, A51, A56, A51|
|Now part of:||A41|
|Route outline (key)|
The B5131 was the original number of the Chester eastern bypass.
It started on the A529 (now A41) to the southeast of the city, on the edge of Rowton. It headed north through Christleton, crossing the A51 at Littleton. The road then continued northwest through Piper's Ash before following Pipers Lane to meet the A56 near Hoole Hall. There was a short multiplex east along the A56 before the B5131 continued northwestwards to Upton Heath then turned west along Upton Lane to meet the A51 (now A5116) to the west of Upton.
As a natural bypass, the B5131 may well have been important at the very beginning, especially as, at the time, all traffic through Chester had to converge at The Cross, in the narrow streets of the city centre. It appears that in 1935 the route of the B5131 was altered slightly to avoid Christleton and end closer to Moston than to Upton. Only a few years later this new route was upgraded to Class I status, becoming the mainline of the A41, which it remains.