|Location Map ( geo)|
|Distance:||3.2 miles (5.1 km)|
|Meets:||A49, B5252, A6, B6228|
|Route outline (key)|
The B5251 is a largely urban B-road in south Lancashire.
The road starts at a mini-roundabout on the A49 on the western edge of the village of Coppull and heads northeastward through the village before zigzagging to go under two adjacent railway bridges. The first is now disused (it served the line through Coppull railway station, closed in 1967) while the second carries the former station bypass alignment of today's electrified West Coast Main Line.
At a mini-roundabout a short distance further on, the B5251 forks left to follow a broader and straighter alignment which was newly constructed in the 1920s and opened in about 1926. The original line of the road, following the right fork, crosses today's route shortly after both routes have bridged the River Yarrow.
Close to where the new alignment terminated at a junction with Butterworth Brow and Moor Road, Chorley, the B5251 now meets and crosses the B5252 Chorley western bypass at a roundabout. The direct line of the old route along Butterworth Brow is now bridged by the bypass and accessible only to pedestrians and cyclists.
East of the bypass the road continues into Chorley itself. It formerly ended on the southern edge of the town centre, at the point where it met the A6 Market Street / Bolton Street. The A6 having since been diverted to follow Shepherds Way / Lyons Lane South – a dual-carriageway relief road running a little further to the east – the B5251 has now been extended along George Street (formerly the western end of the B6228) to meet the current A6 at a roundabout junction with the dual carriageway and the present start of the B6228.