|Location Map ( geo)|
|Distance:||1.6 miles (2.5 km)|
|Meets:||A534, A5152, A525|
|Old route now:||A5152|
|Route outline (key)|
The B5100 comprises two separate roads, either side of Wrexham town centre.
The road starts at a roundabout on the A534 in Rhosnesni, to the northeast of the town centre, and heads northwest along Dean Road to a mini-roundabout. Officially the B5100 then turns left onto Rhosnesni Lane but the road as far as the next mini-roundabout is one-way (in this direction) so eastbound traffic needs to zigzag north along Borras Road to reach Dean Road.
When the two directions combine again the B5100 continues west along the remainder of Rhosnesni Lane to reach a roundabout on the A5152 (pre-bypass A483). There is then an extended multiplex along the A-road as far as Ruabon Road to the southwest of the town centre. This is the other pre-bypass A483 radial.
The B5100 recommences at a mini-roundabout where the other three directions are all A5152. It heads east along Fairy Road into Trevor Street before bending left into Talbot Road. At the end of this road is a T-junction and the B5100 TOTSOs right into Salisbury Road before ending round the corner at traffic lights on the A525.
The unusual shape of the B5100 can be explained by its history. Originally it connected the A540 (later A483) to itself either side of the town centre, thus providing a western bypass. It was later extended clockwise to the A534 and then anticlockwise to the A525, thus going round two-thirds of the town centre.
Given that the B5100 formed a town-centre bypass it was therefore easily upgraded to Class I status. By the 1970s the section of road joining the two A483 radials (i.e. the original section of the B5100) had become an A-road, thus leaving the B5100 as two unconnected sections. This upgraded section is now numbered A5152, although the original northern section, along Grove Road, has been bypassed.