|To:||Coychurch roundabout (SS934793)|
|Distance:||2.4 miles (3.9 km)|
|Meets:||A4061, A473, A473|
|Route outline (key)|
The road starts at an undefinable signalised junction on the A4061 on the eastern edge of the town centre and heads south along Tremains Road. It passes through an industrial estate then becomes residential just before reaching traffic lights.
All that has gone before is the most recent part of the B4181, gaining its number when the A4061 was given its present route. The road to the right is the original B4181 out of Bridgend; now this is a spur across both branches of the railway line, ending at traffic lights on the A473.
The mainline of the B4181 continues east from the traffic lights above along Coychurch Road. The road appears to run between housing estates rather than through them, with properties only accessed via side roads. Presently the houses leave us completely as we run alongside the railway line to Cardiff. We reach a T-junction and TOTSO right under the railway line before a short dualled section leads to the end of the road at a large roundabout on the A473. Owing to the low bridge overheight traffic is signposted left at the T-junction instead; this takes traffic back in a circle to rejoin the A4061 a couple of roundabouts north from the B4181 junction.