|To:||Knockin Heath (SJ368210)|
|Distance:||21.9 miles (35.2 km)|
|Meets:||B4393, B4391, B4580, A495, A483, B4398, B4397, A5|
|Old route now:||A495|
|Route outline (key)|
The B4396 is a long rural B-road in the Marches.
The descent continues along Cwm Hirnant to the Tanat Valley on an occasional S1 basis. At Pentybontfawr it reaches a T-junction on the B4391 and multiplexes east along that road until it leaves the valley; the B4396 turns left to stay in the valley bottom. It crosses the Tanat, Rhaeadr and Iwrch rivers in relatively quick succession whilst continuing along the Tanat Valley. At Pen-y-Bont it crosses into England - but given the place names here you would never know.
To the west of Porth-y-Waen the A495 comes in from the right and TOTSOs to begin a multiplex (which has only existed since 1935). This continues to the end of the A495 at a crossroads on the A483 at Llynclys; the road ahead is the B4396 once more.
The B4396 has by now left the hills behind. It goes through Knockin and crosses Knockin Heath to end at a roundabout on the A5.