From Roader's Digest: The SABRE Wiki
|Length:||11.9 miles (19.2 km)|
|Meets:||A467, A469, A470, A4054|
|Now part of:||B4600|
|Route outline (key)|
Originally the easternmost end of the road began at the Handpost Pub at the junction of the original route of the A467 and proceeded along Bassaleg Road before reaching the current starting point.
Bassaleg - Nantgarw
The current starting point of A468 is at a junction of the re-routed A467 just to the north of M4 junction 28. It heads westwards towards Caerphilly and on to the A470. It is single carriageway, and much less urbanised than the A467. The eastern section follows the Rhymney River through Machen and Bedwas, before bypassing Caerphilly (complete with castle and leaning tower) to the north.
The north-west section of the Caerphilly bypass threads its way through the edge of town, and is a multiplex with the A469, which runs south towards Cardiff. There then follows a short stretch of dual carriageway before we reach the A470 at a grade separated roundabout. After crossing the A470, the A468 runs for another 200 yards to a roundabout on the A4054, which in a previous life, used to be the A470.