The A2029 runs through the Sussex town of Lewes. Originally the mainline of the A275 it gained its current number when that road was rerouted to the west of the town centre.
The road leaves the A275 at a sharply angled T-junction at the north-western edge of the town. It heads south-east along Offham Road, remaining semi-rural for a surprisingly long time; the view to the left, whenever it presents itself, is pretty good.
The road seems to run between housing estates rather than through one, but does eventually become lined with houses. We cross the mouth of a tunnel on the Lewes to Haywards Heath railway line before entering the town centre.
After ascending White Hill to Mount Place we reach the town's one-way system: a braided gyratory from the north-eastern corner of which the A2029 finally emerges – to continue for some 400 metres, leading out of the town centre along the Phoenix Causeway, crossing the River Ouse, and finally meeting the A26 at a roundabout directly in front of the entrance to the Cuilfail Tunnel.
An amended OpenStreetMap trace for this route awaits uploading to the SABRE Wiki.
