The next 3 km of road is the only remaining original piece of the route, travelling through the villages of Bragbury End and Hooks Cross.

The next feature is a roundabout, and the road once again diverges from its original course and takes a left to bypass the village of Watton-at-Stone.

In 1987, with the opening of the Tonwell bypass, the road was completely re-routed along the course of the B1001 from Watton-at-Stone to meet the modern A10 at Ware.

Due to the old nature of the road it suffers from congestion, substandard structure and a high level of accidents.

These comprise a number of different schemes but are put forward together under the collective title of 'A602 Corridor Improvements'.