The improvements include footpath reconstruction, vegetation clearance and replacement of damaged kerbs, and will be carried out from 10 October, lasting until 31 October, between Wattlesborough and Halfway House.
Work will be carried out overnight, between 8pm and 6am, when there will be two-way traffic signals on a section of around ¼ mile.
Highways Agency project manager Purnima Kaul said:
This work is needed to give a better surface for pedestrians.
Due to the nature of the work there may be some minor disruption to road users but the scheme will give rise to a better walking surface for the general public.
Members of the public should contact the Highways Agency Information Line on 0300 123 5000.
Journalists should contact the Highways Agency press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer.