Parts of Worth Way, a footpath which links East Grinstead and Crawley, will be closed to the public during September and October.
The route between East Grinstead Station and Gullege House, will be shut for improvement surfacing work.
The section between Gullege House and Cob Close, Crawley Down, will also be closed between 9.30am and 3pm to allow access to construction vehicles.
The closures will last for the duration of the work, which is expected to take around six to eight weeks.
Residents will be able to follow an alternative route, using a public bridleway which runs parallel to Worth Way. Maps and signs will be clearly displayed on site to guide people.
David Barling, West Sussex County Council’s Cabinet Member for Residents’ Services, said: “The work is being undertaken because the path has become very rough and uneven, and parts of the path are not draining properly because the camber has being worn down.
“We know this section of Worth Way is extremely popular with residents and is used by around 90,000 people each year.
“It’s inevitable that this work will cause some disruption while it is being carried out but we’ll do our very best to keep this to a minimum.
“We thank people for their patience while the work is carried out and hope they will agree the work will lead to better journeys along this route when it reopens.”
Heidi Brunsdon, County Councillor for Imberdown, added: “I am extremely pleased that this section of Worth Way is being improved.
“We have been working very closely with the contractors to ensure residents and people who use the path suffer as little disruption as possible.
“The path has worn away through the constant use and I think once the work is finished we will all be very pleased with the new surface.”
For more information about the route and how you may be affected, please contact Simon Rowledge at simon.rowledge@westsussex.gov.uk
A confirmed start date for the work will be announced in the next few weeks.
