Major roadworks are to be carried out along Framfield Road , Uckfield, next month.
The badly-needed resurfacing will see stretches of the road closed and diversions puts in place.
The county council has planned for the work to be carried out in three phases with separate road closures for each stage of the work.
Phase one will see works from the traffic lights to the junction with Harcourt Road. The diversion will be via Harcourt Road and New Place.
Phase two covers the stretch from the Harcourt Road junction to Selby Road with diversions via Harcourt Road , Vernon Road and Selby Road .
Phase three will be from the junction with Selby Road for a distance of 283 metres in an easterly direction.
The official diversion will be in place via Framfield, Blackboys, Halland and Ridgewood.
The hospital, doctors’ surgery and ambulance station will be the “wrong side” of the last road closure and normal access will be via the diversionary route.
Emergency vehicles are allowed to travel through roadworks.
A spokesman for South Coast Ambulance Services said they liaised closely with the county council over road closures and places where traffic build-ups could develop.
He said they understood emergency access would be maintained, so the ambulance service would not be affected.
The spokesman also pointed out that ambulances were not necessarily kept at their bases waiting to respond to incidents.
They were deployed to other strategic locations, selected on data as to where calls where likely to come from.
Bus services to Uckfield hospital and the Bird-in-Eye surgery will be disrupted during the work.
East Sussex County Council said in a public notice that the road would “only be closed for five days” between April 5 and May 18.
A county council spokesman had no details of when the work will actually be carried out.
However, Uckfield News has been told from another source that the workmen are likely to be in place during the week beginning April 11.