East Sussex Fire and Rescue Service has been tackling a blaze at a skip hire plant alongside a main road, which closed one carriageway temporarily.
Crews were called to the fire on the A22 near Hailsham on 15 August and stayed overnight, although attendance was scaled down in the early hours.
At its height, eight pumping appliances were needed with special vehicles, including the aerial ladder platform from Hastings, and two water bowsers from Uckfield and Burgess Hill.
Incident Commander Tony McCord said the cause was not immediately known but it was not thought to be suspicious.
“At the moment we are separating and removing some of the rubbish and rubble which was on fire and damping down,” he said.
“We are carrying out a controlled burn on some of the timber and this will take a considerable time. While it is now mostly steam coming from the piles of debris, there is still some smoke in the area.
”Environmental services are helping us ensure that any water is being safely taken away. We expect to be here for most of the day.”
One lane of the A22 had to be closed because of the smoke and it was expected to be shut again for a period to assist with the operations to make the site safe.