"Since Saturday the roaddrainage system has been cleaned out and electricity to the surrounding houses has been reinstated by Western Power Distribution, " he said.
An estimated 100-150 tons of debris was spread across the road and torrential rainfall blocked the drainage system, causing severe flooding on the road surface.
Director of Highways Richard Pearson said the work will involve the installation of drainage pipes across the road close to the entrance to the Carrick Park Estate.
The new money being spent on the road by the Welsh government will prioritise drainage works, in a bid to avoid a repeat of the chaos caused by November's deluges.
"There needs to be an urgent review of drainage on the A55 taking into account the age of some sections of the road and our changing weather patterns, " he added.