Longford County Council says ongoing works between Newtownforbes and Clooniher are expected to be complete by next month.
The local authority has advised motorists to expect delays in the area and plan journeys accordingly.
The Pavement Rehabilitation Works commenced on January 27th and have led to traffic congestion.
According to the council, surface layer works commenced earlier this week and are expected to be completed by the end of the month.
It says delays will be relatively minor during the final three weeks of the works and regrets any inconvenience caused.