The scheme will involve drainage works and the resurfacing of a 1.1kilometre stretch of the A21 Ballygowan Road from the Ballycloughin Road in the Saintfield direction.
To facilitate the works, a temporary 40mph speed limit and a prohibition of overtaking from Monday 14 August 2017 until Saturday 16 September 2017 will be introduced. This work will also require the introduction of temporary traffic management measures in the form of temporary traffic signals (off-peak).
Road closures will be necessary to complete the works and road users will be advised in advance.
The Department aims to keep disruption to a minimum, however, delays should be expected and drivers are asked to be patient and allow additional time when planning journeys in the area whilst the road improvements are being carried out.
The dates and duration of the works will be dependent on the progress of the scheme and on favourable weather conditions.
For traffic information about this and other improvement schemes visit: