High volumes of traffic could be making its way through the towns and villages of East Donegal over the next two weeks due to cross-border diversions.
Nighttime works are planned on the A5 between Strabane and Derry from Sunday 28th July to Saturday 10th August.
Traffic is set to be diverted through Lifford, St. Johnston and Carrigans during this period.
DFI Roads will be temporarily closing the road from Magheramason to Newbuildings on an overnight basis only between 7pm and 7am.
The diversions will then operate through the night for all Derry-bound traffic, sending traffic through Lifford, Clonleigh, St Johnston, Carrigans, before crossing into the A40 Mullenan Road in Derry, the Letterkenny Road and Foyle Road onwards.
Country-bound traffic will follow the route from: B48 Duncastle Road, Donemana, B49 Berryhill Road, Artigarvan, Woodend Road, A5 Barnhill Road
The works are being carried out by DFI Roads Contractors. A notice from Traffic Watch NI has advised motorists to expect delays of 15 minutes onto their journeys.