A full closure of the A6 will be in place this weekend between Dungiven and Derry, with traffic to be directed through Feeny and Claudy.
The closure is part of continuing work on the completion of the A6 D2D Dualling Project and will take effect from Friday, September 4 at 7pm until Monday, September 7 at 7am.
GAA supporters travelling to Derry could be affected, with Ballinascreen taking on Bellaghy at Celtic Park on Saturday evening, Magherafelt play Lavey at the same venue on Sunday evening.
Road users have been asked to leave extra time for their journey due to the diversion.
Subscribe or register today to discover more from DonegalLive.ie
Buy the e-paper of the Donegal Democrat, Donegal People's Press, Donegal Post and Inish Times here for instant access to Donegal's premier news titles.
Keep up with the latest news from Donegal with our daily newsletter featuring the most important stories of the day delivered to your inbox every evening at 5pm.