The Department of Infrastructure says part of the TT circuit in the west of the Island will be closed over the next few days.
It will be shut between Ballacraine crossroads and Ballig Bridge.
Workers will carry out repairs to the road as well as trim back some of the trees at the side of the carriageway.
The department says while the road is closed between 9.15am and 4.15pm both days, residents will still be able to get to their homes and school buses are unaffected.
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