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.
Fundraiser for TT rider Maria Costello surpasses £220k
Motorsport legend is currently paralysed after breaking her back
Warmer than average May for Island
239 hours of sunshine recorded in the month
Manx BirdLife awarded funding for new warden
Over £28,000 provided by Dormant Asset Fund
Increased DfE support 'to tackle rising costs and global pressures'
Expanded eligibility and increased funding for support schemes