Work underway from 6:15pm
A series of evening closures on the Mountain Road start tonight.
The entire route from Ramsey Hairpin to the Creg Ny Baa will shut between 6:15pm and 10:15pm every evening up to and including Friday.
It's as the Department of Infrastructure undertakes maintenance work - including hedge trimming, putting up signs and safety equipment ahead of the Manx Grand Prix, and some drainage work.
The Creg Ny Baa itself remains open and accessible via Hillberry and the Creg Ny Baa back road.
Depending on the weather, the DOI says the work could be completed earlier or even pushed back until Saturday.