The DoI has confirmed the Mountain Road will close from Monday February 28, to no later than Friday April 15.
Major works will be taking place at Stella Maris, below Ramsey Hairpin, to fully reconstruct the highway and footpath.
The only practicable way to facilitate these significant works is to close the road entirely at this point for the six week duration of the works, as the width of the road means traffic control measures are unsuitable.
However, between Monday April 4, to no later than Friday April 15, there will be daytime closures to facilitate commuter traffic, closures will be from 9.15am to 4pm Monday to Friday, between the Bungalow and Creg-ny-Baa.
Other works have been scheduled to take place at the same time, to reduce overall disruption, including line painting, surface repairs, verge maintenance and the installation of TT signage over the length of the Mountain Road.
The project cannot be started any later in the year as the road surface and lining must have sufficient time to weather before TT 2022.
Infrastructure Minister Tim Crookall MHK said: ‘These works are necessary to ensure the highway continues to be fit for purpose. The work is also necessary to ensure that this year’s TT races can go ahead. The feedback from the public has been invaluable in identifying a schedule that reduces disruption for residents and businesses by completing a range of different jobs at the same time.’
Access will be retained at all times to Snaefell and the Victory Café via Tholt-y-Will Road (for the duration of the works) and via Hillberry (except during the April closures). Access to the Creg-Ny-Baa Hotel from Douglas via Hillberry and the Creg Ny Baa Back Road will be unaffected. It will also be accessible from the Tholt Y Will/Bungalow route (except during the April Closures).