The Department of Infrastructure says there'll be temporary traffic lights on the TT course next week.
It's carrying out road repairs at Handley's Corner on the main road between Kirk Michael and Cronk Y Voddy.
It says while its staff are at the site, there'll be a temporary 30mph speed limit and traffic lights.
The work is due to start on Monday, March 9 and should take around two days to complete.
Hospital bed occupancy falls
More driver services to go online
How many people come here without visas?
Weather warning for icy patches
Government's empty buildings queried by MHK
Saturday's strike-hit bus services listed
Oil and gas company dissolved
Alcohol and entertainment licence reminder from government