Roadworks will take place on the main route between Douglas and Peel today.
The A1 will go down to a single lane and have temporary traffic lights in place between Snugborough Trading Estate and Braddan Parish Church from 9am until no later than 4pm.
The Department of Infrastructure says it's while patching work on the road surface there takes place.
Officials are advising motorists to consider using other routes around it where possible whilst the work is carried out.
Framework of new Sea Services Agreement ready, says minister
Attorney General says he's stepping down
Road closures in two towns for running event this week
Six weekend ferry crossings could face disruption
President of Tynwald announces retirement
Police close Mountain road
Fuel firm says "fingers crossed" for calmer energy costs
Ring doorbells will need data protection registration - but shouldn't cost you money