Manx Gas is asking motorists to be patient as work continues in a busy area of Douglas.
Engineers are replacing mains in Victoria Road, and the company says the project is unlikely to be finished before next Monday (November 7).
There are traffic lights in the area which will remain in place until the work is completed.
Engineering director Robert Gardner is advising motorists to use a different route if possible, and is apologising for any inconvenience.
Peel Commissioner at centre of row would 'welcome' external investigation
Katryna Baptist issues update on social media a week on
Outdoor seating to be installed at Barbary Coast
The closure will be in place from 6am on Monday until 6pm on 30 September
One year on: What's the latest for our Assisted Dying Bill?
MHK behind the bill is 'obviously concerned' at delays
"It had to be big": Family to run five ultra marathons in cousin's memory
Cousins to take on Mountain Course
