The £462,000 project, between junction 15 and junction 17 started on Monday 2 March and will be completed next Tuesday (31 March).
Highways Agency project manager John Lyssejko said:
This is an important project to replace the steel safety barriers in the central reservation over the Robin Hood and Irwell Valley bridges. The barriers have reached the end of their serviceable life and this work will ensure users of the M60 can continue to enjoy safe, smooth and reliable journeys.
The planning for this project has been co-ordinated with the Manchester Smart Motorway and we have maintained four lanes in each direction of the motorway.
To allow the work to take place safely, temporary safety barriers and narrowed lanes have been installed and these will be removed at the weekend and early next week.
To allow the temporary safety barrier and narrowed lanes to be removed, the carriageways will be down to only one lane again overnight on Saturday 28 March (anti-clockwise) and Sunday 29 March (clockwise) with full overnight closure of the clockwise carriageway on Monday 30 March and the anti-clockwise carriageway on 31 March.
Members of the public should contact the Highways Agency Information Line on 0300 123 5000.
Journalists should contact the Highways Agency press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer.