Yorkshire Water are due to carry out three weeks of sewer investigation work in Sheffield.
From Monday, traffic lights will be erected on Manchester Road, between Deepcar and More Hall Lane, and the speed limit will be reduced to 40mph. The work will take place between 8am and 5pm on weekdays only.
The traffic lights will be removed in evenings and weekends. However, the reduced speed limit will remain in place.
Yorkshire Water apologise for any disruption.