Work to replace ageing gas mains along Newark Road in Lincoln will begin on Monday, causing five weeks of disruption.
Gas network Cadent will begin to renew the gas pipe on Newark Road between the Brant Road and Rookery Lane junctions from February 26.
An ageing iron gas main will be replaced with tough, new plastic pipes that are promised to last for at least 80 years.
While the work is under way, one lane will be closed for traffic travelling into Lincoln and one lane will be closed for traffic heading out of the city, with two-way traffic flow maintained at all times.
The traffic lights at the Newark Road/Brant Road junction will be re-phased during the works; however, motorists are advised to leave extra time for their journey, particularly at peak times in the morning and evening.
Access to businesses will not be affected.
Cadent Authorising Engineer Paul Martin said: “The existing iron gas main has had a history of leaks and needs replacing. The tough new plastic gas pipe will keep local people safe and warm until the end of the century.
“To keep people safe there will need to be lane closures while we do the work. We appreciate that this can be disruptive but we will do our best to reduce any inconvenience to local people and complete the work as soon as we can.”