Work to replace ageing gas mains on Newark Road in Lincoln has been extended, leading to lane closures lasting another six weeks in total.
Lane closures Newark Road for traffic heading out of Lincoln will remain in place for three weeks, though the inbound lane closure has now been lifted.
Cadent, carrying out the works, said contractors ran into unexpected engineering difficulties and will need to now carry out extra work on a gas pipe in Brant Road.
This work is expected to start on April 3 and will take around six weeks. Lane closures will be in place on Brant Road for the duration.
The ageing iron gas main has a history of leaks and is being replaced with tough, new plastic pipes that will last for at least 80 years.
Cadent Authorising Engineer Paul Martin said: “Unfortunately, owing to unexpected engineering difficulties we have had to extend the project so we can complete the work safely.
“We would like to thank people for bearing with us and we will do all we can to finish the work as soon as possible.
“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.”
Access to businesses will not be affected.