Scottish Water has apologised for the delays to the city’s £5 million network upgrade, and repeated its pledge to finally complete the project by the end of the summer.
The water board, along with Caledonia Water Alliance, began work on the improvement project in 2016, with an estimated completion time of late last year.
But the plans were revised and although the project was supposed to be completed in the spring, several Dundee roads are still affected.
Next Monday will see roadworks carried out in the Maryfield ward, with Madeira Street, Stobsmuir Road, Wortley Place and Dalkeith Road, all at the junction with Pitkerro Road, closed in phases for four weeks for mains renewals.
Scottish Water apologised for any inconvenience and said it hoped to have all work finished “by the end of the summer”.
In May, the company said the project should be completed by “late summer”.
A spokesman said: “This work is part of the £5m upgrade to water mains across Dundee which will ensure customers in the city can continue to enjoy clear, fresh drinking water long into the future.
“Any road closures are only used when necessary to carry out this essential work safely and in full consultation with Dundee City Council.
“Diversions will be in place for each phase in an effort to keep traffic flowing and minimise any delays.
“We apologise for any inconvenience as this phase of work is completed and thank customers for their patience and understanding.
“The team on site is continuing to work hard to get the remaining work completed by the end of the summer.
“The work is being carried out by Caledonia Water Alliance on Scottish Water’s behalf.”
Pipe refurbishment work includes replacement, relining the internal surface of the mains or cleaning them by swabbing and flushing.
This improves the water quality from the water mains pipes by cleaning any deposits that have built up over time.
Scottish Water had previously blamed the poor state of some of the city’s pipelines, some of which had lain untouched for more than a century prior to the work beginning.
Some pipes that had been earmarked for refurbishment instead had to be replaced entirely, creating a knock-on effect on the initial timescales.
Work has so far been completed on more than 50 miles of mains pipes, providing clean water to more than 15,000 households in the city.
Lynne Short, Dundee City Council’s convener of city development, previously said she understood residents’ frustration but that the works would be worth it in the end.
“We continue to thank people for their patience and assure them that the work should be completed as soon as possible,” she said.
“We are having many miles of very old pipes replaced and in the end we will have a pipe network worthy of our city.”