Derry’s Buncrana Road is to reopen tomorrow night.
But NI Water say the work has been completed three weeks ahead of schedule.
Sewer improvement work will continue on the Racecourse Road for the next three weeks.
“Approximately £700,000 was invested in this programme of work. This work is part of a wider £30 million on-going programme of improvement for the sewerage infrastructure within the city,” a NI Water spokesman says.
“The work will also reduce the risk of out of sewer flooding and will meet the city’s existing and future development needs.
“NI Water and its contractor Shearwater Consortium would like to thank the public for their understanding and patience while this essential work was completed.”
Any queries should be directed to NI Water’s customer relations centre via Waterline on 08457 440088.