Sewer main construction works are scheduled to start on Merrigang Street in Bowral from January 17.
The work will be carried out between the intersections of Queen and Jasmine Streets for a distance of 350 metres.
Hours of construction will be 7am to 6pm Mondays to Saturdays.
One lane will be closed and detours will be in place.
The work is expected to be completed by mid February.