A £45,000 gas pipeline upgrade will begin in Buckie next week.
Scotland Gas Networks will carry out the work along West Church Street, which starts on Tuesday and will take approximately 10 weeks.
Existing metal gas mains and services will be replaced with modern plastic polyethylene pipe which has a minimum lifespan of 80 years.
For safety reasons traffic management measurers will have to be put in place, with advance notices erected to inform road-users.
Work will be carried out in three phases, with the first stage in North High Street between the Cluny Square roundabout and the junction with Seaview Place expected to take around a fortnight. There will be four-way temporary traffic lights in operation at the Cluny Square roundabout.
During phase two the road will be closed on the High Street between the junctions with Cluny Square and West Cathcart Street.
The south west car part at Cluny Square will closed during this period, which is likely to last about four weeks, although access to businesses will be maintained.
Phase three will be carried out in West Church Street between the junction with Cluny Place and the roundabout, and in Cluny Place.
There will be four-way traffic lights in place at the roundabout at the start of this phase.
As work progresses these will be removed and three-way traffic lights will be put in place at the junction of West Church Street with Cluny Place.
It may also be necessary for some parking restrictions to be implemented in the vicinity of the works.
Pedestrian access will be maintained and businesses will remain open as usual.
David Munro, Scotland Gas Networks team manager, said consultations had been held with Moray Council as part of the planning process.
He added: "Our engineers will be working six days a week, with extended hours as required, to ensure our works are completed as quickly as possible.
"We understand that roadworks can be frustrating and would like to thank everyone for their patience while we complete this essential work.
"We will do everything we can to minimise disruption and complete our works as quickly as possible."